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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

      J. ter Borg

      March 25, 2023

      For DJ's that use their Apollo live!

      DJing with rekordbox Pioneer, I send my output to the virtual channels in Console so I can add some low latency bus compression to help with volume control and upward levelling. This one rocks for most pop and house, together with the Elysia alpha!

      F. Peter

      March 23, 2023



      A. Chichester

      February 11, 2023

      Annoying DRM doesn't work

      The SSL plugins I bought did not show up in my UA Connect. This is an annoying waste of time. This company cares more about DRM and money than being reliable.

      W. Pires

      December 29, 2022

      UAD SSL Bus Comp, Well worth the investment!

      SSL G BUS Comp we use to use this heavily during the hardware era!
      Many have tried to emulate it.
      Nothing comes closer than UAD SSL G BUS, It matches the hardware 90 -95 %
      I love to use the SSL G BUS to give that classic glue to the mix!!
      Well worth the investment!
      Thank you UAD!

      A. Shreds

      December 27, 2022

      The G.O.A.T

      I used to think a lot of SSL Bus Comp emulations sounded adequate until I entered into the UA world and demoed this product. Lasted 2 days on demo and purchased. Sounds noticeably more 3D and "gluier?" then others out there. No pumping or plastic sounds here! Do yourself a favor and give it a go!

      A. Neto

      December 26, 2022

      A must have plugin

      I love to use the SSL G BUS to give that ‘glue’, specially on my main bus.

      P. Radivojevic

      December 25, 2022

      For real SSL "glue" look no further

      Amazing emulation of famous SSL Bus Compressor. It's now permanent part of my master chain and works & sounds brilliant on mixes!

      L. Spilger

      December 24, 2022

      Lives on my mixbus

      Glues my vocal bus and/or mixbus together nicely, therefore I use it all the time!

      A. Acharya

      December 21, 2022

      SSL 4k

      It matches to the 90 % of hardware emulation ❤️

      C. Doud

      December 21, 2022

      Professional results, spoken here.

      A simple, intuitive, time-tested compressor gives punch and stability to bring together individual tracks and final mixes.

      D. Jackson

      December 12, 2022

      Best Sounding Emulation

      This is easily the best sounding emulation of an SSL Bus Compressor I've ever heard!

      A. Gorobets

      December 11, 2022

      Best Glue SSL

      Is for my opinion best version of ssl comp

      c. rosario

      December 9, 2022

      Just like the real thing

      Unbelievable compression
      Glues every mix

      J. Garcia

      December 9, 2022

      Great on groups or the entire mix!

      This compressor adds so much to the character of my drums or mix! Just loads of ooey gooey goodness! Another great emulation by UAD!

      R. Gregor

      December 9, 2022

      GLUE for drum and master buss

      The 4000 G Buss comp glues my drums and mix together like no other compressor.
      By far the best version that I've ever used.

      N. Cucharo

      December 6, 2022

      The Perfect Glue for a master

      The G Buss Comp is compression your mix is missing. Adds glue to your vocals and the track you didn't think you need.

      E. Kushch

      December 5, 2022

      it's the glue for my mixes

      I knew about this plugin for a long time, put it on the wish list and finally bought it, very cool presets, to understand you need to activate the trial period. Glues all the tracks together and the song sounds harmonious, do not forget to add Ampex ))

      J. Metzger

      November 28, 2022

      Not so fast

      I own the 500 series ssl g comp and I can attest that it has a way of reducing the width of a mix so I don’t use it as a master bus compressor , but instead use it on stereo sources where I want the stereo width to be less .

      E. Alexander

      November 18, 2022

      Best SSL G Bus Comp Emulation

      Love UAD for making this plugin a solid beast - sounds better than some other emulations - and does a great job of dialing in with ease. Always use it on my drum bus and sometimes on the master if I am going for the SSL sound - more glue, but with sacrifice on the sides (M/S).

      J. Szeszel

      November 14, 2022

      Glue legend!!!

      Must have for master bus.