ZK-502D Bluetooth 5.0 Wireless Stereo Audio Power Amplifier Board TPA3

ZK-502D Bluetooth 5.0 Wireless Stereo Audio Power Amplifier Board TPA3116 50WX2

SKU:XF0028

$17.99

50W+50W Bluetooth 5.0 audio amplifier board module 2.0 dual channel stereo aluminum shell

Question and answer:

How to choose a power supply?

The power supply with the board is critical. The higher the voltage, the higher the current and the better the output power. If you only have 12V 1A, you can bring a 3-4 inch speaker. If you are 19V 5A or above, there is no problem with 8-10 inches, and the power supply must be highly valued. If the voltage is too low, the sound will be distorted after the sound is amplified. If the current is too small, the speaker will pull the voltage low, work abnormally or the sound quality will deteriorate.
It is recommended to use 18V19V24V power supply with current above 3A. If you only have 9V12V or 1A 2A power supply, it can also be used but the power is small. Please pay attention to the maximum volume when using it, which may affect the sound quality.

How to choose a speaker?

Commonly used speakers are generally 4 ohms or 8 ohms, can not distinguish between positive and negative, the effect is the same.If your speaker power is small, it may be used between 10W-30W. The power supply voltage is small to prevent the amplifier from burning out after burning. For example, select a power supply below 15V.
If you are a 50W-100w speaker, don't worry about the speaker burnout. You can choose 12-24V power supply. The higher the voltage you choose, the louder the output sound or power.The speaker power is not recommended to exceed 100W, otherwise the sound quality will be affected.

How to choose Bluetooth or AUX audio input mode?

This audio amplifier module follows the principle of hardware connection first.A successful USB connection is in USB mode, and AUX insertion is in AUX mode.If the USB is not connected and AUX is not plugged in, it is in bluetooth mode, which supports automatic reconnection.Mode toggle with mode prompt.When choosing USB audio input mode, it is important to note that USB can directly connect to the computer and other devices with USB audio output without installing a driver.USB input is lossless input, good sound quality, no interference, no noise.

When the sound becomes louder, the phenomenon of turbid sound appears.

The sound is distorted. Please change the adapter power supply with a higher voltage rating.

After the sound becomes louder, the sound is stuck.

The input power is insufficient, and the power supply itself is intermittently powered off. Please replace the power supply with a larger power.
Or the output power is too large, the power amplifier board is seriously heated, and thermal protection occurs, reducing power usage or enhancing heat dissipation.

Style

ZK-502D 50WX2/Black ZK-1002D 100WX2/Black ZK-502D 50WX2/White ZK-1002D 100WX2/White

Quantity

guaranteeQuality checked
Special gift cardsSpecial gift cards
Free return Within 60 days
Consultancy86-0755-85201155

50W+50W Bluetooth 5.0 audio amplifier board module 2.0 dual channel stereo aluminum shell

Question and answer:

How to choose a power supply?

The power supply with the board is critical. The higher the voltage, the higher the current and the better the output power. If you only have 12V 1A, you can bring a 3-4 inch speaker. If you are 19V 5A or above, there is no problem with 8-10 inches, and the power supply must be highly valued. If the voltage is too low, the sound will be distorted after the sound is amplified. If the current is too small, the speaker will pull the voltage low, work abnormally or the sound quality will deteriorate.
It is recommended to use 18V19V24V power supply with current above 3A. If you only have 9V12V or 1A 2A power supply, it can also be used but the power is small. Please pay attention to the maximum volume when using it, which may affect the sound quality.

How to choose a speaker?

Commonly used speakers are generally 4 ohms or 8 ohms, can not distinguish between positive and negative, the effect is the same.If your speaker power is small, it may be used between 10W-30W. The power supply voltage is small to prevent the amplifier from burning out after burning. For example, select a power supply below 15V.
If you are a 50W-100w speaker, don't worry about the speaker burnout. You can choose 12-24V power supply. The higher the voltage you choose, the louder the output sound or power.The speaker power is not recommended to exceed 100W, otherwise the sound quality will be affected.

How to choose Bluetooth or AUX audio input mode?

This audio amplifier module follows the principle of hardware connection first.A successful USB connection is in USB mode, and AUX insertion is in AUX mode.If the USB is not connected and AUX is not plugged in, it is in bluetooth mode, which supports automatic reconnection.Mode toggle with mode prompt.When choosing USB audio input mode, it is important to note that USB can directly connect to the computer and other devices with USB audio output without installing a driver.USB input is lossless input, good sound quality, no interference, no noise.

When the sound becomes louder, the phenomenon of turbid sound appears.

The sound is distorted. Please change the adapter power supply with a higher voltage rating.

After the sound becomes louder, the sound is stuck.

The input power is insufficient, and the power supply itself is intermittently powered off. Please replace the power supply with a larger power.
Or the output power is too large, the power amplifier board is seriously heated, and thermal protection occurs, reducing power usage or enhancing heat dissipation.

Manual

Purchasing & Delivery

Before you make your purchase, it’s helpful to know the measurements of the area you plan to place the furniture. You should also measure any doorways and hallways through which the furniture will pass to get to its final destination.

Picking up at the store

Shopify Shop requires that all products are properly inspected BEFORE you take it home to insure there are no surprises. Our team is happy to open all packages and will assist in the inspection process. We will then reseal packages for safe transport. We encourage all customers to bring furniture pads or blankets to protect the items during transport as well as rope or tie downs. Shopify Shop will not be responsible for damage that occurs after leaving the store or during transit. It is the purchaser’s responsibility to make sure the correct items are picked up and in good condition.

Delivery

Customers are able to pick the next available delivery day that best fits their schedule. However, to route stops as efficiently as possible, Shopify Shop will provide the time frame. Customers will not be able to choose a time. You will be notified in advance of your scheduled time frame. Please make sure that a responsible adult (18 years or older) will be home at that time.
In preparation for your delivery, please remove existing furniture, pictures, mirrors, accessories, etc. to prevent damages. Also insure that the area where you would like your furniture placed is clear of any old furniture and any other items that may obstruct the passageway of the delivery team. Shopify Shop will deliver, assemble, and set-up your new furniture purchase and remove all packing materials from your home. Our delivery crews are not permitted to move your existing furniture or other household items. Delivery personnel will attempt to deliver the purchased items in a safe and controlled manner but will not attempt to place furniture if they feel it will result in damage to the product or your home. Delivery personnel are unable to remove doors, hoist furniture or carry furniture up more than 3 flights of stairs. An elevator must be available for deliveries to the 4th floor and above.

