Rupert Neve Designs 5025 Dual Shelford Mic Pre, Two-Channel Microphone Preamplifier, Class A input stage with specially developed transformers, Up to 72 dB gain in 6 dB steps with +/- 6 dB trim, Phase switch, 48 V phantom power, Continuously adjustable LoCut from 20 Hz to 250 Hz, Silk Red and Blue circuitry, Silk Red mode boosts harmonic content of highs and high mids, Silk Blue mode boosts harmonic content of bass and low mids, Rupert Neve custom output transformer, VU meter, Inputs: 2x XLR, Outputs: 2x XLR (line out), 2x XLR ( -6 dB out), Dimensions: 19