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Tube-Tech CL 1B MkII Compressor

Tube-Tech CL 1B MkII Compressor


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The preferred vocal compressor for pop, hip‑hop, and R&B.

Developed by Softube, the Tube-Tech CL 1B MkII plug-in for UAD hardware and UA Audio Interfaces is an update of this iconic optical compressor used by modern artists like Kanye West, Rihanna, Jennifer Lopez, and more.

Featuring numerous sonic enhancements and new high-resolution graphics, the Tube-Tech CL 1B MkII plug-in has been reimagined with Softube's latest component modeling and signal processing technology, for an even deeper emulation than before — capturing this modern classic in all its tube glory.

Now You Can:

Track and mix with an updated emulation of a modern classic compressor, fully endorsed by Tube-Tech, Denmark

Enhance transients and retain dynamics with new Parallel Compression and Sidechain Low Cut controls

Add musical-sounding compression to vocals with the same “go-to” unit preferred by Kanye West, Rihanna, and Jennifer Lopez

Dial-up weight and tube character on drums, bass, acoustic guitars, and vocals

A Modern Opto

A Modern Opto

A studio staple across a variety of genres, the Tube Tech CL 1B takes the classic warm opto compression recipe and modernizes it with selectable Fixed, Manual, or Fix/Man attack and release settings, making it useful on myriad sources. From soft and gentle massaging of a vocal to accentuating punch and snap on drums or guitars, the CL 1B's vintage/modern approach to dynamics control make it a go-to compressor for pop royalty.

Added Versatility

Added Versatility

The new Parallel Compression control lets you easily blend in compression on a drum loop or lead vocal, while the added Low Cut Sidechain feature keeps your sources punchy by keeping greedy low end away from your compression threshold.

Stylish New Graphics

Stylish New Graphics

Along with the revamped sonics and added features, now you can tweak your CL 1B MkII from a new point of view with bold high-res graphics that pop — especially on 4K or Ultra HD screens.

Key Features

An updated emulation of a modern classic opto compressor, fully authenticated by Tube-Tech, Denmark

A legendary go-to vocal compressor for major pop, R&B, and hip-hop artists from Kanye to Jennifer Lopez and more

Added flexibility with new Sidechain Low Cut and Parallel Compression controls

Updated hi-res graphics for 4K and Ultra HD screens

Customer Reviews

Tube-Tech CL 1B MkII Compressor

Overall Rating

a. de rocco

November 14, 2019

really impressive!!!! WOW!!!!!!


S. Turner

November 12, 2019

UAD has done it again

I use this compressor on my input following my 500 series rack. What can i say but "Up Front Vocals" with very minimal processing during mix down.

M. Nwankoti

October 22, 2019

Sounds uncompressed and natural!!!

Its always on my lead vocals and i love using it right before the LA 2A Gray they compliment each other so well!!

N. Tai

October 20, 2019



C. Roberts

October 7, 2019

There Are No Words to Descri...Actually

Wow! I am continually impressed with how rich in detail UAD-2 plugins keep getting. And, trust me, this one will not disappoint. Do yourself a favor and just get it already.

K. Welham

September 20, 2019


I really like this. Nice tone.

E. Mulaku

September 20, 2019

Tube-Tech CL1bMK1

I recently purchased the MK1, and now there is a MK2? These things are expensive. on top of that, i cannot re-sell the plugins. I'm not happy with this. I've spent close to thousand of dollars in plugins alone, and now i cannot resell them. I had to purchase the autotune twice? once the bad looking interface, now this.

W. Schmidl

September 20, 2019

not for Live-Rack

not for all Universal Audio hardware. Live-Rack users still have to work with a very old software and this plugin does not run. Don´t buy.

W. Schmidl

September 19, 2019

Live-Rack-Users DON´T BUY!

As Universal Audio is not updating the Live-Rack-Software for too long, this plugin doesn´t run on Live-Rack. I am very upset about this.

t. jensen

September 15, 2019

Good impression

Simple snd nice grafich.
Convenient dry/wet.

D. Myers

September 14, 2019

Great Compressor!

Clean, subtle and great for vocals. hi jock to work with and a pleasure to use. Great job UA!!


September 10, 2019

Tube-Tech CL 1B MkII Compressor

Great addition to Greatness...Sound great and do the job perfectly. Warm, nice, with nice top.
Thank UAD


September 10, 2019

Best compressor!

nice!! :)

D. Fornes Berenguer

September 4, 2019

TUBE tone 10!!

Imprescindible para las voces, en BUS para vocals, o en insert saca una calidez brutal!!

r. sveinungsen

September 3, 2019


This compressor gives a smooth and soft sound. It gives the transients a round figure in the topp end ! Not so harch sounding. Very nice...

T. Fritschi

September 2, 2019

Vocal butter

An amazing piece of software, I wish I could push it into saturation like the real one but nonetheless it is clean and does its job quite well.

K. Trakz

August 14, 2019

Way too aggressive and the GUI is too damn colossal

Compared to v1 this comp is WAY too aggressive. I don’t know what went wrong but v1 is way more smooth.

And that GUI isn’t cutting it. Sorry, but not sorry.

P. Chernyshov

August 14, 2019


magical cosmic dust for my ears!

R. Jason

August 14, 2019

CL 1B even better!

The MkII sounds more transparent, reacts quicker to transients, and is a pleasure to use. Get it!!

K. Jardine

August 13, 2019

Huge improvement!!!!!

I have been using the original for years now almost exclusively on bass guitar with amazing results, but this new update provides more detail and clarity to the compressor. Well worth the update.