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The higher the voltage, the higher the current and the better the output power. If you only have 12V 1A, you can bring a 3-4 inch speaker. If you are 19V 5A or above, there is no problem with 8-10 inches, and the power supply must be highly valued. If the voltage is too low, the sound will be distorted after the sound is amplified. If the current is too small, the speaker will pull the voltage low, work abnormally or the sound quality will deteriorate.\u003c\/li\u003e\n\u003cli\u003eIt is recommended to use 18V19V24V power supply with current above 3A. If you only have 9V12V or 1A 2A power supply, it can also be used but the power is small. Please pay attention to the maximum volume when using it, which may affect the sound quality. \u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong style=\"font-size: 1.4em;\"\u003eHow to choose a speaker?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eCommonly used speakers are generally 4 ohms or 8 ohms, can not distinguish between positive and negative, the effect is the same.If your speaker power is small, it may be used between 10W-30W. The power supply voltage is small to prevent the amplifier from burning out after burning. For example, select a power supply below 15V.\u003c\/li\u003e\n\u003cli\u003eIf you are a 50W-100w speaker, don't worry about the speaker burnout. You can choose 12-24V power supply. The higher the voltage you choose, the louder the output sound or power.The speaker power is not recommended to exceed 100W, otherwise the sound quality will be affected.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong style=\"font-size: 1.4em;\"\u003eHow to choose Bluetooth or AUX audio input mode?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eThis audio amplifier module follows the principle of hardware connection first.A successful USB connection is in USB mode, and AUX insertion is in AUX mode.If the USB is not connected and AUX is not plugged in, it is in bluetooth mode, which supports automatic reconnection.Mode toggle with mode prompt.When choosing USB audio input mode, it is important to note that USB can directly connect to the computer and other devices with USB audio output without installing a driver.USB input is lossless input, good sound quality, no interference, no noise.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong style=\"font-size: 1.4em;\"\u003eWhen the sound becomes louder, the phenomenon of turbid sound appears.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eThe sound is distorted. Please change the adapter power supply with a higher voltage rating.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong style=\"font-size: 1.4em;\"\u003eAfter the sound becomes louder, the sound is stuck.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eThe input power is insufficient, and the power supply itself is intermittently powered off. 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The higher the voltage, the higher the current and the better the output power. If you only have 12V 1A, you can bring a 3-4 inch speaker. If you are 19V 5A or above, there is no problem with 8-10 inches, and the power supply must be highly valued. If the voltage is too low, the sound will be distorted after the sound is amplified. If the current is too small, the speaker will pull the voltage low, work abnormally or the sound quality will deteriorate.\u003c\/li\u003e\n\u003cli\u003eIt is recommended to use 18V19V24V power supply with current above 3A. If you only have 9V12V or 1A 2A power supply, it can also be used but the power is small. Please pay attention to the maximum volume when using it, which may affect the sound quality. \u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong style=\"font-size: 1.4em;\"\u003eHow to choose a speaker?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eCommonly used speakers are generally 4 ohms or 8 ohms, can not distinguish between positive and negative, the effect is the same.If your speaker power is small, it may be used between 10W-30W. The power supply voltage is small to prevent the amplifier from burning out after burning. For example, select a power supply below 15V.\u003c\/li\u003e\n\u003cli\u003eIf you are a 50W-100w speaker, don't worry about the speaker burnout. You can choose 12-24V power supply. The higher the voltage you choose, the louder the output sound or power.The speaker power is not recommended to exceed 100W, otherwise the sound quality will be affected.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong style=\"font-size: 1.4em;\"\u003eHow to choose Bluetooth or AUX audio input mode?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eThis audio amplifier module follows the principle of hardware connection first.A successful USB connection is in USB mode, and AUX insertion is in AUX mode.If the USB is not connected and AUX is not plugged in, it is in bluetooth mode, which supports automatic reconnection.Mode toggle with mode prompt.When choosing USB audio input mode, it is important to note that USB can directly connect to the computer and other devices with USB audio output without installing a driver.USB input is lossless input, good sound quality, no interference, no noise.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong style=\"font-size: 1.4em;\"\u003eWhen the sound becomes louder, the phenomenon of turbid sound appears.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eThe sound is distorted. Please change the adapter power supply with a higher voltage rating.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong style=\"font-size: 1.4em;\"\u003eAfter the sound becomes louder, the sound is stuck.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eThe input power is insufficient, and the power supply itself is intermittently powered off. Please replace the power supply with a larger power.\u003c\/li\u003e\n\u003cli\u003eOr the output power is too large, the power amplifier board is seriously heated, and thermal protection occurs, reducing power usage or enhancing heat dissipation. \u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003e \u003c\/span\u003e\u003c\/p\u003e"}
DC-DC 600W 10-60V to 12-80V Boost Converter Step-up Module car Power Supply

