1. A combined power amplifier with unique appearance. 2. Audio and video input can be switched automatically. 3. Enthusiast audio circuit makes frequency response range wider. 4. Adopt top digital reverb chip for a brand new singing experience. 5. Suitable for home theater, KTV rooms and conference rooms etc. Technical Specifications: RMS:8O/1KHz / 0.5%THD 200W THD+N:20Hz-20KHz 0.5% Frequency Response:20Hz-20KHz ± 0.2dB SNR:>100dB Input level / Impedance:BGM VCD DVD TAPE AUX : 750mV RMS 47 kO Dynamic MIC: 350mV RMS 10kO Condenser MIC: 200mV RMS 100kO Video: 1V p-p RMS 75O PER output level:Audio: 750mV RMS 47 kO Video: 1V p-p RMS 75O Reverb Delay Time:200mS MAX Supply voltage(V) :220V / 50Hz ± 10% Power Supply(W) :600W MAX