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Avalon VT-737 Tube Channel Strip

Avalon VT-737 Tube Channel Strip

Unison Enabled


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(47 reviews)

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The larger-than-life sound of pop, hip-hop, and R&B — now on UAD.

The dominant player in chart-topping pop, hip-hop, and R&B productions, Avalon's flagship VT-737 channel strip is the best-selling standalone channel strip ever made. From Jay-Z and Dr. Dre, to Babyface and Beyonce, to Eric Clapton and The Rolling Stones, the VT-737 delivers consistently polished results, with radio-ready gloss and detail.

Exclusively for UAD hardware and UA Audio Interfaces, and fully endorsed by Avalon Design, the Avalon VT-737 Tube Channel Strip plug-in captures the entire hit-making essence of the channel strip that defined the sound of modern music.

Now You Can:

Track and mix through an exacting emulation of the Avalon VT‑737 analog channel strip

Get the full character of the original hardware’s tube mic preamp with Unison technology

Add legendary Avalon gloss and presence to bass, vocals, voice‑over, and more

Sculpt your sources with a vocal‑flattering optical compressor

Tweak sounds with four-band EQ and add high‑end detail with 32k "air" band

Mix with artist presets from Eric J Dubowsky, (Flume, Odesza), Hector Delgado (A$AP Rocky, Lana Del Rey), Michael Brauer (Coldplay, My Morning Jacket), and more

Take a Listen

Take a Listen
Capturing the Sound of Modern Music

Capturing the Sound of Modern Music

After carefully auditioning multiple Avalon 737 hardware units, the UA team selected a "golden unit" with the ideal optical compression response. UA's DSP team then artfully captured the target hardware's class-A tube amplifier section with custom-wound transformer, LED-style optical compression, and discrete four-band EQ — the signature Avalon sound heard on thousands of chart-topping hits.

Unison<sup>™</sup> Technology for UA Audio Interfaces

Unison Technology for UA Audio Interfaces

Harnessing UA’s groundbreaking Unison technology, the Avalon VT-737 plug-in captures the hardware’s mic preamp impedance, gain stage “sweet spots,” and exact circuit behaviors, giving you all the detailed sonics of the original Avalon hardware — including its gentle high-pass filter for removing mud and low-end gunk. And because the VT-737's front-panel Hi-Z input is a legendary bass DI, the VT-737 plug-in's Unison-enabled Hi-Z input endured rigorous evaluation, ensuring it was virtually indistinguishable from the original hardware.

Versatile Optical Compression

Versatile Optical Compression

Excelling on vocals, bass, acoustic guitar, and voice-over work, the VT-737 plug-in's dynamics section emulates the hardware's gentle touch, rather than adding squash or crunch. Its relatively transparent compression also make it perfect for "stacking" the compressor again at mixdown, expertly controlling the dynamics of a vocal in a dense mix. An exclusive plug-in only, super-fast mode gives you “X4” faster attack, pushing the VT-737 beyond its physical limits, affording you tons of new dynamic versatility.

EQ with Details

EQ with Details

The Avalon VT-737 Tube Channel Strip plug-in expertly emulates the hardware's discrete four-band EQ, allowing you to sculpt lead vocals with a visceral, larger-than-life presence and sophistication, placing them front-and-center in any mix. Like the hardware, the EQ can easily be placed before or after the compressor, and the mid bands can be engaged as sidechain filters for laser-focused compression. And with the 32k high frequency "air band," you can add delicate shimmer to everything from strings to background vocals to acoustic guitars.

Add Chart-Topping Sheen with Any UAD Hardware

Add Chart-Topping Sheen with Any UAD Hardware

Of course, the Avalon VT-737 Tube Channel Strip isn’t just for UA Audio Interface owners. UAD hardware owners can use the VT-737 Tube Channel Strip plug-in on any mix, giving your sources legendary fat bottom, "glassy" top-end textures, and a bevy of clear-eyed color — without ever going outside the box.

