B-Stock, Black Lion Audio Auteur Preamp, 2 channel mic pre, +48V phantom power, switchabel -10 dB pad, phase switch, gain: 0-66dB, THD+Noise -110dB @ 1 kHz, headroom 27dB, input impedance 8kOhms, output impedance 600 ohms, input connection XLR, output connection TRS, power 24VAC external supply, dimensions: 9,5" (half 19") 1U, B-Stock with full warranty, may have slight traces of use