Softube Tube-Tech CL 1B Plug-in

Modeled Compressor Plug-in for Native Systems - Mac/PC AAX, VST, VST3, AU
Softube Tube-Tech CL 1B Plug-in image 1
Softube Tube-Tech CL 1B Plug-in image 1
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Compatible with:


Software Compatibility

Most software is compatible with both Mac and Windows computers, but check to make sure.

If you're using Pro Tools, AAX plug-ins (or RTAS for older versions) are what you need. Most other Mac DAWs support AU plug-ins. VST is compatible with a number of Mac and Windows programs. Be sure you choose plug-ins that work with your DAW!

To learn more about software compatibility, check out our buying guide.

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Softube Tube-Tech CL 1B Plug-in
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A Tube-driven Legend in Plug-in Form

NOTE: This product requires that you have an iLok account for authorization, although it does not require a physical iLok key. Please call your Sweetwater Sales Engineer if you have questions.

With the release of the the Tube-Tech CL 1B plug-in, emulation is being redefined by Tube-Tech and Softube. The CL 1B plug-in is based upon highly advanced patented component emulation technology, and brings the legendary analogue sound of the CL 1B compressor/limiter to the native plug-in platforms. The CL 1B plug-in provides up to 30dB of gain and a continuously variable threshold ranging from 2.1 to 10.1. For amazingly smooth, rich compression, the CL 1B is a great choice.

Softube Tube-Tech CL 1B Plug-in at a Glance:
  • Responds just like the hardware box
  • Great sound
Responds just like the hardware box

The CL 1B features innovative attack/release controls, with three different settings, enabling the CL 1B to be used as an insert- or bus compressor. The Sidechain/Link button in the stereo instance of the CL 1B plug-in emulates the dynamic master/slave relationship between the left and right channels, a feature usually found when having two units interconnected via the Sidechain Bus found on the hardware version of the CL 1B. An ability unique to the CL 1B plugin is the advanced metering, capable of displaying the left channel, the right channel or both channels.

Great sound

Tube-Tech CL 1B is a true studio classic, heard on tons and tons of records for the past 20 years. Like its hardware counterpart, the Tube-Tech CL 1B native plug-in sounds soft, smooth, groovy and can compress an insane amount ofdB's without sounding bad. The CL 1B plug-ins by Softube are the only Tube-Tech plug-ins that are fully endorsed by Tube-Tech. This version requires no DSP hardware but uses the same outstanding modeling technology and algorithms as the famous Tube-Tech CL 1B plug-in for TDM and PowerCore . The sound is of course just as fantastic as its predecessor. With this unprecedented accuracy, down to details such as the precise VU meter behavior, the Tube-Tech CL 1B plug-in is definitely in a league of its own.

Softube Tube-Tech CL 1B Plug-in Features:
  • For Native systems
  • Classic Tube-Tech sound in your computer
  • Created together with the designers at Lydkraft/Tube-Tech
  • Each and every component carefully modeled
  • Fix./man. mode for breaking traditional compression boundaries
  • External sidechain control
  • A great-looking GUI
  • Very CPU friendly
Softube Tube-Tech CL 1B Plug-in - A classic in plug-in form!

Tech Specs

Software Type Compressor
Platform Mac, PC
Upgrade/Full Full
Download/Boxed Download
Bit Depth 64-bit
iLok Required Account only required
Format AAX DSP, AAX Native, VST, VST3, AU
Hardware Requirements - Mac Intel Core 2 Duo or higher, 2GB RAM minimum
Hardware Requirements - PC Intel Core 2 Duo/AMD Athlon 64 X2 or higher, 2GB RAM minimum
OS Requirements - Mac OS X 10.9 or later
OS Requirements - PC Windows 7 SP1 or later
Manufacturer Part Number SFT-CL1-NAT

Customer Reviews

Based on 7 reviews
Write your review

Just get it, smooth as silk

Don't think about it, just get it! Kills on vocals, awesome!
Music background: Mix Engineer


I find that this plugin sounds so much more 3d sounding then the CLA-2a which sounds very flat and 2d to me. Make sure you set the attack and release to manual and thats where you'll get the 3d sound. If you set it to fixed then it sounds more 2d sounding.
Music background: Music producer and Professional Singer

Funky compressor!

The Cl 1B gives me the mojo I need for some funky tracks. It is smooth as butter. With so much character just as with the hardware version can deliver. I am very happy with my purchase. Now I get to play with the big boys.
Music background: Music Producer, Musician


This piece truly holds it's own in the plugin realm. I've used everything from waves to liquid mixes and find myself always reaching for this plugin. It has a softness that I just have trouble finding in other plugins. So often emulations work but really don't hold true to the actual equiptment, in this case however The CL 1B really could be mistaken for this plugin. If you want a plugin that actually delivers for once across the board, this ones for you.
Music background: Recording Engineer, Producer

I think it's great!

I totally disagree with the previous reviewer. I've been demoing this intensively and comparing closely to Waves CLA and all kinds of other compressors. I do love the Wave stuff, but the Softube CL1B is special in my opinion. It does have a similar sound, to my ears, to the CLA2 from Wave's CLA, but the CL1B also has the advantage of much more flexible user controls (Attack, release, various modes, etc.) I find it is very clean and defintiely gives a great analog vibe. Yes it's pricey, but if you want that sort of great sound plus control, I don't know anything like it. I'm going to order it soon. (The demo is good for 20 days--very generous.. My advice, check it out and see if it's worth the money for your own needs.
Music background: Musician, Recording Engineer, Producer, Composer

Sweetwater Advice

Austin Moss

Love at first instantiation. This may be the smoothest software compressor I've ever used. I've had the pleasure of using this on male and female vocals, synth leads, and even some bass. I've enjoyed using it as a color piece by setting the threshhold high and turning up the gain. Creamy and good. More please!
See also: Compression Software, Softube, Softube Plug-ins: Dynamics