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{"id":4799698337863,"title":"ZK-502D Bluetooth 5.0 Wireless Stereo Audio Power Amplifier Board TPA3116 50WX2","handle":"502d-bluetooth-5-0-wireless-stereo-audio-power-amplifier-board-tpa3116-50wx2-car-amp-amplificador-home-theater","description":"\u003cp\u003e\u003cstrong\u003e50W+50W Bluetooth 5.0 audio amplifier board module 2.0 dual channel stereo aluminum shell\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0122\/7558\/0986\/files\/1597897713158_B97C7BF2-4726-4281-B326-293346591F32_480x480.png?v=1597897753\" alt=\"\"\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQuestion and answer:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong style=\"font-size: 1.4em;\"\u003eHow to choose a power supply?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eThe power supply with the board is critical. The higher the voltage, the higher the current and the better the output power. If you only have 12V 1A, you can bring a 3-4 inch speaker. If you are 19V 5A or above, there is no problem with 8-10 inches, and the power supply must be highly valued. If the voltage is too low, the sound will be distorted after the sound is amplified. If the current is too small, the speaker will pull the voltage low, work abnormally or the sound quality will deteriorate.\u003c\/li\u003e\n\u003cli\u003eIt is recommended to use 18V19V24V power supply with current above 3A. If you only have 9V12V or 1A 2A power supply, it can also be used but the power is small. Please pay attention to the maximum volume when using it, which may affect the sound quality. \u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong style=\"font-size: 1.4em;\"\u003eHow to choose a speaker?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eCommonly used speakers are generally 4 ohms or 8 ohms, can not distinguish between positive and negative, the effect is the same.If your speaker power is small, it may be used between 10W-30W. The power supply voltage is small to prevent the amplifier from burning out after burning. For example, select a power supply below 15V.\u003c\/li\u003e\n\u003cli\u003eIf you are a 50W-100w speaker, don't worry about the speaker burnout. You can choose 12-24V power supply. The higher the voltage you choose, the louder the output sound or power.The speaker power is not recommended to exceed 100W, otherwise the sound quality will be affected.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong style=\"font-size: 1.4em;\"\u003eHow to choose Bluetooth or AUX audio input mode?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eThis audio amplifier module follows the principle of hardware connection first.A successful USB connection is in USB mode, and AUX insertion is in AUX mode.If the USB is not connected and AUX is not plugged in, it is in bluetooth mode, which supports automatic reconnection.Mode toggle with mode prompt.When choosing USB audio input mode, it is important to note that USB can directly connect to the computer and other devices with USB audio output without installing a driver.USB input is lossless input, good sound quality, no interference, no noise.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong style=\"font-size: 1.4em;\"\u003eWhen the sound becomes louder, the phenomenon of turbid sound appears.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eThe sound is distorted. Please change the adapter power supply with a higher voltage rating.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong style=\"font-size: 1.4em;\"\u003eAfter the sound becomes louder, the sound is stuck.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eThe input power is insufficient, and the power supply itself is intermittently powered off. Please replace the power supply with a larger power.\u003c\/li\u003e\n\u003cli\u003eOr the output power is too large, the power amplifier board is seriously heated, and thermal protection occurs, reducing power usage or enhancing heat dissipation. \u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003e \u003c\/span\u003e\u003c\/p\u003e","published_at":"2020-08-20T14:15:04+08:00","created_at":"2020-08-20T14:15:01+08:00","vendor":"DIYMORE","type":"","tags":[],"price":1799,"price_min":1799,"price_max":2799,"available":true,"price_varies":true,"compare_at_price":null,"compare_at_price_min":0,"compare_at_price_max":0,"compare_at_price_varies":false,"variants":[{"id":32518706069575,"title":"ZK-502D 50WX2\/Black","option1":"ZK-502D 50WX2\/Black","option2":null,"option3":null,"sku":"XF0028","requires_shipping":true,"taxable":false,"featured_image":null,"available":true,"name":"ZK-502D Bluetooth 5.0 Wireless Stereo Audio Power Amplifier Board TPA3116 50WX2 - ZK-502D 50WX2\/Black","public_title":"ZK-502D 50WX2\/Black","options":["ZK-502D 50WX2\/Black"],"price":1799,"weight":0,"compare_at_price":null,"inventory_management":"shopify","barcode":"","requires_selling_plan":false,"selling_plan_allocations":[]},{"id":32518706102343,"title":"ZK-1002D 100WX2\/Black","option1":"ZK-1002D 100WX2\/Black","option2":null,"option3":null,"sku":"XF0029","requires_shipping":true,"taxable":false,"featured_image":null,"available":true,"name":"ZK-502D Bluetooth 5.0 Wireless Stereo Audio Power Amplifier Board TPA3116 50WX2 - ZK-1002D 100WX2\/Black","public_title":"ZK-1002D 100WX2\/Black","options":["ZK-1002D 100WX2\/Black"],"price":2799,"weight":0,"compare_at_price":null,"inventory_management":"shopify","barcode":"","requires_selling_plan":false,"selling_plan_allocations":[]},{"id":32518706135111,"title":"ZK-502D 50WX2\/White","option1":"ZK-502D 50WX2\/White","option2":null,"option3":null,"sku":"XF0030","requires_shipping":true,"taxable":false,"featured_image":null,"available":true,"name":"ZK-502D Bluetooth 5.0 Wireless Stereo Audio Power Amplifier Board TPA3116 50WX2 - ZK-502D 50WX2\/White","public_title":"ZK-502D 50WX2\/White","options":["ZK-502D 50WX2\/White"],"price":1799,"weight":0,"compare_at_price":null,"inventory_management":"shopify","barcode":"","requires_selling_plan":false,"selling_plan_allocations":[]},{"id":32518706167879,"title":"ZK-1002D 100WX2\/White","option1":"ZK-1002D 100WX2\/White","option2":null,"option3":null,"sku":"XF0031","requires_shipping":true,"taxable":false,"featured_image":null,"available":true,"name":"ZK-502D Bluetooth 5.0 Wireless Stereo Audio Power Amplifier Board TPA3116 50WX2 - ZK-1002D 100WX2\/White","public_title":"ZK-1002D 100WX2\/White","options":["ZK-1002D 100WX2\/White"],"price":2799,"weight":0,"compare_at_price":null,"inventory_management":"shopify","barcode":"","requires_selling_plan":false,"selling_plan_allocations":[]}],"images":["\/\/www.diymore.cc\/cdn\/shop\/products\/502D_2.jpg?v=1597904134","\/\/www.diymore.cc\/cdn\/shop\/products\/502D.jpg?v=1597904134","\/\/www.diymore.cc\/cdn\/shop\/products\/ZK-502D_03966333-e9e9-42fa-8745-eec842c4db90.jpg?v=1597904105","\/\/www.diymore.cc\/cdn\/shop\/products\/ZK-502D.jpg?v=1597904105","\/\/www.diymore.cc\/cdn\/shop\/products\/ZK-502.jpg?v=1597904105","\/\/www.diymore.cc\/cdn\/shop\/products\/7f0188980f64b18a1443f154734a69e3.jpg?v=1597904105","\/\/www.diymore.cc\/cdn\/shop\/products\/ZK-502D_56745630-6c59-478a-9dd4-b77fc8fd881b.jpg?v=1597904121","\/\/www.diymore.cc\/cdn\/shop\/products\/ZK-502D_1c65240d-41a0-4da8-b977-a20edde8658e.jpg?v=1597904124"],"featured_image":"\/\/www.diymore.cc\/cdn\/shop\/products\/502D_2.jpg?v=1597904134","options":["Style"],"media":[{"alt":null,"id":7306636165191,"position":1,"preview_image":{"aspect_ratio":1.0,"height":800,"width":800,"src":"\/\/www.diymore.cc\/cdn\/shop\/products\/502D_2.jpg?v=1597904134"},"aspect_ratio":1.0,"height":800,"media_type":"image","src":"\/\/www.diymore.cc\/cdn\/shop\/products\/502D_2.jpg?v=1597904134","width":800},{"alt":null,"id":7306636132423,"position":2,"preview_image":{"aspect_ratio":1.0,"height":800,"width":800,"src":"\/\/www.diymore.cc\/cdn\/shop\/products\/502D.jpg?v=1597904134"},"aspect_ratio":1.0,"height":800,"media_type":"image","src":"\/\/www.diymore.cc\/cdn\/shop\/products\/502D.jpg?v=1597904134","width":800},{"alt":null,"id":7306636197959,"position":3,"preview_image":{"aspect_ratio":1.0,"height":800,"width":800,"src":"\/\/www.diymore.cc\/cdn\/shop\/products\/ZK-502D_03966333-e9e9-42fa-8745-eec842c4db90.jpg?v=1597904105"},"aspect_ratio":1.0,"height":800,"media_type":"image","src":"\/\/www.diymore.cc\/cdn\/shop\/products\/ZK-502D_03966333-e9e9-42fa-8745-eec842c4db90.jpg?v=1597904105","width":800},{"alt":null,"id":7306636230727,"position":4,"preview_image":{"aspect_ratio":1.0,"height":800,"width":800,"src":"\/\/www.diymore.cc\/cdn\/shop\/products\/ZK-502D.jpg?v=1597904105"},"aspect_ratio":1.0,"height":800,"media_type":"image","src":"\/\/www.diymore.cc\/cdn\/shop\/products\/ZK-502D.jpg?v=1597904105","width":800},{"alt":null,"id":7306636263495,"position":5,"preview_image":{"aspect_ratio":1.0,"height":800,"width":800,"src":"\/\/www.diymore.cc\/cdn\/shop\/products\/ZK-502.jpg?v=1597904105"},"aspect_ratio":1.0,"height":800,"media_type":"image","src":"\/\/www.diymore.cc\/cdn\/shop\/products\/ZK-502.jpg?v=1597904105","width":800},{"alt":null,"id":7306636296263,"position":6,"preview_image":{"aspect_ratio":1.0,"height":800,"width":800,"src":"\/\/www.diymore.cc\/cdn\/shop\/products\/7f0188980f64b18a1443f154734a69e3.jpg?v=1597904105"},"aspect_ratio":1.0,"height":800,"media_type":"image","src":"\/\/www.diymore.cc\/cdn\/shop\/products\/7f0188980f64b18a1443f154734a69e3.jpg?v=1597904105","width":800},{"alt":null,"id":7306636656711,"position":7,"preview_image":{"aspect_ratio":1.0,"height":800,"width":800,"src":"\/\/www.diymore.cc\/cdn\/shop\/products\/ZK-502D_56745630-6c59-478a-9dd4-b77fc8fd881b.jpg?v=1597904121"},"aspect_ratio":1.0,"height":800,"media_type":"image","src":"\/\/www.diymore.cc\/cdn\/shop\/products\/ZK-502D_56745630-6c59-478a-9dd4-b77fc8fd881b.jpg?v=1597904121","width":800},{"alt":null,"id":7306636886087,"position":8,"preview_image":{"aspect_ratio":1.0,"height":800,"width":800,"src":"\/\/www.diymore.cc\/cdn\/shop\/products\/ZK-502D_1c65240d-41a0-4da8-b977-a20edde8658e.jpg?v=1597904124"},"aspect_ratio":1.0,"height":800,"media_type":"image","src":"\/\/www.diymore.cc\/cdn\/shop\/products\/ZK-502D_1c65240d-41a0-4da8-b977-a20edde8658e.jpg?v=1597904124","width":800}],"requires_selling_plan":false,"selling_plan_groups":[],"content":"\u003cp\u003e\u003cstrong\u003e50W+50W Bluetooth 5.0 audio amplifier board module 2.0 dual channel stereo aluminum shell\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0122\/7558\/0986\/files\/1597897713158_B97C7BF2-4726-4281-B326-293346591F32_480x480.png?v=1597897753\" alt=\"\"\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQuestion and answer:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong style=\"font-size: 1.4em;\"\u003eHow to choose a power supply?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eThe power supply with the board is critical. The higher the voltage, the higher the current and the better the output power. If you only have 12V 1A, you can bring a 3-4 inch speaker. If you are 19V 5A or above, there is no problem with 8-10 inches, and the power supply must be highly valued. If the voltage is too low, the sound will be distorted after the sound is amplified. If the current is too small, the speaker will pull the voltage low, work abnormally or the sound quality will deteriorate.\u003c\/li\u003e\n\u003cli\u003eIt is recommended to use 18V19V24V power supply with current above 3A. If you only have 9V12V or 1A 2A power supply, it can also be used but the power is small. Please pay attention to the maximum volume when using it, which may affect the sound quality. \u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong style=\"font-size: 1.4em;\"\u003eHow to choose a speaker?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eCommonly used speakers are generally 4 ohms or 8 ohms, can not distinguish between positive and negative, the effect is the same.If your speaker power is small, it may be used between 10W-30W. The power supply voltage is small to prevent the amplifier from burning out after burning. For example, select a power supply below 15V.\u003c\/li\u003e\n\u003cli\u003eIf you are a 50W-100w speaker, don't worry about the speaker burnout. You can choose 12-24V power supply. The higher the voltage you choose, the louder the output sound or power.The speaker power is not recommended to exceed 100W, otherwise the sound quality will be affected.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong style=\"font-size: 1.4em;\"\u003eHow to choose Bluetooth or AUX audio input mode?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eThis audio amplifier module follows the principle of hardware connection first.A successful USB connection is in USB mode, and AUX insertion is in AUX mode.If the USB is not connected and AUX is not plugged in, it is in bluetooth mode, which supports automatic reconnection.Mode toggle with mode prompt.When choosing USB audio input mode, it is important to note that USB can directly connect to the computer and other devices with USB audio output without installing a driver.USB input is lossless input, good sound quality, no interference, no noise.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong style=\"font-size: 1.4em;\"\u003eWhen the sound becomes louder, the phenomenon of turbid sound appears.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eThe sound is distorted. Please change the adapter power supply with a higher voltage rating.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong style=\"font-size: 1.4em;\"\u003eAfter the sound becomes louder, the sound is stuck.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eThe input power is insufficient, and the power supply itself is intermittently powered off. Please replace the power supply with a larger power.\u003c\/li\u003e\n\u003cli\u003eOr the output power is too large, the power amplifier board is seriously heated, and thermal protection occurs, reducing power usage or enhancing heat dissipation. \u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003e \u003c\/span\u003e\u003c\/p\u003e"}
ESP32-DevKitC V4 ESP32 Based development board Module ESP32 WROOM-32D

