WORKING CONDITION: Excellent. All facets of this channel strip are in excellent working order. The noise floor is low, even with the EQ boosted gratuitously. The compressor is capable of aggressive, creative drum compression or smooth LA-2A style limiting, and the direct 1/4" input is a fantastic DI for any instrument. 

PHYSICAL CONDITION: Very Good. The top of the chassis shows signs of being racked, and the finish in general shows a little discoloration from age. All knobs, buttons and parts in very good shape. 

INVENTORY #59887

BRAND: Avalon Industries

MODEL: VT-737SP 

FUNCTION: Pro Audio Channel Strip

PRODUCT DESCRIPTION: This listing is for an Avalon VT-737SP Vacuum Tube Rackmount Mic Pre EQ Compressor Channel Strip. The Avalon VT-737SP is a premium 2U rackmount mono channel strip featuring a high-voltage, discrete Pure Class A circuit topology utilizing four dual-triode vacuum tubes (6922/E88CC).

SPECS:

• Serial # 21553
• Preamplifier Section:
  • Gain Control: Continuous rotary pot with step switch (+8dB to +58dB for mic)
  • Maximum Input Level: Mic: +26dB @ 20Hz, Line: +36dB @ 20Hz, Instrument: +30dB @ 20Hz
  • Maximum Output Level: +30dB balanced @ 600 ohms (Class A discrete)
  • High-Pass Filter: Variable passive filter from 30Hz to 140Hz (6dB per octave)
  • Controls: Twin 48V phantom power switches, phase reverse, and input selector (Mic, Line, Instrument)
• Opto-Compressor Section:
  • Circuitry: Passive optical attenuator driven by dual Class A tube gain stages
  • Threshold Range: -30dB to +20dB
  • Ratio Range: 1:1 to 20:1
  • Attack / Release: Attack: 2ms to 200ms, Release: 100ms to 5 seconds
  • Sidechain EQ: Dual mid-bands from the equalizer section can be routed to the compressor sidechain for de-essing and frequency-dependent compression
• 4-Band Equalizer Section:
  • Topology: 100% discrete high-voltage Class A transistors
  • Bass (Low Freq): Passive style, high-pass shelf with selectable frequencies (30, 60, 100, 150 Hz); Boost/Cut: ±24dB
  • Low Mid Freq: Active sweepable band from 35Hz to 450Hz (with x10 switch: 350Hz to 4.5kHz); Boost/Cut: ±16dB
  • High Mid Freq: Active sweepable band from 200Hz to 2.8kHz (with x10 switch: 2kHz to 28kHz); Boost/Cut: ±16dB
  • Treble (High Freq): Passive style, low-pass shelf with selectable frequencies (10, 15, 20, 32 kHz); Boost/Cut: ±20dB

ACCESSORIES INCLUDED: Includes a power cord only. 

EXTRAS INCLUDED:

• Avalon ST-4 Kit containing (4) brand-new (Never used or installed) matched military 6922 tubes. Preamp tubes and installation instructions. ($250 New!)

UNPACKAGED WEIGHT: 23 lbs.

UNPACKAGED DIMENSIONS: 19" x 3" x 15"