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Avalon VT-737sp Class A Mono Tube Channel Strip  

Item #: 
1274115053799
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The Avalon VT-737sp Class A Mono Tube Channel Strip is a combination tube preamp, opto-compressor and sweep equalizer, with output level and VU metering in 2 rackspaces. Balanced mic, front-panel inst... Click To Read More About This Product

Price:
$2,4750.00
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Overview

The Avalon VT-737sp Class A Mono Tube Channel Strip is a combination tube preamp, opto-compressor and sweep equalizer, with output level and VU metering in 2 rackspaces. Balanced mic, front-panel instrument DI, and balanced line inputs. Class A preamp uses 2 cascaded, dual vacuum-tube triodes configured with minimum negative feedback. The Avalon Vt 737sp has a high-gain switch, high-pass filter, and hardwire relay bypass.

Features
  • Tube preamp
  • Opto-compressor
  • Sweep equalizer
  • Output level control
  • VU metering
  • Balanced mic input, front-panel instrument DI, and balanced line inputs
  • High-gain switch
  • High-pass filter
Specifications
  • Circuit topology: 4 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: Microphone26dB@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 to20dB
    Noise 20kHz unweighted: -92dB
    Noise microphone EIN: -116dB, 22Hz-22kHz unweighted
    Distortion THD, IMD: 0.5%
    Frequency response -2.5dB: 10Hz-120kHz input filter included
    Frequency response -3dB: 1Hz-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-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-28kHz and 2kHz -28kHz, ±6dB range, hi-lo Q Low mid - variable 30Hz-450Hz and 300Hz-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)
Warranty
MANUFACTURER'S WARRANTY
One year parts and labor warranty. 90 day warranty for tubes.


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  • Customer Reviews
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Review Snapshot

by PowerReviews
AvalonVT-737sp Class A Mono Tube Channel Strip
 
4.8

(based on 17 reviews)

Ratings Distribution

  • 5 Stars

     

    (14)

  • 4 Stars

     

    (3)

  • 3 Stars

     

    (0)

  • 2 Stars

     

    (0)

  • 1 Stars

     

    (0)

Reviewed by 17 customers

Displaying reviews 1-10

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(1 of 1 customers found this review helpful)

 
5.0

You get what you pay for

By dale de la Fuente

from ..

Comments about Avalon VT-737sp Class A Mono Tube Channel Strip:

I was in need of a new preamp and decided to go to a local guitar center just to look at what was in stock. I had been looking at the $300 ranged mic preamps that were in stock but then started looking at the avalon 737. From $300 to this was a big jump in price, but I'm glad I made the purchase. I've had the avalon 737 for about 6 months already and absolutely love it. I've used it to track hip hop and r&b vocals, but I've also used it on sax, drums, flute, clarinet, trumpet, and low brass. All I can say is that everything that was tracked using the avalon was amazingly smooth, clear, and crisp. My recordings have dramatically improved in presence and sound quality from years past with this single piece of equipment. It is well worth the price. It is built like a tank and holds the resell value very well in case you ever need to sell it later on. I would definitely recommend this.

(4 of 5 customers found this review helpful)

 
5.0

the truth

By 2dboo

from vicksburg,ms

Comments about Avalon VT-737sp Class A Mono Tube Channel Strip:

i will never buy a cheap preamp again. the avalon 737 is 4 real. get a good mic like the TLM 103 or AKG c414 and you will have the vocals you need.IF you want the sound spend the money. you are gonna waste money buying cheap mics and pre's. do it right the frist time and you want go wrong. trust me i know

(4 of 6 customers found this review helpful)

 
4.0

not so fast........................

By c.locke

from oklahoma city

Comments about Avalon VT-737sp Class A Mono Tube Channel Strip:

The avalon is alright, a lot of it is hype. I had the chance to compare it to the la 610 mkii on every level and the la610 just sounded better period. Depending on what sound your looking for, don't be fooled by the price. I feel the la610 was more cleaner, although the avalon has more eq control you have to look at the whole pic. But every piece of gear has pro & cons.

(2 of 2 customers found this review helpful)

 
5.0

Beautiful Sound at a large price

By 808 booming

from Hawai'i

Comments about Avalon VT-737sp Class A Mono Tube Channel Strip:

WARM & CLEAN...At the studio I used to work in, we would use this as the pre for almost EVERYTHING - vocals, acoustic guitar, bass, cello, violin, etc. While it's not a magic box, the difference between going direct into the board and using this is huge - like the difference between photographing in natural sunlight and under florescent lights. Not my favorite compressor, best used subtly & compressed later in the chain, but my favorite preamp of all.