$9.99
{"id":4799698337863,"title":"ZK-502D Bluetooth 5.0 Wireless Stereo Audio Power Amplifier Board TPA3116 50WX2","handle":"502d-bluetooth-5-0-wireless-stereo-audio-power-amplifier-board-tpa3116-50wx2-car-amp-amplificador-home-theater","description":"\u003cp\u003e\u003cstrong\u003e50W+50W Bluetooth 5.0 audio amplifier board module 2.0 dual channel stereo aluminum shell\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0122\/7558\/0986\/files\/1597897713158_B97C7BF2-4726-4281-B326-293346591F32_480x480.png?v=1597897753\" alt=\"\"\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQuestion and answer:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong style=\"font-size: 1.4em;\"\u003eHow to choose a power supply?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eThe power supply with the board is critical. The higher the voltage, the higher the current and the better the output power. If you only have 12V 1A, you can bring a 3-4 inch speaker. If you are 19V 5A or above, there is no problem with 8-10 inches, and the power supply must be highly valued. If the voltage is too low, the sound will be distorted after the sound is amplified. If the current is too small, the speaker will pull the voltage low, work abnormally or the sound quality will deteriorate.\u003c\/li\u003e\n\u003cli\u003eIt is recommended to use 18V19V24V power supply with current above 3A. If you only have 9V12V or 1A 2A power supply, it can also be used but the power is small. Please pay attention to the maximum volume when using it, which may affect the sound quality. \u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong style=\"font-size: 1.4em;\"\u003eHow to choose a speaker?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eCommonly used speakers are generally 4 ohms or 8 ohms, can not distinguish between positive and negative, the effect is the same.If your speaker power is small, it may be used between 10W-30W. The power supply voltage is small to prevent the amplifier from burning out after burning. For example, select a power supply below 15V.\u003c\/li\u003e\n\u003cli\u003eIf you are a 50W-100w speaker, don't worry about the speaker burnout. You can choose 12-24V power supply. The higher the voltage you choose, the louder the output sound or power.The speaker power is not recommended to exceed 100W, otherwise the sound quality will be affected.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong style=\"font-size: 1.4em;\"\u003eHow to choose Bluetooth or AUX audio input mode?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eThis audio amplifier module follows the principle of hardware connection first.A successful USB connection is in USB mode, and AUX insertion is in AUX mode.If the USB is not connected and AUX is not plugged in, it is in bluetooth mode, which supports automatic reconnection.Mode toggle with mode prompt.When choosing USB audio input mode, it is important to note that USB can directly connect to the computer and other devices with USB audio output without installing a driver.USB input is lossless input, good sound quality, no interference, no noise.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong style=\"font-size: 1.4em;\"\u003eWhen the sound becomes louder, the phenomenon of turbid sound appears.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eThe sound is distorted. Please change the adapter power supply with a higher voltage rating.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong style=\"font-size: 1.4em;\"\u003eAfter the sound becomes louder, the sound is stuck.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eThe input power is insufficient, and the power supply itself is intermittently powered off. Please replace the power supply with a larger power.\u003c\/li\u003e\n\u003cli\u003eOr the output power is too large, the power amplifier board is seriously heated, and thermal protection occurs, reducing power usage or enhancing heat dissipation. \u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003e \u003c\/span\u003e\u003c\/p\u003e","published_at":"2020-08-20T14:15:04+08:00","created_at":"2020-08-20T14:15:01+08:00","vendor":"DIYMORE","type":"","tags":[],"price":1799,"price_min":1799,"price_max":2799,"available":true,"price_varies":true,"compare_at_price":null,"compare_at_price_min":0,"compare_at_price_max":0,"compare_at_price_varies":false,"variants":[{"id":32518706069575,"title":"ZK-502D 50WX2\/Black","option1":"ZK-502D 50WX2\/Black","option2":null,"option3":null,"sku":"XF0028","requires_shipping":true,"taxable":false,"featured_image":null,"available":true,"name":"ZK-502D Bluetooth 5.0 Wireless Stereo Audio Power Amplifier Board TPA3116 50WX2 - ZK-502D 50WX2\/Black","public_title":"ZK-502D 50WX2\/Black","options":["ZK-502D 50WX2\/Black"],"price":1799,"weight":0,"compare_at_price":null,"inventory_management":"shopify","barcode":"","requires_selling_plan":false,"selling_plan_allocations":[]},{"id":32518706102343,"title":"ZK-1002D 100WX2\/Black","option1":"ZK-1002D 100WX2\/Black","option2":null,"option3":null,"sku":"XF0029","requires_shipping":true,"taxable":false,"featured_image":null,"available":true,"name":"ZK-502D Bluetooth 5.0 Wireless Stereo Audio Power Amplifier Board TPA3116 50WX2 - ZK-1002D 100WX2\/Black","public_title":"ZK-1002D 100WX2\/Black","options":["ZK-1002D 100WX2\/Black"],"price":2799,"weight":0,"compare_at_price":null,"inventory_management":"shopify","barcode":"","requires_selling_plan":false,"selling_plan_allocations":[]},{"id":32518706135111,"title":"ZK-502D 50WX2\/White","option1":"ZK-502D 50WX2\/White","option2":null,"option3":null,"sku":"XF0030","requires_shipping":true,"taxable":false,"featured_image":null,"available":true,"name":"ZK-502D Bluetooth 5.0 Wireless Stereo Audio Power Amplifier Board TPA3116 50WX2 - ZK-502D 50WX2\/White","public_title":"ZK-502D 50WX2\/White","options":["ZK-502D 50WX2\/White"],"price":1799,"weight":0,"compare_at_price":null,"inventory_management":"shopify","barcode":"","requires_selling_plan":false,"selling_plan_allocations":[]},{"id":32518706167879,"title":"ZK-1002D 100WX2\/White","option1":"ZK-1002D 100WX2\/White","option2":null,"option3":null,"sku":"XF0031","requires_shipping":true,"taxable":false,"featured_image":null,"available":true,"name":"ZK-502D Bluetooth 5.0 Wireless Stereo Audio Power Amplifier Board TPA3116 50WX2 - ZK-1002D 100WX2\/White","public_title":"ZK-1002D 100WX2\/White","options":["ZK-1002D 