YEMIUGO Bluetooth 5_0 Digital Amplifier Board DC 12V 4A Audio Amp Board 20W20W Dual Channel Audio Stereo Module with AUX Input

XH-A354 is a Yamaha Digital Power Amplifier Board.It has a built-in amplifier module that can directly drive the speaker Feature: Built-in amplifier Two-channel stereo Volume adjustable Parameter: Model: XH-A354 Work Voltage: DC 12V-24V Work Current: 4A Standby Current: 80mA Controller IC: YDA138-E Output Channel: Two-channel stereo Output Power: 20W*2 Output impedance: 4ohm Work efficiency: 88% Work Temperature: -25?~85? Work Humidity: 5%~95%RH Size: 71*35*15mm Frequently Asked Questions: Why is the volume working normally when volume small, and there is a pause after increase volume? Q: Sound distortion. Reason 1:Power supply is too low. It is recommended to use a 24V power supply and make sure the input current is more than 4A. Reason 2:Speaker power is too low. It needs to connect to 20W speakers. Distorted sound or even damage to speakers if just connect 5W speaker. Package: 1pcs XH-A354 Yamaha Digital Power Amplifier Board