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

J. Brown

July 4, 2021

Origin owner

I have a vintage_ 1st model. You really cant judge an emulation correctly without understanding/having material comparison. So close if used correct

D. Murphy

July 1, 2021

Wonderful channel strip.

Love how easy it is to get a clean modern sound. Really smooth.

A. Lopes dos Santos

June 20, 2021

Sweet and Powerful

I really didn’t think I would need another channel strip - until I heard what the Avalon could do to the lows and the mid-high frequencies of anything you pass throught it. It became an integral part of all my basses and almost all my vocals. Simple to use, sweet and powerful sounding. Beautiful.

K. Matzafleris

June 15, 2021

An Amazing tone mic pre

A new boutique UAD plugin that gives me a choice of tonal signal on my recording tracks on voices and any accustic instrument. It gives me a tonal character with clarity, musical energetic musical sound that it's so versatile that it's one Channel Strip mic pre that must have as a first choice for everything. Universal Audio you really created an unbelievable emulation compared to the hardware unit that sounds identical. It's deminantelly a musical box that sounds like thousands of dollars.

L. Tian Siung

June 8, 2021

Must Have

Top notch!

c. jones

May 29, 2021

Best plugin period

The coloration and smoothness this thing delivers is mind blowing. I've tried alot of the preamps but when I tried the demo on this thing I had to purchase . With the levels hitting at the right levels don't really need eq or comp with the many options this thing has

h. dayani

May 25, 2021

smooth sounding

Give that smooth and clear sounding vocal i absolutely love it

h. dayani

May 25, 2021


loving this avalon very smooth sounding really give that smooth and clear sound to vocals

h. dayani

May 25, 2021


loving this avalon very smooth sounding really give that smooth and clear sound to vocals

j. aguilo berrios

May 20, 2021

Love it

Easy, Vocals in ur face from the first moment!

L. Benson

May 18, 2021

Great Preamp

The Avalon Tube strip gives tube character and saturation with clarity. The smoothness and the way it helps things sit, especially with vocals and acoustic guitars. Works great as a mixing plugin but really shines in the Unison slot.

R. Castillo

May 12, 2021



D. Neblett

May 8, 2021


Smooth is the best word for this mic pre! Smooth compression, smooth high end and smooth sound.. love it! I would still love to try the real unit but for now.. this is perfect!!

E. Wells

May 6, 2021

Make your tracks shine

Wanted to try this out on prerecorded material since most only talk about it as a Unison plugin.
Could not believe the difference it makes on existing vocal tracks a definite winner.

Love this plugin.

R. Neville

May 4, 2021

Owned the hardware

Sounds pretty identical to the actual hardware unit.

e. sanchez

May 3, 2021


Es excelente suena muy parecido al hardware. Ideal para poner en la entrada y grabar con la calidad y sonido final

Y. Chou

April 29, 2021

Just Beautiful

Makes a 500 dollar acoustic sounds like 5000 dollars. Just delicious to the ears.

A. Tkachenko

April 20, 2021

Wow Preamp Avalon is the best

This Avalon preamp is so good. I’m dreaming about it

V. Arnold

April 19, 2021

Silky smooth

Finally decided to pull the trigger and try this. For hip-hop and R&B vocals it's an instant go-to unison plugin. I don't even use the onboard compressor or EQ much, the gain stage alone is more than enough.

S. Crewe

April 14, 2021

Absolutely stacks up against the hardware!

I've used the hardware VT-737sp to record a number of albums, over the years. Even after only a very short period of using the UAD version, I can absolutely tell you that this stacks up alongside the hardware version. The smooth dynamic control, that sweet EQ - it's all there. 100% worth the buy!