Focusrite ISA Two - 2-channel preamp, Lundahl LL1538 mic input transformer, Variable input impedance, Up to 80 dB of gain, Variable cut-off high-pass filter, 2x Mic In XLR, 2x Line-In 1/4" TR, 2x Instrument In 1/4" TR, Insert, Line output XLR, switchable impedance, LED meter, 48V phantom power, 19" 1HE