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Studio & Recording > Preamps > Channel Strips > Avalon VT-737sp

Avalon VT-737sp

Item ID: VT737SP

Tube Microphone / Instrument Preamplifier, Opto-compressor, and Sweep Equalizer

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From Our Research Team:

The Ultimate In Mic Pre Performance and Control!

The VT-737sp brings its magic touch to everything in your studio. Run your dullest, most sterile mic through the VT-737sp and you'll be amazed at how warm and sweet it sounds. This 2-rackspace combo brings a new standard to high-end audio, taking your sound to places you never thought possible and giving you precise creative control. The VT-737 will energize your recordings!

Avalon VT-737sp Channel Strip at a Glance:
  • Class A preamp design with three input selections
  • Opto-compressor with minimum signal path
  • Sweepable EQ and hardwired bypass

Class A preamp design with three input selections
The VT-737sp has three input selections: First, it features a higher-performance microphone input transformer with 48-volt phantom selection. Second, the VT-737sp offers an instrument DI high-source input with a jack located on front panel. Finally, the VT-737sp includes a balanced line input with discrete high-level Class A circuitry. The Class A preamplifier utilizes two cascaded, dual vacuum tube triodes configured with minimum negative feedback. A high-gain switch boosts the overall gain of the preamplifier. The four high-quality tubes are configured as singled-ended anode coupled followers. A passive/variable highpass filter and hardwired relay bypass completes the VT-737sp's input signal conditioning. A phase reverse relay is available on all three inputs.

Opto-compressor with minimum signal path
The VT-737sp's opto-compressor features a minimum signal path design with twin Class A vacuum tube triodes for gain matching. The optical attenuator acts as a simple passive level controller. Full dynamic control from soft compression to hard- knee limiting can be achieved with threshold, ratio-compression, attack and release controls plus gain reduction selection on the large VU meter. Special spectral control including de-ess is available with the dual sweep mid EQ to side-chain switch. The VT-737sp's EQ section can be flipped pre or post the opto-compressor via a front-panel switch for alternate effects and tone shaping. Two VT-737sps can be linked via a rear panel link cable for stereo tracking. The compressor bypass is a sealed silver relay for the most direct signal path.

Sweepable EQ and hardwired bypass
The VT-737sp equalizer utilizes 100% discrete, Class A-high-voltage transistors for optimum sonic performance. The high- and low-frequency bands provide the smooth characteristics of an all passive design, while the dual mid bands include variable frequency and switched Q-width selection. The enhanced range of the VT-737sp's mid bands is extended into the high and low bands by the use of X10 frequency multipliers. The bypass switch incorporates a sealed silver relay for the most direct signal path. When the EQ to sidechain is engaged, the high-low EQ remains in the audio path for "tone enhancement." The output level control provides a variable control of the overall signal path. The output amplifier utilizes another dual triode vacuum tube driving a 100% discrete, Class A, high-current, balanced and DC coupled low noise output amplifier.

Avalon VT-737sp Channel Strip Features:
  • Vacuum tube and discrete design
  • Ideal for DAW and digital recording
  • Wide range of tube tone and control
  • Excellent value for performance
  • Rugged Avalon construction

The Avalon VT-737 - Let your mics perform better than they ever have before!
Specification Detail
Preamp Type Tube
Number of Channels 1
Frequency Response 10Hz-120kHz
Phantom Power Yes
EQ Yes
Compressor Yes
Other Processing No Other Processing
Analog Inputs 1 x XLR (Mic), 1 x XLR (Line), 1 x 1/4" (Hi-Z)
Analog Outputs 1 x 1/4"
Digital Inputs No Digital Inputs
Digital Outputs No Digital Outputs
Other I/O No Other I/O
Computer Connectivity No Computer Connectivity
Rackmount Spaces 2U
Height 3.5"
Depth 12"
Width 19"
Weight 22 lbs.
Manufacturer Part Number VT-737SP

VT-737sp Image Gallery

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Outrageous job guys! It was a perfect order. My guitar arrived ready out of the box and tuned, cleaned, etc. Thanks a million. I have found the place to do my future buying. The prices are great and the service is second to none. Excellent service!


James, Phoenix, AZ

Reviews

based on 24 reviews

my second 737

by Ernesto arroyo from compton ca usa
September 28, 2012
Music Background: pro musician,rec engineer
i tried manley vary mu, but not, i'm getting my second 737.and i am using it for 2 buss can you believe it. better results than vary mu cause 737 has world best eq.

Just The Best

by GaryMusic from Dearborn MI
May 25, 2010
Music Background: Musician, Songwriter
I can't say enough good things about the Avalon. I purchased two. The first many years ago and loved it so much as it just made anything I passed through it. Best DI for Bass I have ever heard. S... read more [+]o smooth and full. Great vocal mic pre. The EQ section is great. I use the the two Avalons at mix down as external plugins in Cubase 5. Really works on everything very well. close [-]

My baby

by Edison Munoz from Medellin
March 17, 2009
Music Background: Music Producer
With any intrument or vocal it soung with any other!!!

A WORLD STANDARD

by Bigtyme 175 from New Jersey
December 23, 2008
Music Background: Hobbyist, Student
This thing is like hot chocolate on a cold winter night it just warms everything that passes thru it,if you are considering purchasing this unit then look no further your LORD & SAVIOR IS HERE !.

Sweetwater Advice

Mike Conyers
The Avalon! It's simply impossible to go wrong with this piece; I've used it for hip-hop vocals, acoustic guitar, rock singing, and more! This is a channel strip that will never fall out of use in your studio, I guarantee it!
Read more reviews

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See Also: Avalon , Avalon Channel Strips

Avalon VT-737sp

Today's Payment: $927.00
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Payment 2: $666.50
In approx. 30 days
Payment 3: $666.50
In approx. 60 days

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