Technical Information; Specifications - Avalon VT-737SP Operation Manual

Technical
Information

10.0 Technical Information

Your Vt-737sp is built to withstand many years
of high performance music making. If you expe-
rience any malfunctions or problems, please
contact the dealer where your unit was
purchased. If your Vt-737sp has outlasted your
dealer, please contact Avalon.

Specifications

Circuit Topology: Four dual triode vacuum
tubes, high-voltage discrete Class A
Gain Range:
Microphone: Transformer balanced, 850
ohms input impedance, 0dB to+58dB
Instrument: Unbalanced 1 meg ohm
input impedance, 0dB to +30dB
Line: Balanced, 20k ohms input
impedance, -27dB to +18dB
Maximum input level and connectors:
Microphone: +16dB @ 25Hz, +30dB @
1kHz balanced XLR, pin 2 hot
Instrument: +30dB unbalanced front
panel jack socket
Line: +36dB balanced XLR, pin 2 hot
Maximum output level: +30dB balanced XLR
600 ohms output impedance, DC coupled, pure
Class A
Output type: XLR connector, output trim gain
-45dB to +10dB
Noise 20-20kHz unweighted: -92dBu
Distortion (THD, IMD) @ 1kHz: 0.5%
Unit Bandwidth: 1 to 200kHz
Frequency Response: 10 to 40kHz +/-0.2dB
VU meter and gain reduction: 0VU=+4dBu and
gain reduction to -20dB.
Avalon Vt-737sp Operation Manual
Hi-cut filter: Variable 6dB per octave 40Hz to
200Hz
Compressor type: optical passive attenuator
incorporating twin vacuum tubes and stereo
link
Compression ratio: Variable 1:1 to 20:1
Threshold: Variable -30dB to +20dB
Attack: Variable 2mS to 200 mS
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-low Q
Low Mid - variable 30Hz to 450Hz, and
3kHz to 4k5Hz, +/-16dB range, hi-low Q
Bass - switched 15Hz, 30Hz, 60Hz,
150Hz, +/-24dB range, shelf
AC power: Internal toroidal 100V to 240V,
50-60Hz selectable,
enclosed in separate steel chassis
Dimensions: 19 x 12 x 3.5 inches
482 x 305 x 89mm
Weight: 22 lbs. (10kg)
Dimensions - shipping carton:
21 x 18 x 8 inches
533 x 457 x 203 mm
Weight packed: 26 lbs. (11.8kg)
60 watts maximum,
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