915 Generation ZKTB22 2.1 Channel Bluetooth Audio Amplifier Board with DC

Detailed Information About The Product:

Update function: new Bluetooth solution, better Bluetooth decoding effect, support TWS true wireless pairing function, support remote firmware update.
Treble & Bass and Subwoofer Controls: With subwoofer volume controls, L and R channels Treble & Bass independently controllable. Built-in low-pass filter for subwoofer with sub-frequency control, small simple compact design but practical and powerful.
Bluetooth and AUX inputs: almost compatible with all home audio devices such as smartphones, iPad, MP3, PC, CD players, etc. Enjoy acoustic surround audio with the speaker.

Model: ZK-TB22
Name: 2.1 channel 50W+50W+100W tweeter subwoofer adjustment bluetooth audio power amplifier
Power amplifier chip: TPA3116D2
Bluetooth version: 5.1
Bluetooth transmission distance: 10 meters (if you need a longer distance, please connect an external antenna yourself)
Audio input: Bluetooth+AUX
Audio output: left channel 50W + right channel 50W + subwoofer 100W
Adapter power supply: DC12-24V, ≥7A (can not be connected to AC)
Adapter speakers: left and right channels 20-50W, 4-8Ω; subwoofer 20-100W, 4-8Ω
Volume adjustment: the master volume, stereo volume, and subwoofer volume can be adjusted separately, with a wide range of adjustment; master volume with ons Single click: play/pause; double click: the song; triple click: select or cancel box matching mode
Protection mechanism: over temperature, over current, short circuit, anti-static protection
Features: 1. Support Wuzhi Audio APP. Modify the bluetooth name, pas setting, volume adjustment of prompt tone, on/off prompt tone, sleep aid, firmware upgrade, etc. 2. Box pairing function, the true wireless function enables two sets of speakers to be combined into left and right channel pairing boxes, with a stronger sense of spatial positioning.
Productsize: 121 x 100 x 26mm
color:Black
Material:PCB+Metal

Package Contents:
1 x ZK-TB22 power amplifier board
1 x DC cable

Only the above package content, other products are not included.
Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.

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