100WX2\/White"],"price":2799,"weight":0,"compare_at_price":null,"inventory_management":"shopify","barcode":"","requires_selling_plan":false,"selling_plan_allocations":[]}],"images":["\/\/www.diymore.cc\/cdn\/shop\/products\/502D_2.jpg?v=1597904134","\/\/www.diymore.cc\/cdn\/shop\/products\/502D.jpg?v=1597904134","\/\/www.diymore.cc\/cdn\/shop\/products\/ZK-502D_03966333-e9e9-42fa-8745-eec842c4db90.jpg?v=1597904105","\/\/www.diymore.cc\/cdn\/shop\/products\/ZK-502D.jpg?v=1597904105","\/\/www.diymore.cc\/cdn\/shop\/products\/ZK-502.jpg?v=1597904105","\/\/www.diymore.cc\/cdn\/shop\/products\/7f0188980f64b18a1443f154734a69e3.jpg?v=1597904105","\/\/www.diymore.cc\/cdn\/shop\/products\/ZK-502D_56745630-6c59-478a-9dd4-b77fc8fd881b.jpg?v=1597904121","\/\/www.diymore.cc\/cdn\/shop\/products\/ZK-502D_1c65240d-41a0-4da8-b977-a20edde8658e.jpg?v=1597904124"],"featured_image":"\/\/www.diymore.cc\/cdn\/shop\/products\/502D_2.jpg?v=1597904134","options":["Style"],"media":[{"alt":null,"id":7306636165191,"position":1,"preview_image":{"aspect_ratio":1.0,"height":800,"width":800,"src":"\/\/www.diymore.cc\/cdn\/shop\/products\/502D_2.jpg?v=1597904134"},"aspect_ratio":1.0,"height":800,"media_type":"image","src":"\/\/www.diymore.cc\/cdn\/shop\/products\/502D_2.jpg?v=1597904134","width":800},{"alt":null,"id":7306636132423,"position":2,"preview_image":{"aspect_ratio":1.0,"height":800,"width":800,"src":"\/\/www.diymore.cc\/cdn\/shop\/products\/502D.jpg?v=1597904134"},"aspect_ratio":1.0,"height":800,"media_type":"image","src":"\/\/www.diymore.cc\/cdn\/shop\/products\/502D.jpg?v=1597904134","width":800},{"alt":null,"id":7306636197959,"position":3,"preview_image":{"aspect_ratio":1.0,"height":800,"width":800,"src":"\/\/www.diymore.cc\/cdn\/shop\/products\/ZK-502D_03966333-e9e9-42fa-8745-eec842c4db90.jpg?v=1597904105"},"aspect_ratio":1.0,"height":800,"media_type":"image","src":"\/\/www.diymore.cc\/cdn\/shop\/products\/ZK-502D_03966333-e9e9-42fa-8745-eec842c4db90.jpg?v=1597904105","width":800},{"alt":null,"id":7306636230727,"position":4,"preview_image":{"aspect_ratio":1.0,"height":800,"width":800,"src":"\/\/www.diymore.cc\/cdn\/shop\/products\/ZK-502D.jpg?v=1597904105"},"aspect_ratio":1.0,"height":800,"media_type":"image","src":"\/\/www.diymore.cc\/cdn\/shop\/products\/ZK-502D.jpg?v=1597904105","width":800},{"alt":null,"id":7306636263495,"position":5,"preview_image":{"aspect_ratio":1.0,"height":800,"width":800,"src":"\/\/www.diymore.cc\/cdn\/shop\/products\/ZK-502.jpg?v=1597904105"},"aspect_ratio":1.0,"height":800,"media_type":"image","src":"\/\/www.diymore.cc\/cdn\/shop\/products\/ZK-502.jpg?v=1597904105","width":800},{"alt":null,"id":7306636296263,"position":6,"preview_image":{"aspect_ratio":1.0,"height":800,"width":800,"src":"\/\/www.diymore.cc\/cdn\/shop\/products\/7f0188980f64b18a1443f154734a69e3.jpg?v=1597904105"},"aspect_ratio":1.0,"height":800,"media_type":"image","src":"\/\/www.diymore.cc\/cdn\/shop\/products\/7f0188980f64b18a1443f154734a69e3.jpg?v=1597904105","width":800},{"alt":null,"id":7306636656711,"position":7,"preview_image":{"aspect_ratio":1.0,"height":800,"width":800,"src":"\/\/www.diymore.cc\/cdn\/shop\/products\/ZK-502D_56745630-6c59-478a-9dd4-b77fc8fd881b.jpg?v=1597904121"},"aspect_ratio":1.0,"height":800,"media_type":"image","src":"\/\/www.diymore.cc\/cdn\/shop\/products\/ZK-502D_56745630-6c59-478a-9dd4-b77fc8fd881b.jpg?v=1597904121","width":800},{"alt":null,"id":7306636886087,"position":8,"preview_image":{"aspect_ratio":1.0,"height":800,"width":800,"src":"\/\/www.diymore.cc\/cdn\/shop\/products\/ZK-502D_1c65240d-41a0-4da8-b977-a20edde8658e.jpg?v=1597904124"},"aspect_ratio":1.0,"height":800,"media_type":"image","src":"\/\/www.diymore.cc\/cdn\/shop\/products\/ZK-502D_1c65240d-41a0-4da8-b977-a20edde8658e.jpg?v=1597904124","width":800}],"requires_selling_plan":false,"selling_plan_groups":[],"content":"\u003cp\u003e\u003cstrong\u003e50W+50W Bluetooth 5.0 audio amplifier board module 2.0 dual channel stereo aluminum shell\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0122\/7558\/0986\/files\/1597897713158_B97C7BF2-4726-4281-B326-293346591F32_480x480.png?v=1597897753\" alt=\"\"\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQuestion and answer:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong style=\"font-size: 1.4em;\"\u003eHow to choose a power supply?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eThe power supply with the board is critical. The higher the voltage, the higher the current and the better the output power. If you only have 12V 1A, you can bring a 3-4 inch speaker. If you are 19V 5A or above, there is no problem with 8-10 inches, and the power supply must be highly valued. If the voltage is too low, the sound will be distorted after the sound is amplified. If the current is too small, the speaker will pull the voltage low, work abnormally or the sound quality will deteriorate.\u003c\/li\u003e\n\u003cli\u003eIt is recommended to use 18V19V24V power supply with current above 3A. If you only have 9V12V or 1A 2A power supply, it can also be used but the power is small. Please pay attention to the maximum volume when using it, which may affect the sound quality. \u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong style=\"font-size: 1.4em;\"\u003eHow to choose a speaker?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eCommonly used speakers are generally 4 ohms or 8 ohms, can not distinguish between positive and negative, the effect is the same.If your speaker power is small, it may be used between 10W-30W. The power supply voltage is small to prevent the amplifier from burning out after burning. For example, select a power supply below 15V.\u003c\/li\u003e\n\u003cli\u003eIf you are a 50W-100w speaker, don't worry about the speaker burnout. You can choose 12-24V power supply. The higher the voltage you choose, the louder the output sound or power.The speaker power is not recommended to exceed 100W, otherwise the sound quality will be affected.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong style=\"font-size: 1.4em;\"\u003eHow to choose Bluetooth or AUX audio input mode?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eThis audio amplifier module follows the principle of hardware connection first.A successful USB connection is in USB mode, and AUX insertion is in AUX mode.If the USB is not connected and AUX is not plugged in, it is in bluetooth mode, which supports automatic reconnection.Mode toggle with mode prompt.When choosing USB audio input mode, it is important to note that USB can directly connect to the computer and other devices with USB audio output without installing a driver.USB input is lossless input, good sound quality, no interference, no noise.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong style=\"font-size: 1.4em;\"\u003eWhen the sound becomes louder, the phenomenon of turbid sound appears.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eThe sound is distorted. Please change the adapter power supply with a higher voltage rating.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong style=\"font-size: 1.4em;\"\u003eAfter the sound becomes louder, the sound is stuck.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eThe input power is insufficient, and the power supply itself is intermittently powered off. Please replace the power supply with a larger power.\u003c\/li\u003e\n\u003cli\u003eOr the output power is too large, the power amplifier board is seriously heated, and thermal protection occurs, reducing power usage or enhancing heat dissipation. \u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003e \u003c\/span\u003e\u003c\/p\u003e"}
ESP32-WROOM-32U ESP32-DevKitC Module Core Board ESP32 Development Board

