If you want a Bluetooth version:
https://www.amazon.com/dp/B077GS6SC9
Operating voltage range: DC 12-25V (current 3-4A above, if the power of the larger recommended 19-24V / 4-5A above);
Audio input sensitivity: 500-800mV;
Frequency response range: 20Hz-20KHz;
Horn impedance:
Left and right channel speakers: 3.5-8 ?, woofer impedance: 2-8 ?;
Maximum output power: 50W (left channel) + 50W (right channel) + 100W (bass channel).
Package Included:
1*TPA3116 2.1 Subwoofer Amplifier Board
1*PH2.0-3P single plug shielded wire
About power selection:
24V Power Adapter:
https://www.amazon.com/dp/B076DCCDZD
https://www.amazon.com/dp/B01J19G00E
https://www.amazon.com/dp/B06Y1DTG35
The use of DC power supply, positive and negative reverse protection, positive and negative reverse connected no power.
The power supply must not be mistakenly connected to the horn's output connector. This can cause damage to the amplifier chip.
The maximum working voltage is 25V (Note: The maximum working voltage of TPA3116 power amplifier chip is 26V, do not use more than 26V).
If you use an ordinary AC transformer power supply, you must add rectifier filter before you can use it. (Note: The no-load voltage after rectification should not exceed 26V).
About power selection:
24V Power Adapter:
https://www.amazon.com/dp/B076DCCDZD
https://www.amazon.com/dp/B01J19G00E
https://www.amazon.com/dp/B06Y1DTG35
The use of DC power supply, positive and negative reverse protection, positive and negative reverse connected no power.
The power supply must not be mistakenly connected to the horn's output connector. This can cause damage to the amplifier chip.
The maximum working voltage is 25V (Note: The maximum working voltage of TPA3116 power amplifier chip is 26V, do not use more than 26V).
If you use an ordinary AC transformer power supply, you must add rectifier filter before you can use it. (Note: The no-load voltage after rectification should not exceed 26V).
