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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.

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

      K. Jeppesen

      September 19, 2022

      Glue and warmth

      Very nice bus comp.

      S. Rodescu

      September 18, 2022

      Perfect for my Master Bus

      Perfect on my master bus , it glues everything so nicely , and the Sidechain Filter on the updated version is a must have , i'm really impressed by the sound !
      Thanks Universal Audio !

      S. Rodescu

      September 18, 2022

      Perfect for my Master Bus

      Perfect on my master bus , it glues everything so nicely , and the Sidechain Filter on the updated version is a must have , i'm really impressed by the sound !
      Thanks Universal Audio !

      A. Smith

      September 14, 2022

      That perfect glue I've been looking for

      Perfect to add to your buss to glue everything.

      p. fischer

      August 1, 2022

      A must have

      My Favorite bus compressor! I own the hardware and I can say that this plugin is fantastic. I love the side chain filter.

      S. Lombardero

      July 27, 2022

      Muy contento con UAD

      Los plugins de UAD, de los que he probado, son buenísimos, y este no podía ser menos. He probado otros, y desde luego UAD en primera posición. Felicidades a los creadores

      D. Martinez

      July 23, 2022

      Great, but missing one thing

      The compressor is great and I’ve used it on percussion and guitars mainly. Gives a nice natural feel to digital drums. The G comp is also great for mastering. My only gripe with it is that it doesn’t have a sidechain function. Please add one!

      O. Levi

      July 11, 2022

      Sticky fingers

      This is the glue for all your tracks.
      Crazy good, sounds beautiful and really sticky.
      Vital to every mix!

      M. Verblakt

      July 8, 2022


      I mainly use this as glue compressor on busses. Love it!

      h. kim

      July 8, 2022

      this is my bus comp...


      H. Sharif

      June 13, 2022

      Smooth like silk!!

      It's something about the SSL 4000 that really glues the music together! It's just smooth as silk!!

      S. Stoyanov

      May 15, 2022

      SSL 4000 G Bus Compressor

      This amazing vintage mix bus compressor is just the perfect addition to any instrument in the mix chain, acting gently and really adding that analog compression feeling, can be used almost on any instrument or vocal to make the over all mix tighter and more precise.

      G. Castle

      April 24, 2022

      Outstanding Bus Compressor

      I love this compressor. It definitely brings the glue I need to bring my mixes together.

      T. Münzberger

      April 15, 2022

      Glue you need!

      Almost on every session!

      M. Mitchell

      April 11, 2022

      I had tried the Demo version and just had to get this baby. It resided permanently on my Mix Bus. Love it.

      Y. Akai

      March 15, 2022


      I have been using hardware for over 30 years and this plug-in feels exactly like a real console.

      S. Alfarano

      February 5, 2022


      simply amazing, when it comes to glue master or buss or parallel compression, this little plug do the job wonderfully, a must have tool.

      I. Voevodin

      February 3, 2022

      Great compressor

      It works on the master bus just fine. I have tried many different famous modulations. This one works very well. I use the demo version, I will definitely buy it.

      M. Malka

      January 19, 2022

      G 4000

      Only a bit from this will change your life :)

      D. Matthews

      January 16, 2022

      So Smooth!

      Love this compressor. It glues things so smoothly. Have been using the 2 week demo and am excited to purchase one day soon!