Technical Specifications Input XLR Impedance 1.3k Ohms High Z Impedance 1 Meg Ohm Panel Controls Tube Drive 0dB to +20dB Gain 3dB to +48dB Phase Reversal -20 dB Pad +48V Phantom Power 80Hz Rumble Filter Meters Blue Backlit VU Output XLR Balanced 51 Ohms Impedance 1/4" TRS Unbalanced 51 Ohms Impedance Performance THD+Noise (Unweighted) 0.05% at 0dB Tube Drive 10% at 30dB Tube Drive Noise Floor -98dB Signal To Noise >95dB Power Supply Rejection >98dB Amplifier Type Dual-Servo Power Supply Type Linear Input 16VAC/1000mA (factory configured) Power 16 Watts Physical Weight 5lbs. Dimensions 5.5 x 5.5 x 1.75 Mounting Universal Rack Tray Insert Chassis Steel Panel Brushed Aluminum Sides Cast Aluminum