Black Lion Audio B12A MKII, single channel Mic-/DI-Preamp, Mic noise floor -120 dBu, DI noise floor -102dBu, +48V phantom power, gain range Mic: + 26dB to +70dB, gain range DI: -10dB to +53dB, switchable phase, input impedance: Mic 200ohms, Line 500kohms, output impedance: 600ohms, 24 VAC external supply, Inputs: 1 x XLR, 1 x 6,3mm TRS (unbalanced), Output: 6,3mm TRS (balanced), made in USA, height: 1U, width: 9,5" (rackmountable), weight: 1.45 kg