Discrete Class A circuit Carnhill transformer 80 dB gain Incremented potentiometer Tone button for switching the input impedance Switch for phase reversal Low-cut filter 4-step switchable: 50, 80, 160, 300 Hz 3-Band induction coil EQ low-band Boost/Cut: 35, 60, 110, 220 Hz Mid-band Boost/Cut: 360, 700, 1600, 3200, 4800, 7200 Hz Treble-band Boost/Cut: 10, 12, 16 kHz Additional treble band EQ points LED meter 48V Phantom power Integrated 115 / 230V power supply Build: 19" / 2 U 2 Microphone inputs: XLR 2 Line inputs: 6.3 mm jack 2 Instrument inputs: 6.3 mm jack 2 Insert inputs and outputs: 6.3 mm jack 2 Line outputs: XLR and 6.3 mm jack