$7.99
{"id":4799698337863,"title":"ZK-502D Bluetooth 5.0 Wireless Stereo Audio Power Amplifier Board TPA3116 50WX2","handle":"502d-bluetooth-5-0-wireless-stereo-audio-power-amplifier-board-tpa3116-50wx2-car-amp-amplificador-home-theater","description":"\u003cp\u003e\u003cstrong\u003e50W+50W Bluetooth 5.0 audio amplifier board module 2.0 dual channel stereo aluminum shell\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0122\/7558\/0986\/files\/1597897713158_B97C7BF2-4726-4281-B326-293346591F32_480x480.png?v=1597897753\" alt=\"\"\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQuestion and answer:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong style=\"font-size: 1.4em;\"\u003eHow to choose a power supply?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eThe power supply with the board is critical. The higher the voltage, the higher the current and the better the output power. If you only have 12V 1A, you can bring a 3-4 inch speaker. If you are 19V 5A or above, there is no problem with 8-10 inches, and the power supply must be highly valued. If the voltage is too low, the sound will be distorted after the sound is amplified. If the current is too small, the speaker will pull the voltage low, work abnormally or the sound quality will deteriorate.\u003c\/li\u003e\n\u003cli\u003eIt is recommended to use 18V19V24V power supply with current above 3A. If you only have 9V12V or 1A 2A power supply, it can also be used but the power is small. Please pay attention to the maximum volume when using it, which may affect the sound quality. \u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong style=\"font-size: 1.4em;\"\u003eHow to choose a speaker?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eCommonly used speakers are generally 4 ohms or 8 ohms, can not distinguish between positive and negative, the effect is the same.If your speaker power is small, it may be used between 10W-30W. The power supply voltage is small to prevent the amplifier from burning out after burning. For example, select a power supply below 15V.\u003c\/li\u003e\n\u003cli\u003eIf you are a 50W-100w speaker, don't worry about the speaker burnout. You can choose 12-24V power supply. The higher the voltage you choose, the louder the output sound or power.The speaker power is not recommended to exceed 100W, otherwise the sound quality will be affected.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong style=\"font-size: 1.4em;\"\u003eHow to choose Bluetooth or AUX audio input mode?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eThis audio amplifier module follows the principle of hardware connection first.A successful USB connection is in USB mode, and AUX insertion is in AUX mode.If the USB is not connected and AUX is not plugged in, it is in bluetooth mode, which supports automatic reconnection.Mode toggle with mode prompt.When choosing USB audio input mode, it is important to note that USB can directly connect to the computer and other devices with USB audio output without installing a driver.USB input is lossless input, good sound quality, no interference, no noise.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong style=\"font-size: 1.4em;\"\u003eWhen the sound becomes louder, the phenomenon of turbid sound appears.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eThe sound is distorted. Please change the adapter power supply with a higher voltage rating.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong style=\"font-size: 1.4em;\"\u003eAfter the sound becomes louder, the sound is stuck.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eThe input power is insufficient, and the power supply itself is intermittently powered off. Please replace the power supply with a larger power.\u003c\/li\u003e\n\u003cli\u003eOr the output power is too large, the power amplifier board is seriously heated, and thermal protection occurs, reducing power usage or enhancing heat dissipation. \u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003e \u003c\/span\u003e\u003c\/p\u003e","published_at":"2020-08-20T14:15:04+08:00","created_at":"2020-08-20T14:15:01+08:00","vendor":"DIYMORE","type":"","tags":[],"price":1799,"price_min":1799,"price_max":2799,"available":true,"price_varies":true,"compare_at_price":null,"compare_at_price_min":0,"compare_at_price_max":0,"compare_at_price_varies":false,"variants":[{"id":32518706069575,"title":"ZK-502D 50WX2\/Black","option1":"ZK-502D 50WX2\/Black","option2":null,"option3":null,"sku":"XF0028","requires_shipping":true,"taxable":false,"featured_image":null,"available":true,"name":"ZK-502D Bluetooth 5.0 Wireless Stereo Audio Power Amplifier Board TPA3116 50WX2 - ZK-502D 50WX2\/Black","public_title":"ZK-502D 50WX2\/Black","options":["ZK-502D 50WX2\/Black"],"price":1799,"weight":0,"compare_at_price":null,"inventory_management":"shopify","barcode":"","requires_selling_plan":false,"selling_plan_allocations":[]},{"id":32518706102343,"title":"ZK-1002D 100WX2\/Black","option1":"ZK-1002D 100WX2\/Black","option2":null,"option3":null,"sku":"XF0029","requires_shipping":true,"taxable":false,"featured_image":null,"available":true,"name":"ZK-502D Bluetooth 5.0 Wireless Stereo Audio Power Amplifier Board TPA3116 50WX2 - ZK-1002D 100WX2\/Black","public_title":"ZK-1002D 100WX2\/Black","options":["ZK-1002D 100WX2\/Black"],"price":2799,"weight":0,"compare_at_price":null,"inventory_management":"shopify","barcode":"","requires_selling_plan":false,"selling_plan_allocations":[]},{"id":32518706135111,"title":"ZK-502D 50WX2\/White","option1":"ZK-502D 50WX2\/White","option2":null,"option3":null,"sku":"XF0030","requires_shipping":true,"taxable":false,"featured_image":null,"available":true,"name":"ZK-502D Bluetooth 5.0 Wireless Stereo Audio Power Amplifier Board TPA3116 50WX2 - ZK-502D 50WX2\/White","public_title":"ZK-502D 50WX2\/White","options":["ZK-502D 50WX2\/White"],"price":1799,"weight":0,"compare_at_price":null,"inventory_management":"shopify","barcode":"","requires_selling_plan":false,"selling_plan_allocations":[]},{"id":32518706167879,"title":"ZK-1002D 100WX2\/White","option1":"ZK-1002D 100WX2\/White","option2":null,"option3":null,"sku":"XF0031","requires_shipping":true,"taxable":false,"featured_image":null,"available":true,"name":"ZK-502D Bluetooth 5.0 Wireless Stereo Audio Power Amplifier Board TPA3116 50WX2 - 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The higher the voltage, the higher the current and the better the output power. If you only have 12V 1A, you can bring a 3-4 inch speaker. If you are 19V 5A or above, there is no problem with 8-10 inches, and the power supply must be highly valued. If the voltage is too low, the sound will be distorted after the sound is amplified. If the current is too small, the speaker will pull the voltage low, work abnormally or the sound quality will deteriorate.\u003c\/li\u003e\n\u003cli\u003eIt is recommended to use 18V19V24V power supply with current above 3A. If you only have 9V12V or 1A 2A power supply, it can also be used but the power is small. Please pay attention to the maximum volume when using it, which may affect the sound quality. \u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong style=\"font-size: 1.4em;\"\u003eHow to choose a speaker?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eCommonly used speakers are generally 4 ohms or 8 ohms, can not distinguish between positive and negative, the effect is the same.If your speaker power is small, it may be used between 10W-30W. The power supply voltage is small to prevent the amplifier from burning out after burning. For example, select a power supply below 15V.\u003c\/li\u003e\n\u003cli\u003eIf you are a 50W-100w speaker, don't worry about the speaker burnout. You can choose 12-24V power supply. The higher the voltage you choose, the louder the output sound or power.The speaker power is not recommended to exceed 100W, otherwise the sound quality will be affected.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong style=\"font-size: 1.4em;\"\u003eHow to choose Bluetooth or AUX audio input mode?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eThis audio amplifier module follows the principle of hardware connection first.A successful USB connection is in USB mode, and AUX insertion is in AUX mode.If the USB is not connected and AUX is not plugged in, it is in bluetooth mode, which supports automatic reconnection.Mode toggle with mode prompt.When choosing USB audio input mode, it is important to note that USB can directly connect to the computer and other devices with USB audio output without installing a driver.USB input is lossless input, good sound quality, no interference, no noise.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong style=\"font-size: 1.4em;\"\u003eWhen the sound becomes louder, the phenomenon of turbid sound appears.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eThe sound is distorted. Please change the adapter power supply with a higher voltage rating.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong style=\"font-size: 1.4em;\"\u003eAfter the sound becomes louder, the sound is stuck.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eThe input power is insufficient, and the power supply itself is intermittently powered off. Please replace the power supply with a larger power.\u003c\/li\u003e\n\u003cli\u003eOr the output power is too large, the power amplifier board is seriously heated, and thermal protection occurs, reducing power usage or enhancing heat dissipation. \u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003e \u003c\/span\u003e\u003c\/p\u003e"}
2.4" 2.4 inch 240x320 SPI TFT LCD Serial Port Module 5V/3.3V PBC Adapter Micro SD ILI9341 White LED RGB Vertical Stripe No Touch

