| Circuit topology |
Four dual triode vacuum tubes (Sovtek 6922), high-voltage discrete Class A |
| Gain Range |
Microphone: Transformer balanced 850/2500 ohm, 0dB to +58dB
Instrument: Unbalanced 1 meg ohm, 0dB to+30dB
Line: Balanced Class A 20k ohms, -27dB to 28dB |
| Maximum input level and connector types |
Microphone: 26dB@25Hz, +30dB@1kHz balanced XLR
Instrument+30dB unbalanced front panel jack socket
Line +36dB balanced XLR |
| Maximum output level |
+30dB balanced 600 ohms, DC coupled, discrete Class A |
| Output type and gain |
XLR connector, output trim gain -45dB to 20dB |
| Noise 20kHz unweighted |
-92dB |
| Noise microphone EIN |
-116dB, 22Hz to 22kHz unweighted |
| Distortion THD, IMD |
0.5% |
| Frequency response -/2.5dB |
10Hz to 120kHz input filter included |
| Frequency response -3dB |
1Hz to 200kHz line in-out |
| VU meter and gain reduction |
High quality illuminated OVU =+4dB and gain reduction to -20dB |
| High cut filter |
Variable 6dB per octave 30Hz to 140Hz |
| Compressor type |
Optical passive attenuator incorporating twin vacuum tubes and stereo link |
| Threshold - Ratio |
Threshold variable -30dB to +20dB, ratio-compression variable 1:1 to 20:1 |
| Attack - Release |
Attack variable 2mS to 200mS, release variable 100mS to 5 seconds |
| Equalizer type |
Discrete Class A, variable active and switched passive design |
| Frequency bands (4) |
Treble - switched 10kHz, 15kHz, 20kHz, 32kHz, +/- 20dB range, shelf
High mid - variable 200Hz to 2k8Hz and 2kHz to 28kHz, +/- 16dB range, hi-lo Q
Low mid - variable 30Hz to 450Hz and 300Hz to 4k5Hz, +/- 16dB range, hi-lo Q
Bass - switched 15Hz, 30Hz, 60Hz, 150Hz, +/- 24dB range, shelf |
| AC power |
Internal toroidal 100v to 240v, 50-60Hz selectable, 75 watts maximum |
| Dimensions |
19 x 12 x 3.5 in (482 x 305 x 89mm) |
| Weight |
22lbs (10kg) |
