Master Output: 600 Watts 4 Ohms - With USB 2.0 Terminal and MP3 LCD Display - 5-Band Graphic Equalizer * Each Channel Tone Control - Effect Control - Tape Input, REC Output * Channel Tone Adjust (high/low+/-15dB) - AUX/TAPE/Effect Feedback Input - Effect Send * Master Volume Control - Phantom + 15V * 110/220 Voltage Switchable - Dimension: 17.32"" x 12.01"" x 7.87""