$11.99
{"id":4799698337863,"title":"ZK-502D Bluetooth 5.0 Wireless Stereo Audio Power Amplifier Board TPA3116 50WX2","handle":"502d-bluetooth-5-0-wireless-stereo-audio-power-amplifier-board-tpa3116-50wx2-car-amp-amplificador-home-theater","description":"\u003cp\u003e\u003cstrong\u003e50W+50W Bluetooth 5.0 audio amplifier board module 2.0 dual channel stereo aluminum shell\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0122\/7558\/0986\/files\/1597897713158_B97C7BF2-4726-4281-B326-293346591F32_480x480.png?v=1597897753\" alt=\"\"\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQuestion and answer:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong style=\"font-size: 1.4em;\"\u003eHow to choose a power supply?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eThe power supply with the board is critical. The higher the voltage, the higher the current and the better the output power. If you only have 12V 1A, you can bring a 3-4 inch speaker. If you are 19V 5A or above, there is no problem with 8-10 inches, and the power supply must be highly valued. If the voltage is too low, the sound will be distorted after the sound is amplified. If the current is too small, the speaker will pull the voltage low, work abnormally or the sound quality will deteriorate.\u003c\/li\u003e\n\u003cli\u003eIt is recommended to use 18V19V24V power supply with current above 3A. If you only have 9V12V or 1A 2A power supply, it can also be used but the power is small. Please pay attention to the maximum volume when using it, which may affect the sound quality. \u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong style=\"font-size: 1.4em;\"\u003eHow to choose a speaker?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eCommonly used speakers are generally 4 ohms or 8 ohms, can not distinguish between positive and negative, the effect is the same.If your speaker power is small, it may be used between 10W-30W. The power supply voltage is small to prevent the amplifier from burning out after burning. For example, select a power supply below 15V.\u003c\/li\u003e\n\u003cli\u003eIf you are a 50W-100w speaker, don't worry about the speaker burnout. You can choose 12-24V power supply. The higher the voltage you choose, the louder the output sound or power.The speaker power is not recommended to exceed 100W, otherwise the sound quality will be affected.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong style=\"font-size: 1.4em;\"\u003eHow to choose Bluetooth or AUX audio input mode?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eThis audio amplifier module follows the principle of hardware connection first.A successful USB connection is in USB mode, and AUX insertion is in AUX mode.If the USB is not connected and AUX is not plugged in, it is in bluetooth mode, which supports automatic reconnection.Mode toggle with mode prompt.When choosing USB audio input mode, it is important to note that USB can directly connect to the computer and other devices with USB audio output without installing a driver.USB input is lossless input, good sound quality, no interference, no noise.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong style=\"font-size: 1.4em;\"\u003eWhen the sound becomes louder, the phenomenon of turbid sound appears.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eThe sound is distorted. Please change the adapter power supply with a higher voltage rating.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong style=\"font-size: 1.4em;\"\u003eAfter the sound becomes louder, the sound is stuck.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eThe input power is insufficient, and the power supply itself is intermittently powered off. Please replace the power supply with a larger power.\u003c\/li\u003e\n\u003cli\u003eOr the output power is too large, the power amplifier board is seriously heated, and thermal protection occurs, reducing power usage or enhancing heat dissipation. \u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003e \u003c\/span\u003e\u003c\/p\u003e","published_at":"2020-08-20T14:15:04+08:00","created_at":"2020-08-20T14:15:01+08:00","vendor":"DIYMORE","type":"","tags":[],"price":1799,"price_min":1799,"price_max":2799,"available":true,"price_varies":true,"compare_at_price":null,"compare_at_price_min":0,"compare_at_price_max":0,"compare_at_price_varies":false,"variants":[{"id":32518706069575,"title":"ZK-502D 50WX2\/Black","option1":"ZK-502D 50WX2\/Black","option2":null,"option3":null,"sku":"XF0028","requires_shipping":true,"taxable":false,"featured_image":null,"available":true,"name":"ZK-502D Bluetooth 5.0 Wireless Stereo Audio Power Amplifier Board TPA3116 50WX2 - ZK-502D 50WX2\/Black","public_title":"ZK-502D 50WX2\/Black","options":["ZK-502D 50WX2\/Black"],"price":1799,"weight":0,"compare_at_price":null,"inventory_management":"shopify","barcode":"","requires_selling_plan":false,"selling_plan_allocations":[]},{"id":32518706102343,"title":"ZK-1002D 100WX2\/Black","option1":"ZK-1002D 100WX2\/Black","option2":null,"option3":null,"sku":"XF0029","requires_shipping":true,"taxable":false,"featured_image":null,"available":true,"name":"ZK-502D Bluetooth 5.0 Wireless Stereo Audio Power Amplifier Board TPA3116 50WX2 - 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The higher the voltage, the higher the current and the better the output power. If you only have 12V 1A, you can bring a 3-4 inch speaker. If you are 19V 5A or above, there is no problem with 8-10 inches, and the power supply must be highly valued. If the voltage is too low, the sound will be distorted after the sound is amplified. If the current is too small, the speaker will pull the voltage low, work abnormally or the sound quality will deteriorate.\u003c\/li\u003e\n\u003cli\u003eIt is recommended to use 18V19V24V power supply with current above 3A. If you only have 9V12V or 1A 2A power supply, it can also be used but the power is small. Please pay attention to the maximum volume when using it, which may affect the sound quality. \u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong style=\"font-size: 1.4em;\"\u003eHow to choose a speaker?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eCommonly used speakers are generally 4 ohms or 8 ohms, can not distinguish between positive and negative, the effect is the same.If your speaker power is small, it may be used between 10W-30W. The power supply voltage is small to prevent the amplifier from burning out after burning. For example, select a power supply below 15V.\u003c\/li\u003e\n\u003cli\u003eIf you are a 50W-100w speaker, don't worry about the speaker burnout. You can choose 12-24V power supply. The higher the voltage you choose, the louder the output sound or power.The speaker power is not recommended to exceed 100W, otherwise the sound quality will be affected.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong style=\"font-size: 1.4em;\"\u003eHow to choose Bluetooth or AUX audio input mode?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eThis audio amplifier module follows the principle of hardware connection first.A successful USB connection is in USB mode, and AUX insertion is in AUX mode.If the USB is not connected and AUX is not plugged in, it is in bluetooth mode, which supports automatic reconnection.Mode toggle with mode prompt.When choosing USB audio input mode, it is important to note that USB can directly connect to the computer and other devices with USB audio output without installing a driver.USB input is lossless input, good sound quality, no interference, no noise.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong style=\"font-size: 1.4em;\"\u003eWhen the sound becomes louder, the phenomenon of turbid sound appears.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eThe sound is distorted. Please change the adapter power supply with a higher voltage rating.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong style=\"font-size: 1.4em;\"\u003eAfter the sound becomes louder, the sound is stuck.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eThe input power is insufficient, and the power supply itself is intermittently powered off. Please replace the power supply with a larger power.\u003c\/li\u003e\n\u003cli\u003eOr the output power is too large, the power amplifier board is seriously heated, and thermal protection occurs, reducing power usage or enhancing heat dissipation. \u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003e \u003c\/span\u003e\u003c\/p\u003e"}
125K EM4100 RFID Karten Leser Modul RDM6300 ID RF UART Output für Arduino

