SSL® 4000 G Bus Compressor Collection

SSL® 4000 G Bus Compressor Collection


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The ultimate “glue” for your mix bus,
re-modeled with stunning accuracy.

Integral to the hit-making SSL sound, the G Bus Compressor is legend for making mixes bigger, more powerful, and punchy, all the while enhancing cohesion and clarity. Fully endorsed by Solid State Logic, Universal Audio proudly unveils the SSL 4000 G Bus Compressor Collection for UAD-2 hardware and Apollo interfaces — an expert end-to-end circuit emulation that goes further than UA’s original standard-defining SSL G Bus Compressor plug-in.

Now You Can:

Mix with a jaw-dropping update of the iconic SSL G Bus Compressor

Give power, cohesion, and drive to mixes, buses, or any source

Harness new features like Side Chain Filtering, Mix, and Headroom controls

Mix with artist presets from Just Blaze (Beyoncé, Kendrick Lamar), Peter Mokran (The Flaming Lips, Mary J. Blige), Ian Boxill (Prince, Tupac), and more

Take a Listen

Take a Listen
The Only End-to-End<br />SSL Bus Compressor Emulation

The Only End-to-End
SSL Bus Compressor Emulation

Embarking on a ground-up re-design of the original SSL G Bus Compressor plug-in, UA’s team of engineers meticulously remodeled every nuance of the in-console and FX G384 rackmount specimens, including their unique CV (control voltage) summing. By capturing all of its circuit behaviors, the new SSL G Bus Compressor plug-in gives you all of the famed SSL hallmarks — punchy, transparent glue, and an ultra-accurate stereo image.

Original Recipe

Original Recipe

From subtle and transparent dynamic control to more aggressive textures with peak limiting, the SSL G Bus Compressor plug-in’s simple, intuitive control set lets you quickly dial in what you need. The fixed Attack and Release controls are SSL-voiced for bus functionality, including the program-dependent Auto Release function. Conjure "barely a wiggle" 2-bus glue, or "bury the needle" full dynamic crush with the continuous Threshold control.

Custom Enhancements

Custom Enhancements

New workflow features make the SSL G Bus Compressor Collection even more vital for the modern producer/engineer. The internal Side Chain Filter allows you precise tailoring of low frequency response to reduce low-end “pumping,” while the Mix control provides inline dry/wet processing — perfect for quick parallel compression on a drum or vocal bus. The Headroom control lets you adjust the overall operating level of the plug‑in.

Fade to Black

Fade to Black

Just like the console units, the new SSL G Bus Compressor features the original Auto Fade feature, providing the signature SSL fade taper, up to 60 seconds. With the new SSL G Bus Compressor, plus the included DSP-lite SSL G Bus Compressor Legacy plug-in, you can craft your projects with Platinum‑selling sound.

Watch The Reviews


      Painstakingly modeled by Universal Audio's plug-in design team, licensed and authenticated by Solid State Logic

      Beloved 4000 G era compressor design, measured from the all-discrete hardware

      Specially tailored dynamic characteristics ideal for compressing full mix or subgroups

      Provides the entire circuit path and control set of the stereo dual-VCA compressor

      Signature 4000 G features include fixed range Attack and Release including program-dependent "Auto" release, and Auto Fade

      Plug-in exclusive features include SC Filter, Dry/Wet parallel processing and Headroom for user-customizable operating level

      Includes low-DSP Legacy SSL G Bus Compressor plug-in

      Includes presets from Just Blaze (Beyoncé, Kendrick Lamar), Peter Mokran (The Flaming Lips, Mary J. Blige), Ian Boxill (Prince, Tupac), and more

      Customer Reviews

      SSL 4000 G Bus Compressor Collection

      Overall Rating

      T. Eby

      January 21, 2021

      Best there is

      Best emulation out there. Does exactly what its supposed to do. Glue and punch!

      R. Westmoreland

      January 20, 2021

      The G.O.A.T master bus compressor!

      Pretty much the best, I use this in conjunction with a multi band compressor and it works for giving a good idea of what the mastered version of my mixes will sound like final product!


      January 16, 2021

      Love it!

      Love it, it's punchy and very natural.

