B-Stock, Cranborne Audio Camden EC1; studio front-end channel strip; microphone preamp with Camden preamp; linear and transparent microphone preamp; with discrete analog saturation circuit for sound coloration; Hi-Z input; headphone amplifier with independent mixes; C.A.S.T. interface; equivalent inherent noise (ON): < -129.5 dBu (150 Ohms source, unweighted); frequency response: ± 0.7 dB (<1 Hz to > 1000 kHz, 35 dB gain); phase deviation: <2.75 ° (20 Hz to 20 kHz, 40 dB gain); THD + N: <0.00025% (1 kHz, 35 dB gain, + 24 dB output); dimensions: 9,5"/1 U; weight: approx. 2,8 kg, B-Stock with full warranty, may have slight traces of use