Key Features

VT-737sp exclusively licensed by Avalon Design, modeled by Universal Audio

Made famous as the ultimate pop, R&B and hip-hop performance and production tool specializing in tight, focused vocals and bass guitar

Best of Avalon's design: high headroom tube mic preamp, optical compressor, and discrete four-band EQ

Feedback-style 58 dB tube mic preamp with Mic, Line, or Hi-Z input with Unison technology

Models entire VT-737sp “Special Performance” circuit path, including transformers, tube amplifiers, active and passive EQ filters, and optical gain reduction

Compressor Sidechain Unlink/Link and EQ Pre-Dynamics, EQ Sidechain filtering, Hi Q and Frequency multiplier

Physical input impedance and front panel control of gain staging and other preamp parameters via Unison

Customer Reviews

Avalon VT-737 Tube Channel Strip

Overall Rating

(47 reviews)

C. Yang

December 12, 2019

Good sound

Very Similar to real gear.
good sound, clarity

L. Roccatagliati

December 12, 2019


I used Avalon both for mixing drums in a track, and also recording my flute... amazing versatility.
Love it!

K. Copeland

December 11, 2019

The bomb

This thing will give your voice the highs of Geoff Tate and the growl of Ronnie James Dio! Can’t sing you say? No prob. Just plug this SOB in and your an instant pro. It will improve your guitar skills and turn your girlfriend into a supermodel. Just buy it


December 11, 2019

AVALON Vt 737 MIX Magic!!!

Have had the original AVALON with the purple knobs since it's inception. Added new JJ Gold tubes and it sounds better than brand new. Kept asking UAD for this model and it's excellent!! Recorded the same song twice once using all analog pre amp's. Once in the box ( on Mac ) using Unison. Very small differences , I love the amount of instances for the mix. Many discerning ears could not differentiate the two mixes. Thanks a real keeper in the UAD arsenal. The presets are another add on for me I always just used my ears , but then I rode Dinosaurs to school . lol

W. Welmixpro

December 11, 2019



P. Pendlebury

December 10, 2019


Great sound and GUI. Just like the original. Very desirable hardware and now we can use it as many times as we want, in the box.

S. McClure

December 9, 2019

Killer Bass Must Have Plugin

Love it! Always wanted to have a Avalon for my studio, and thanks to UA I have one! Very punchy, clean, responsive. Definitely one of the best purchases made this year!
Thanks UA

H. Ataka

December 8, 2019

There is no choice but to buy

This has never been before!

r. duhaubois

December 8, 2019

Fidèle a lui meme!!!

Genial!!! Fidèle au hardware!!!

A. Wilhelm

December 7, 2019

The best Channelstrip you can buy

This Channelstrip is amazing - perfect Sound *****

C. Young

December 6, 2019

Must have!

All I can say is WOW!

D. Rogers

December 6, 2019

Game Changer

This is a great channel strip the Avalon VT-737 is one of the most sought out pieces of gear and you will find it in almost every major studio I don't own the hardware piece but have used it in the past and this plugin is darn close so transparent I love it I use it mainly on vocals but a great weapon to have in your arsenal.

B. Schulz

December 4, 2019

This is the real deal

Very very musical compressor, an eq that seems to be made to make tracks fit into the song context and a preamp that improves every sound source. This is a valuable plugin that really makes a difference. Thank you very much!

J. Moore

December 4, 2019


IM IN LOVE!!! UA HAS DID IT AGAIN! Man this plugin sound so much like the original and the vocals are so clean! I mean I used it within my mix on drums and it’s killer!!!! WHEW!!!

D. Warren

December 4, 2019


Not the analog version but a very close second!

А. Лозовец

December 4, 2019

Лампа - есть лампа!


H. Way

December 3, 2019

I Welcomed This Plug-in!

I have been hearing a lot about this channel strip for years! What an awesome addition to the UA line up. This plugin definitely filled in the whole for the Gospel, R&B, Rap, and Hip/Hop Genre! Goo move UA!

S. Teaca

December 3, 2019

Avalon VT-737

For me Best software EQ for vocal.It can be pressed hard, but it still sounds very musical !

G. Ramsey

December 3, 2019

Perfect Emulation, well done uad

The opto-compressor and sweep equalizer emulations are 99% the original unit.
I gave uad 10/10.

A. Norris

December 2, 2019

Real Vs the Plug

It was sort of romantic to see my AV737SP appear on the latest update of UA-2 plugs. I have run a matched pair since 1997 and love the timbre these units provide. Whilst the +10dB gain boost to the valve-stage embeds some greater "velvet" than the plug I am very happy the "Baby-Face Mod" has been included in the software.
I had my units modified many years ago to multiply the compressor attack time by 4, making the units far more versatile than the stock fastest time of approx' 2 ms.
Love this company's attention to detail - Congrats UA.