Features:

• Three Channel or two channel power output.
  Offer record output, line output, pre-output, bass output,
  middle channel output and line output;
• Three-way input for audio and video. sound resource is
  switchable both automatically and manually.
• Five microphones input in 2 groups. The volume of each group
  can be adjusted separately, and each group provides +/- 8dB
  adjustment for treble, mediant, and bass.
• Music channel provides +/- 8dB adjustment for treble, mediant,
  and bass.
• Use DSP technology, LCD screen, SCM control.
• It's available for you to adjust the original sound, mic effect
  sound, and music signal output to left, middle, and right channel.
• It's available to reserve maximum volume and current volume.