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B-stock

High-voltage Class A dual-transformer design

>73dB gain

Selectable microphone input impedance

Switched gain and variable fine trim controls

Microphone (XLR), instrument (1/4"), and line (XLR) inputs

Ultralow noise (-100dB S/N ratio)

Variable high-pass filter, 48V, -20dB pad, polarity invert

Analog VU and fast-acting LED metering

Input impedence:
Microphone: Selectable, 150/300/900/1500 ohm
Balanced line: 2k ohm
Instrument: 100k ohm

Maximum input level:
Microphone (1500 ohm, +20dB pad out): +5dBu
Microphone (1500 ohm, +20dB pad in): +25dBu
Balanced line: +30dBu
Instrument: +30dBu

Gain range:
Microphone (1500 ohm, +20dB pad out): +5dBu
Balanced line: -12dB to 40dB
Instrument: -5dB to 42dB
Noise floor (all inputs, minimum gain): -95dBu (A-weighted)
Microphone equivalent input noise (EIN): -125dBu (A-weighted)
Frequency response: 10Hz to 45kHz 1dB
Maximum output level: +23dBu @ 0.5% THD+N
Output impedance: 600 ohm
Tube complement (per channel): 1 - 12AT7A, 2 - 6922

General:
Power (factory-configured): 115 or 230V AC/100 watts
Dimensions: 19"W x 3-1/2"H x 17"D
Weight: 28 lbs