(1 of 1 customers found this review helpful)

 
5.0

Big Boy Sound In A Two Space Rack

By James Greene

from California

Comments about Avalon VT-737sp Class A Mono Tube Channel Strip:

Avalon is right on the money with this one. I use the Vt737 on just about everything. I even track stereo sources with the two that I have. I guess you could argue that there are better dedicated compressors, but the one in the Vt737 is more than adequate. The clarity is superb. For your front-end you can't go wrong with the Vt737sp. If you want to sound like the big boys you need big boy equipment.

(1 of 1 customers found this review helpful)

 
5.0

Nice Preamp

By Rahbaba

from Germany

Comments about Avalon VT-737sp Class A Mono Tube Channel Strip:

Nice smooth sound. The equalizer section is very useful and musical. The compressor section is ok. If it had a limiter on it, that would help quite a bit. Overall, it imparts a very nice sound to the source audio. Oh, and I absolutely love the way a bass plugged directly into (front panel) sounds! If you can't get good sounds out of this, sell your stuff and stick to recording to cassette decks.

(1 of 1 customers found this review helpful)

 
5.0

Nothing Holds A Candle...

By Uncaster

from Los Angeles, CA

Comments about Avalon VT-737sp Class A Mono Tube Channel Strip:

The Avalon Vt 737sp is the be all end all preamp in my book... I have worked extensively with summit pres, neves pres, and even ssl stuff... nothing is a versatile and easy to use... The eq sound full and rich... the compresion is sweet and has cool ways you can feed it through the signal chain... also the natural tube distortion you can get is like nothing I've ever heard... bottom line you can't beat it... My only complaint would be it's price... I would love to buy a secound one for stereo tracking but I have to hold off because of the price... But trust me I own cheaper presonus and ART stuff... none of it holds a candle.............

(3 of 11 customers found this review helpful)

 
4.0

Good but not Great

By JVPhillyBurbs

from Philly Burbs

Comments about Avalon VT-737sp Class A Mono Tube Channel Strip:

I've been recording my vocals and a few friend's vocals with karaoke backing tracks for years now and could never figure out why I couldn't get that slick, warm professional "record" sound. So I bought one of these to see if it would do the trick. Unfortunately, it sounds about exactly the same as other methods/equipment I've tried. I have an AT 4033 mic going into a Firewire 410 and then into SONAR 5. I experimented by recording my vocals through a MACKIE CFX12 board and then simultaneously outputting one channel to the Avalon/FW and the other directly into the Firewire. Result: just about the same sound. I guess the magic is in the mixing and application of FX and double tracking, etc. Oh well, I guess I'm going to return the unit and be happy with the current front end of my recording (I also sometimes use an Aphex 107 preamp). The only real complaint I have is that the compressor didn't seem to have a limiter function. AS far as looks go, it's definitely a nice heavy duty professional looking unit but I think a lot of this "warmth" stuff is more in people's heads rather than in their ears. To be honest, I also did an A/B with the Aphex vs the Avalon and couldn't really hear any noticeable difference between the 2. Maybe this says a lot for the M-ADIO FW 410 - it sounds just as good!

(1 of 2 customers found this review helpful)

 
4.0

Cornerstone to Any Pre Collection

By Ernest Buckley

from NYV

Comments about Avalon VT-737sp Class A Mono Tube Channel Strip:

The 737 is an essential pre for any serious studio. For singer-songwriters such as myself, it is the cornerstone to my sound. The 737 is used exclusively for my vocals, acoustic guitars and bass. The EQ is 1st rate and the pre is clean and warm. My only gripe with the 737 is the compressor section which is average. When used mildly, it is fine but going past a 4:1 ratio and you start to hear it. Overall, this unit is essential for an acoustic based sound. I have also had success using it to record rap artists. The 737 is one of the more flexible units on the market today. The killer chain is the 737 and the Distressor. I own two of these units so...

(7 of 11 customers found this review helpful)

 
5.0

Avalon Vt-737... for vox, bass and snare

By Stogs

from Bellingham ,WA

Comments about Avalon VT-737sp Class A Mono Tube Channel Strip:

I have used my 737 extensively for 2 years... mostly on the Vocals but also for direct bass and sometimes snare. Easy to learn to use (my first real pre) and I have had great results. 3 cheers for Avalon!!!

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