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ZK-AS21 2.1CH TPA3255 Bluetooth Digital audio Power Amplifier Board 220WX2+350W

Product Feature
1: Wide range of applications
2: The appearance is simple and beautiful
3: APP has comprehensive functions
4: Real stepless tuning, not digital multi-stage grading adjustment.
5: The mechanical switch can be turned off with one turn, no need to wait for a long time, which is convenient and fast.
 
Product name: 2.1 channel bluetooth audio power amplifier module Product model: ZK-AS21
Number of channels: 2.1 channels (left channel + right channel + subwoofer)
Input method: AUX+Bluetooth+U disk+USB sound card (dial button to switch modes and songs)
Bluetooth version: 5.1
Power amplifier chip: TPA3255
Adapter speakers: left and right channels 30-220W, 3-8Ω subwoofer 30-350W 2-8Ω
Output power: left and right channels ≤ 220w subwoofer ≤ 350W
Adapter power supply: DC 16-38V ≥10A
Protection mechanism: anti-reverse connection, undervoltage, overheating, overcurrent, short circuit protection (automatic recovery, no need to restart)
Switch mode: mechanical switch (no need to long press and wait)
Voltage gain: 30dB
Product weight: net weight 346g, including packaging 408g
Product size: 141*131*27mm
Tip: Only when the audio signal input is large enough and the power supply voltage/current is large enough, will there be enough output power!
The higher the power supply voltage, the greater the output power, and the smaller the speaker impedance, the greater the output power!
Please make sure that the power of the adapted power supply is greater than the actual working power of the power amplifier!
 
list
1* 2.1 channel TPA3255 Bluetooth digital power amplifier board module

1.We only ship to the confirmed address provided by eBay. please make sure your ebay address is 100% matches the address you would like us to ship to. If not, please let us know before we sent you the package, or we will not be responsible for any loss. hope you could understand.

2.Orders will be processed instantly and dispatched within 1-2 business days except hoilday, so we do NOT accept any email/message note after you place orders.

3.All package need to wait 30 days,Please take care it.Less than 30 days,we can't take a refund.

1.We greatly appreciate your POSITIVE feedback. Please do NOT leave negative feedback without asking for help.

2.Please DON'T leave negative or neutral feedback if you haven't received item in 30 days, because we have mentioned the shipping time repeatedly.

1.We accept PayPal payment ONLY, and must be received within 5 days from the date of purchase.

2. It is easy and safe for you to pay by credit cards, debit cards, bank transfers and PayPal account balances.

3.Buyers are responsible for import duties,custom fees and taxes, if any, please check your country.

 

1.We believe our items are so outstanding. We are convinced you will be happy with your Purchase.

2. If you do not satisfy with our items. Please simply return to us within 30 Days in original condition. Just pay for the returned postage. Then we can issue full refund or resend the item to you after the returned item arrived at our warehouse.

3. Please include your eBay ID and item number with any email requests.

 

1. If you have any questions, please feel free to email our service specialists.

2.Just contact us using the " Ask the seller a question" link on eBay.

3.Our aim is to provide Top Level Customer Service, normally so we will try our best to solve any problem.

ZK-AS21 2.1CH TPA3255 Bluetooth Digital audio Power Amplifier Board 220WX2+350W
Product Feature
1: Wide range of applications
2: The appearance is simple and beautiful
3: APP has comprehensive functions
4: Real stepless tuning, not digital multi-stage grading adjustment.
5: The mechanical switch can be turned off with one turn, no need to wait for a long time, which is convenient and fast.
 
Product name: 2.1 channel bluetooth audio power amplifier module Product model: ZK-AS21
Number of channels: 2.1 channels (left channel + right channel + subwoofer)
Input method: AUX+Bluetooth+U disk+USB sound card (dial button to switch modes and songs)
Bluetooth version: 5.1
Power amplifier chip: TPA3255
Adapter speakers: left and right channels 30-220W, 3-8Ω subwoofer 30-350W 2-8Ω
Output power: left and right channels ≤ 220w subwoofer ≤ 350W
Adapter power supply: DC 16-38V ≥10A
Protection mechanism: anti-reverse connection, undervoltage, overheating, overcurrent, short circuit protection (automatic recovery, no need to restart)
Switch mode: mechanical switch (no need to long press and wait)
Voltage gain: 30dB
Product weight: net weight 346g, including packaging 408g
Product size: 141*131*27mm
Tip: Only when the audio signal input is large enough and the power supply voltage/current is large enough, will there be enough output power!
The higher the power supply voltage, the greater the output power, and the smaller the speaker impedance, the greater the output power!
Please make sure that the power of the adapted power supply is greater than the actual working power of the power amplifier!
 
list
1* 2.1 channel TPA3255 Bluetooth digital power amplifier board module

1.We only ship to the confirmed address provided by eBay. please make sure your ebay address is 100% matches the address you would like us to ship to. If not, please let us know before we sent you the package, or we will not be responsible for any loss. hope you could understand.

2.Orders will be processed instantly and dispatched within 1-2 business days except hoilday, so we do NOT accept any email/message note after you place orders.

3.All package need to wait 30 days,Please take care it.Less than 30 days,we can't take a refund.

1.We greatly appreciate your POSITIVE feedback. Please do NOT leave negative feedback without asking for help.

2.Please DON'T leave negative or neutral feedback if you haven't received item in 30 days, because we have mentioned the shipping time repeatedly.

1.We accept PayPal payment ONLY, and must be received within 5 days from the date of purchase.

2. It is easy and safe for you to pay by credit cards, debit cards, bank transfers and PayPal account balances.

3.Buyers are responsible for import duties,custom fees and taxes, if any, please check your country.

 

1.We believe our items are so outstanding. We are convinced you will be happy with your Purchase.

2. If you do not satisfy with our items. Please simply return to us within 30 Days in original condition. Just pay for the returned postage. Then we can issue full refund or resend the item to you after the returned item arrived at our warehouse.

3. Please include your eBay ID and item number with any email requests.

 

1. If you have any questions, please feel free to email our service specialists.

2.Just contact us using the " Ask the seller a question" link on eBay.

3.Our aim is to provide Top Level Customer Service, normally so we will try our best to solve any problem.

Am 06.06.2022 hat der Verkäufer die folgenden Angaben hinzugefügt:

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