$3.56
{"id":4799698337863,"title":"ZK-502D Bluetooth 5.0 Wireless Stereo Audio Power Amplifier Board TPA3116 50WX2","handle":"502d-bluetooth-5-0-wireless-stereo-audio-power-amplifier-board-tpa3116-50wx2-car-amp-amplificador-home-theater","description":"\u003cp\u003e\u003cstrong\u003e50W+50W Bluetooth 5.0 audio amplifier board module 2.0 dual channel stereo aluminum shell\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0122\/7558\/0986\/files\/1597897713158_B97C7BF2-4726-4281-B326-293346591F32_480x480.png?v=1597897753\" alt=\"\"\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQuestion and answer:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong style=\"font-size: 1.4em;\"\u003eHow to choose a power supply?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eThe power supply with the board is critical. The higher the voltage, the higher the current and the better the output power. If you only have 12V 1A, you can bring a 3-4 inch speaker. If you are 19V 5A or above, there is no problem with 8-10 inches, and the power supply must be highly valued. If the voltage is too low, the sound will be distorted after the sound is amplified. If the current is too small, the speaker will pull the voltage low, work abnormally or the sound quality will deteriorate.\u003c\/li\u003e\n\u003cli\u003eIt is recommended to use 18V19V24V power supply with current above 3A. If you only have 9V12V or 1A 2A power supply, it can also be used but the power is small. Please pay attention to the maximum volume when using it, which may affect the sound quality. \u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong style=\"font-size: 1.4em;\"\u003eHow to choose a speaker?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eCommonly used speakers are generally 4 ohms or 8 ohms, can not distinguish between positive and negative, the effect is the same.If your speaker power is small, it may be used between 10W-30W. The power supply voltage is small to prevent the amplifier from burning out after burning. For example, select a power supply below 15V.\u003c\/li\u003e\n\u003cli\u003eIf you are a 50W-100w speaker, don't worry about the speaker burnout. You can choose 12-24V power supply. The higher the voltage you choose, the louder the output sound or power.The speaker power is not recommended to exceed 100W, otherwise the sound quality will be affected.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong style=\"font-size: 1.4em;\"\u003eHow to choose Bluetooth or AUX audio input mode?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eThis audio amplifier module follows the principle of hardware connection first.A successful USB connection is in USB mode, and AUX insertion is in AUX mode.If the USB is not connected and AUX is not plugged in, it is in bluetooth mode, which supports automatic reconnection.Mode toggle with mode prompt.When choosing USB audio input mode, it is important to note that USB can directly connect to the computer and other devices with USB audio output without installing a driver.USB input is lossless input, good sound quality, no interference, no noise.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong style=\"font-size: 1.4em;\"\u003eWhen the sound becomes louder, the phenomenon of turbid sound appears.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eThe sound is distorted. Please change the adapter power supply with a higher voltage rating.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong style=\"font-size: 1.4em;\"\u003eAfter the sound becomes louder, the sound is stuck.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eThe input power is insufficient, and the power supply itself is intermittently powered off. Please replace the power supply with a larger power.\u003c\/li\u003e\n\u003cli\u003eOr the output power is too large, the power amplifier board is seriously heated, and thermal protection occurs, reducing power usage or enhancing heat dissipation. \u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003e \u003c\/span\u003e\u003c\/p\u003e","published_at":"2020-08-20T14:15:04+08:00","created_at":"2020-08-20T14:15:01+08:00","vendor":"DIYMORE","type":"","tags":[],"price":1799,"price_min":1799,"price_max":2799,"available":true,"price_varies":true,"compare_at_price":null,"compare_at_price_min":0,"compare_at_price_max":0,"compare_at_price_varies":false,"variants":[{"id":32518706069575,"title":"ZK-502D 50WX2\/Black","option1":"ZK-502D 50WX2\/Black","option2":null,"option3":null,"sku":"XF0028","requires_shipping":true,"taxable":false,"featured_image":null,"available":true,"name":"ZK-502D Bluetooth 5.0 Wireless Stereo Audio Power Amplifier Board TPA3116 50WX2 - ZK-502D 50WX2\/Black","public_title":"ZK-502D 50WX2\/Black","options":["ZK-502D 50WX2\/Black"],"price":1799,"weight":0,"compare_at_price":null,"inventory_management":"shopify","barcode":"","requires_selling_plan":false,"selling_plan_allocations":[]},{"id":32518706102343,"title":"ZK-1002D 100WX2\/Black","option1":"ZK-1002D 100WX2\/Black","option2":null,"option3":null,"sku":"XF0029","requires_shipping":true,"taxable":false,"featured_image":null,"available":true,"name":"ZK-502D Bluetooth 5.0 Wireless Stereo Audio Power Amplifier Board TPA3116 50WX2 - 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The higher the voltage, the higher the current and the better the output power. If you only have 12V 1A, you can bring a 3-4 inch speaker. If you are 19V 5A or above, there is no problem with 8-10 inches, and the power supply must be highly valued. If the voltage is too low, the sound will be distorted after the sound is amplified. If the current is too small, the speaker will pull the voltage low, work abnormally or the sound quality will deteriorate.\u003c\/li\u003e\n\u003cli\u003eIt is recommended to use 18V19V24V power supply with current above 3A. If you only have 9V12V or 1A 2A power supply, it can also be used but the power is small. Please pay attention to the maximum volume when using it, which may affect the sound quality. \u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong style=\"font-size: 1.4em;\"\u003eHow to choose a speaker?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eCommonly used speakers are generally 4 ohms or 8 ohms, can not distinguish between positive and negative, the effect is the same.If your speaker power is small, it may be used between 10W-30W. The power supply voltage is small to prevent the amplifier from burning out after burning. For example, select a power supply below 15V.\u003c\/li\u003e\n\u003cli\u003eIf you are a 50W-100w speaker, don't worry about the speaker burnout. You can choose 12-24V power supply. The higher the voltage you choose, the louder the output sound or power.The speaker power is not recommended to exceed 100W, otherwise the sound quality will be affected.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong style=\"font-size: 1.4em;\"\u003eHow to choose Bluetooth or AUX audio input mode?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eThis audio amplifier module follows the principle of hardware connection first.A successful USB connection is in USB mode, and AUX insertion is in AUX mode.If the USB is not connected and AUX is not plugged in, it is in bluetooth mode, which supports automatic reconnection.Mode toggle with mode prompt.When choosing USB audio input mode, it is important to note that USB can directly connect to the computer and other devices with USB audio output without installing a driver.USB input is lossless input, good sound quality, no interference, no noise.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong style=\"font-size: 1.4em;\"\u003eWhen the sound becomes louder, the phenomenon of turbid sound appears.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eThe sound is distorted. Please change the adapter power supply with a higher voltage rating.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong style=\"font-size: 1.4em;\"\u003eAfter the sound becomes louder, the sound is stuck.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eThe input power is insufficient, and the power supply itself is intermittently powered off. Please replace the power supply with a larger power.\u003c\/li\u003e\n\u003cli\u003eOr the output power is too large, the power amplifier board is seriously heated, and thermal protection occurs, reducing power usage or enhancing heat dissipation. \u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003e \u003c\/span\u003e\u003c\/p\u003e"}