Suitable Audio Amplifier 5.1 Use in Original Compound and Parts, Prologic Decoder board Stereo input 2 Channel or USB or Bluetooth All Stereo Audios Output Convert in 5.1 Super Surround Sound, with Bass Treble options are available then Left, Right, Surround Left, Surround Right, center and subwoofer signal outputs are available. 24V to 35VDC