      N. Petitfrère

      January 13, 2021

      Your new default master bus compressor

      I’ve seen it used by different pros, and wondered how it could enhance my mixes, results: it’s awesome, you get mixes to sound like a record in no time, it glues everything you feed into it and paradoxically makes everything pop

      On a side note, the sidechain filter and Headroom option makes it a lot more relevant for modern day « bass heavy »mixes than the original hardware design, smart move guys.

      b. zucchetti

      January 9, 2021

      Excellent as the original hardware and everything of UAudio !

      Legendary.... Must to have ! Everything on subgroup of my protools session!
      A great big portable studio in my Mac !
      By the time and waiting the right promotion i will buy everything of UAudio!

      D. Gahl

      January 8, 2021

      G Bus Comp ist Vielseitig

      Ich habe den G Bus Comp direkt in einer laufenden Produktion eingesetzt und bin sehr zufrieden. Das Tool fordert etwas Erfahrung und vor kenntnisse,ist aber speziell auf Bus Spuren sehr mächtig.

      N. Kazakov

      January 4, 2021

      Greatest glue and punch

      I’ve been a fan of other ssl bus compressors, but this one just beats them all! Such a punch and glue added to the track. Now I have the desire to re-mix all the projects with this ssl comp

      a. dominique

      December 31, 2020


      Très bon

      Z. Mo

      December 22, 2020

      No Joke

      Ok i ain't gonna expand , but let's put it simply , i own every SSL plugins availlable , add to this vertigo's (VSC 3 / VSC 2) and this is simply the best . My quest is other itb , i swear i could have bougth my uad card just for this one alone .Watched some Youtube videos and comparaisons aren't anywhere near what this thing can do ... i can say that this one sounds AT LEAST as good if not better than certain HW clones i tried .... it's either this one or go Real SSL HW ....

      K. Frost

      December 22, 2020

      SSL G Buss Compressor

      It really does what they say. Adds the glue. If you are new to recording and compressors of this, might take a little practice to really appreciate it, but once your ears learn to hear it, amazing how it can pull tracks together. Also like the legacy version, low dsp usage and gets the job done. I have been using legacy on vocal group bus before sending it to Neve Summing, same with guitars, 4-1 ratio, 1-4 db reduction touch of markup gain. Always on Main out.
      A must have.

      J. Davies

      December 11, 2020

      MSTR Buss

      I use the SSL G-Buss on every master fader. Usually classic center compression. MSTR buss in order: Precision Limiter, Manley Massive Passive eq, SSL G-Buss, and an Ampex 102.

      A. Kolomvatsos

      December 11, 2020

      The best comp!

      Is this the best compressor to have? Yes it is.

      J. Napolitano

      December 11, 2020

      SSL 4000 G Bus

      Great sounding from UAD once again sounds nice on a drum & bass bus glues everything together nicely very happy

      K. Cantrell

      December 8, 2020

      Pretty Glue-y

      Obviously with compressors you need to know what you’re doing otherwise you’ll end up with an unintentionally spicy mix. The SSL is a strong bus compressor and definitely has this midrange push and presence you get at 4-1 when you mix into the compressor, leave the gain knob at unity and keep the needle hovering between -3 and -6. That’s the ol’ Andy Wallace trick and it sure gets you that rock mix tightness with the drums up front and the guitars pushing the speakers. Otherwise the actual color and vibe is unmistakable. This bus compressor is clean and has this metallic sheen to it that is really fantastic. I was going to pick one bus compressor and live with it. Definitely not sad I finally bought it. I must have trialed it 3 times.

      J. O'Connell

      December 6, 2020

      My new favourite plug-in .......

      .........this provides the “glue” that I’ve heard mentioned so often in the past.

      H. Andersen

      December 5, 2020


      The best om the market

      T. KARIM

      December 1, 2020

      Perfect product

      I use it every day on my mix for glue my bus and the final mix thabks UA.


      November 30, 2020

      Smooth as a baby's a$$

      Really cool comp. highly recommended, especially on a sale like for the last one. Thumbs up UAD

      o. ortiz

      November 30, 2020

      real deal

      best bus compressor
      it just glue every thing together, gives u that musical sound with out pushing it to hard,a must have , I love my bus compressor

      K. Køningsberg

      November 23, 2020

      Waving goodbye... other versions of this legendary compressor. Many have nailed the look of it, but few have nailed the sound. UA flexing muscles with this one. It will never leave my mixbus. psst..try it on your drums as well..