Circuit topology: 4 triode tubes (Sovtek 6922)
Gain Microphone: Transformer balanced up to +58dB
Gain Instrument:+30dB
Gain Line: -27dB to 28dB
Max input level Microphone: 26dB@25Hz, +30dB@1kHz
Max input level XLR Instrument: +30dB
Max input level unbalanced jack socket: Line +36dB
Maximum output level: +30dB balanced 600 ohms
Output gain: trim gain -45dB to 20dB
Noise 20kHz unweighted: -92dB
Noise microphone EIN: -116dB, 22Hz to 22kHz
Distortion THD, IMD: 0.5%
Frequency response: -/2.5dB: 10Hz to 120kHz
Frequency response: -3dB 1Hz to 200kHz
VU meter: illuminated OVU =+4dB and
Gain reduction: up to -20dB
High cut filter: Variable 6dB per octave 30Hz to 140Hz
Compressor type: Optical passive attenuator
Threshold - Ratio: Threshold variable -30dB to +20dB
Ratio-compression variable 1:1 to 20:1
Attack: variable 2mS to 200mS
Release: variable 100mS to 5 seconds
Equalizer type: variable active and switched passive design
Frequencies Treble: 10kHz, 15kHz, 20kHz, 32kHz, +/- 20dB
Shelf High mid: 200Hz - 2k8Hz and 2kHz to 28kHz,+/-16dB
Low mid: 30Hz to 450Hz and 300Hz to 4k5Hz, +/- 16dB
Bass: 15Hz, 30Hz, 60Hz, 150Hz, +/- 24dB range
AC power: Internal toroidal 100v to 240v, 50-60Hz, 75W
Dimensions: 19 x 12 x 3.5 in (482 x 305 x 89mm)
Weight: 22lbs (10kg)
Dimensions-shipping box: 21 x 18 x 8 in (533 x 457 x 203mm)
Weight-packed: 26lbs (11.8kg)