Single-channel Class-A preamp for rackmount (1U)Fully discrete through-hole circuitCustom-wound input and output transformersStepped input gain switch in 5 dB incrementsSmooth output trim controlUnique inductor-based high-pass filter (40 Hz to 330 Hz)Built-in 1/4" DI on the front panelMicrophone input impedance: 1.2kDI input impedance: > 1MOutput impedance: < 80 ohmsGain boost: 10-60dB in 5dB stepsFrequency response: 20Hz-20kHz (±0.5dB) with 40dB gain at 600 ohm load8Hz-40kHz (±5dB) with 40dB gain at 600 ohm loadEquivalent input noise: 120dB with 40dB gain at 600 ohmsTHD+N: <0.02% at 40dB gain, loaded at 600 ohms with an output level of +18dBuCutoff filter 18dB/oct (-3dB) = 40, 55, 70, 90, 120, 150, 180, 220, 270, 330HzMax output: +27dBu (0.2% THD), +31dBu (1.5% THD)Versatile: offers both clean headroom with characteristic coloration and harmonic distortionSuitable for re-amping stems, recordings, and entire mixesDimensions: 48.3 cm (19") x 21.6 cm (8.5") x 4.4 cm (1.75")Weight: 5.9 kg