DollaTek Bluetooth 5.0 Amplifier Board 20W 30W 40W Stereo Module Dual Channel Wireless Digital Audio Receiver with Remote Control and Acrylic Case for DIY

Characteristics: stereo Dual channel output Suitable for many speaker types Volume adjustable support remote control Bluetooth 5.0 Support reverse polarity protection Support short-circuit protection overheating protection for self-restoration Output power (at 1KHz) 12V 4Ω: 20W× 2 16V 4Ω: 30W× 2 21V 8Ω: 30W× 2 24V 8Ω: 40W× 2 Note： 1. When the power supply voltage is relatively low and the output power is relatively large, there may be a little noise, which can be solved by reducing the volume or increasing the power supply voltage. 2. When using the power amplifier board, try to stay away from the WIFI signal. 3. It is recommended that the power supply voltage be 5~24V DC, more than 26V, the chip will burn out. 4. When connecting a 4Ω speaker, the power supply should not exceed 16V. When the 8Ω speaker is connected, the power supply should not exceed 24V. 5. The speaker cable should not be too long, it is recommended to be within 1 meter. Package: 1 x stereo Bluetooth power amplifier module 1 x remote control 2 x acrylic shell 4 x copper pillar 8 x screw