Discrete Class A circuitry from input to output (unless Tube stage In),
Gain Range: -20dB to +20dB,
Maximum Input level: +26dBu,
Frequency Response: 10Hz to 35KHz, +0, -1dB,
Distortion (THD + Noise): 0.03%, 20Hz to 40KHz,
Noise: -85dBu, 22Hz to 22KHz, @ 0dB gain at input and output.
Instrument Input:
Tube input stage, plus discrete Class A circuitry to output,
Gain Range: +8dB to +40dB (“High”), -10dB to +22dB (“Low”),
Input Impedance: 1Mohm (“High”), 70Kohm (“Low”).
High Pass Filter:
-3dB @ 90Hz, second order.

Threshold Range: -20dB to +10dB,
Ratio Range: 2:1 to 20:1,
Attack: 1ms (“Fast”), 8ms (“Slow”),
Release: 200ms (“Fast”), 2s (“Slow”),
Knee: “Hard” and “Soft” settings,
Gain Make-Up: 0dB to 20dB.

LF: +/-15dB @ 80Hz, shelving,
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Mid: +/-15dB, swept 150Hz to 7KHz, Q = 0.7,
HF: +/-15dB @ 12KHz, shelving,
“Pre” and “Sidechain” (Compressor) switches.

Discrete Class A circuitry from input to output (unless Tube stage In),
Gain Range: +16dB to +60dB (-14dB to +30dB with pad),
Maximum Input level: +10dBu (without pad), +30dB (with pad),
Frequency Response: 10Hz to 40KHz, +0, -1dB, @ 40dB gain,
Distortion (THD + Noise): 0.035%, 20Hz to 20KHz @ 40dB gain,
Noise (EIN): -127dBu unweighted, 22Hz to 22KHz, 150 ohm source termination.

Tube input stage, plus discrete Class A circuitry to output,
Gain Range: +8dB to +40dB (“High”), -10dB to +22dB (“Low”),
Input Impedance: 1Mohm (“High”), 70Kohm (“Low”).

-3dB @ 90Hz, second order

Pre Compressor and EQ,
Balanced, separate Send and Return TRS jack sockets,
Nominal Level: 0dBu,
Noise -85dBu, 22Hz to 22KHz.

Maximum Gain +15dB,

Maximum Level: +22dBu (2Kohm load), +26dBu (10Kohm load),
Noise at minimum gain: -90dBu (22Hz to 22KHz)

Typical Distortion: 1% to 10%, depending on “Drive” level, predominately
second harmonic,
Noise: -80dBu (22Hz to 22KHz), output gain @ 0dB.

Tube “Drive” LED: Variable intensity over 10dB level range, typically corresponding
to 1% to 5% THD.
Tube “Peak” LED: Dependant on level and drive, typically corresponding to 10%
THD.
Output “Peak” LED: +19dBu on output.
VU Meter: Switchable to Input, Ouput or Gain Reduction.
Nominal calibration: 0VU = +4dBu.
+10dB switch calibration: 0VU = +14dBu.

Internally set to 230V 50Hz or 115V 60Hz operation,
Detachable IEC power cord,
Power consumption 28VA.

2U, rack mounting or free-standing.
W x H x D = 483mm x 88mm x 200mm (19.0” x 7.9” x 3.5”), behind front panel