Analog power supply12" height x 12" width x 4.5" deep Power 8/4 Ohm- 600/1000 THD - .08% S/N Ratio - 90dB In. Sen Low - 190mv In. Sen Hi - 4.2V Input Impedance- 22Kohm Variable xover, 12dB- 50-100 HzWeight - 28 lbs Width - 12" Height - 12" Cutout Width - 11" Cutout Height - 11" AC Voltage - 115/230 Switchable Xover defeat - No Phase Invert - Yes Boost - 5db@24Hz, defeatable Auto turn on/off - Yes Min load - 4 Ohm