Heritage Audio HA-73 X2 Elite, Two-Channel Microphone Preamp, Based on the 1073, Hand-wound Carnhill transformers, Completely discreet, three-stage microphone preamp, Amplification: 80 dB microphone and 50 dB line, -20 dB pad, LO-Z for switching the input impedance from 1200 to 300 Ohm, HP filter at 80 Hz, 2 XLR microphone inputs, 2 XLR line inputs, 2 XLR line outputs (L/R), 2 Instrument inputs. 6.3 mm jack, Switchable 48V phantom power, External power supply included, Build: 19