Avalon Design VT-737SP - Channel Strip

Product #15894 | SKU VT-737SP | Avalon Design
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  • Single Channel
  • Microphone Preamp
  • Instrument DI
  • Line Input
  • Opto-Compressor


The VT-737SP from Avalon is a single-channel, vacuum tube Class-A processor that combines a tube microphone preamp, instrument DI, opto-compressor, and a 4-band parametric AEQ.

The high-performance channel strip provides incredible warmth, depth, and character to digital recordings, and is a perfect front-end for digital audio workstations and broadcast studios.


  • Vacuum tube triode signal path
  • High-performance microphone input transformer with +48V phantom power selection
  • Instrument DI high source input with front panel connector
  • High-gain switch boosts the overall gain of the preamplifier
  • Full dynamic control from soft compression to hard- knee limiting can be achieved with threshold, ratio-compression, attack and release controls
  • Special spectral control including de-ess is available with the dual sweep mid AEQ to side-chain switch
  • All discrete Class-A equaliser switchable between Pre/Post compressor
  • High- and low-frequency bands provide the smooth characteristics of an all passive design
  • Dual mid-bands include variable frequency and switched Q-width selection
  • Range of the mid-bands is extended into the high- and low-bands by the use of x10 frequency multipliers
  • Output level control provides a variable control of the overall signal path
  • Large VU metre for output level and compressor gain reduction monitoring
  • Switchable power supply


Number of Channels Single
Inputs 1 x XLR Microphone (rear)
1 x XLR Balanced Line (rear)
1 x 1/4" TS Phone Instrument (front)
Outputs 1 x XLR
Frequency Response 10Hz to 200kHz, -3dB line in to line out
Noise EIN: -116dB, 22Hz to 22kHz unweighted
Gain Range Mic Pre: 0db to 58db
Instrument: 0dB to 30 dB
Line: -27dB to 28 dB
Maximum Output +30dB
Input Impedance Not specified by manufacturer
Phantom Power +48V
Threshold Range -30dB to +20dB
Ratio 1:1 to 20:1
Attack Time 2mSec to 200mSec
Release Time 100mSec to 5Sec
Slope Not specified by manufacturer
Sidechain Internal with AEQ
Filter Type Discrete Class A, variable active and switched passive design
Frequency Bands Treble: Switched, 10kHz, 15kHz, 20kHz, 32kHz
High-Mid: Variable 200Hz to 2.8kHz or 2kHz to 28kHz (10x switch)
Low-Mid: Variable 30Hz to 450Hz or 300Hz to 4k5Hz (10x switch)
Bass: Switched, 15Hz, 30Hz, 60Hz, 150Hz
Bandwidth Treble: Shelf
High-Mid: Hi-Lo Q
Low-Mid: Hi-Lo Q
Bass: Shelf
Range (Boost/Cut) Treble: +/- 20dB
High-Mid: +/- 16dB
Low-Mid: +/- 16dB
Bass: +/- 24dB range
Specialities Sealed silver relays for signal routing

In The Box

  • Avalon Design VT-737SP - Channel Strip
  • AC Power Cable


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  • Product: Avalon Design VT-737SP - Channel Strip
  • Manufacturer: Avalon Design
  • Model: VT-737SP
  • SKU: VT-737SP
  • RM Product #: 15894

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