ขาย [20W Bluetooth 5.0 5V 2.1 Channel Stereo Amplifier Digital AMP Board Module,20W Bluetooth 5.0 5V 2.1 Channel Stereo Amplifier Digital AMP Board Module,] ราคาที่ดีที่สุด

This power amplifier board is powered by Bluetooth 5.0 5V 3A. After secondary development by peripheral hardware, the maximum power can be configured to reach 20W: Bass 10W + sub-box 10W (5W * 2) Therefore, this power amplifier board has strict requirements on the power supply and the speaker, especially the woofer (Satellite) left and right channel sub-box speaker: select 4 Ω / 5W full-range speaker. (Please use 4 Ω and 3W for USB power supply) Woofer: Choose 3 - 4 Ω 10W-15W Woofer. Never use 6 Ω or 8 Ω woofer. (Please select 4 Ω 5W for USB power supply)