Better Music Builder DX-288 G3 900Watts CPU Integrated Professional Karaoke Mixing Amplifier DSP (Digital Signal Processing) technology customized by Better Music Builder . Dedicated 3 channels Power Output plus full array of Line Outputs which includes: record output, line output, pre-output, bass output, center channel output. 5-D PRO Audio 900 Watts Max Power. Dedicated wireless microphone connection input in 2 groups. The volume of each group can be adjusted separately, with each group provides +/- 8dB adjustment for treble, median, and bass. Independent Master and Microphone maximum volume locking. Full reverberation effects with Microphone reverb, echo, delay, and repeat adjustments.