Avalon VT-737 Tube Channel Strip

Avalon VT-737 Tube Channel Strip

Unison Enabled


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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

C. Davies

February 27, 2020


I got this plugin with an Octo Satellite
I’m not too familiar with this one, but so far it’s improved the sound quality of my guitar recording for the better
Well done UA team

C. Davies

February 27, 2020


I got this plugin with an Octo Satellite
I’m not too familiar with this one, but so far it’s improved the sound quality of my guitar recording for the better
Well done UA team

P. Moshay

February 27, 2020

A must have for Vocals ++

I have owned the 737 since it was first introduced and have used it on nearly every recording i have ever done, so i know this unit intimately. I have found that every detail is in this plugin as i have used it in exactly the same manner i use my hardware units. Its incredible to be able to have this as a plug in for after the fact treatment of tracks..... its a MUST HAVE for me! Kill on bass & AC guitars too!

P. Lallis

February 26, 2020

Amazing Avalon

Can't say much.
If you know how to use it then it does the job 4 you.

A. Blight

February 25, 2020



J. Harris

February 20, 2020

I’ll be putting it on EVERYTHING! Yes EVERYTHING!

For those of us that wants that crystal sound but didn’t necessarily have the $2000 to put down on it, or wanted to be able to carry that sound anywhere, or both...lol This is the answer. Sure it might not be the EXACT same as some may say. But to have anything close to that 737 sound at $300!?!?! I’ll take it. Plus it’s not all about the equipment, but the people who use it. Can’t wait to cut songs for clients.

V. Medvedev

February 19, 2020

My favourite colour

One of the best tools from UAD. Great for all kind of stuff & my favourite vocal channel strip !

J. Assink

February 18, 2020

Really has a place next to the Neve and other classics

It’s very easy to go for the API or Neve preamps but for my piano and acoustic guitar recordings, I prefer this one. Excellent

P. Riese

February 17, 2020

Wonderbar :-)

I have the original as one of the last ones of a bunch of channel-strips in my studio and now, here is the reason to sell this one also. The emulation makes what the original does and now i can save presets for different singers ans use more than one unit. That´s a dream come true:-). Go...grab it!

M. Seitz

February 15, 2020


I know the Avalon from my own studio experience.
Tweak, record..done!
Really Nice!!

P. Moonsoo

February 15, 2020

Overwhelming quality.

I did a demo
I paid immediately after 15 days.
Too good quality
I use it for all my recent work.
On my youtube channel
Hangul Lecture was uploaded.


I always trust and respect UAD.

More cool products
As a plug-in
Please release it.

Y. Larkins

February 14, 2020

I like so far

Can't say enough about this great plugin this will get lots of use

Y. H

February 14, 2020


great plugin

J. Rosenthal

February 13, 2020

Great for the U87

I use it together with a Neumann U87 Ai and i like it a lot.


February 13, 2020


Exactly what my Nueman Tlm-102 needed. Excellent for adding that pro sheen to your tracks.

H. HeadSpot

February 13, 2020

I am so excited

When Dreams Come true. I like the vox box, but this is my new fav recording voices . I cant compare with the hardware precisely but recording is pretty close to me as far as I remember. Thank you for your work UAD Team!

L. Quinn

February 12, 2020

just as good as the hardware

I have 1 Neumann 103 connected to a hardware 737
Sounds great on vocals and acoustic guitar with either 737

M. Jiaras

February 8, 2020

love it. I am going to sell my 737 hardware.

I have owned two Avalon Vt737sp's for 20 years and they used to be my front and on virtually everything. The hardware has been used only occasionally for the last few years in favor of UAD pre's as the front end with various plug ins. The UAD Avalon VT-737 Tube Channel Strip is fantastic. I am going to sell my 737 hardware.

R. Vallenari

February 8, 2020


The air and the Deep lows it adds it's magic. I use it on everything,even masters

UAD User

February 6, 2020

Great on everything !

I own 2 of the hardware versions of this, and they are fantastic. But now I can put it in just about everything. The EQ is soooo sweet !