SSL® 4000 G Bus Compressor Collection

SSL® 4000 G Bus Compressor Collection


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(94 reviews)

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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.


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

(94 reviews)

D. Russell

November 17, 2017

ssl g buss compressor

I bought this on impulse when it was on special without checking the demo version first. I had expected great results, but to be honest given the hype, but I was quite disappointed. I have fab filter pro limiter last up in the mastering chain and the Neve VR88 master buss before the pro L. I think the Neve 88 is way more powerful and useful. perhaps the Fab filter pro Limiter does much of the job, but adding the SSL comp before the Pro L did very little to the final mix output sound. not enough wow to warrant the $250 in my opinion. I guess I should demo everything before purchasing anything. a bit disappointed I was......

B. Vladimir

November 16, 2017

Stick it to the man

The most transparent glue compressor out there. Period.

H. Zwarts

November 16, 2017

Love the glue

the real SSL sound.. it has that lovely glue effect on drums and mixes... love it!

M. Buzniak

November 13, 2017


This is exactly what I hoped it will sound like but I thought it's not possible. I have experience with SSL hardware rack unit, Duality built in unit, c1 and a couple of clones I got to use in a different studios. I was also a big fan of Waves SSL plugin. The new UAD version it just incredible. I couldn't believe the amount of midrange it is pushing. It almost has too much punch. I really don't miss hardware. Thanks UAD.

E. Vee

November 6, 2017


Lives on my Ableton master template

V. Larbre

October 17, 2017

Magnificent glue

One of my favorite compressor, it brings light and cohesion in the sound. I know well the hardware version and this plugin is the best emulation ever made !

M. Browne

October 9, 2017

A Superb SSL G-Series Buss Comp Emulation!

...and the new side-chain controls are excellent additions too. Great work UAD!

t. takamasa

September 20, 2017


Great sound

D. Englisch

September 20, 2017

More open sound than the previous version.

More open than the original UAD bus compressor, leaving original content intact with some superglue. An essential tool in my mastering rig, so happy I did the upgrade. I do hope there will be better deals in the future for upgrades though.

N. Karkour

September 19, 2017

Great Flamenco Brazilian Mix

Just finished new album all the final mix had amazing balanced tight sound check the sound and speak for your self

M. Ryder

September 15, 2017

I was reluctant to upgrade again but I'm glad I did.

obviously when paying so much for virtual gear that is authorised by the original company you don't expect to constantly keep having to pay for what is in effect the same item you though was already precisely modelled.
This is the third incineration of the famous ssl compressor I wished the upgrade price had been a little lower and I summed and arid about having to pay again but I read the reviews and realised if anyone was going to do the job right it had to be UAD and hopefully this would be the final version.
did it do the job this time ..
Most defiantly YES there is a better cleaner sound very subtle but in a higher definition sort of way like comparing 16 bit with 24bit you just know it sound much better at 24bit
This is a worthwhile upgrade and you will notice the improvement.
UAD Please add more presets like on the older version as I love those quick start points for quick set up.

N. Karkour

September 13, 2017

Simply amazing

Cannot say engh my latest recording speaks for itself check it out.

J. Scalia

September 12, 2017

Ahhh! Thank You UA

This update is amazing. Finally , the plug behaves like the original hardware. Now, the comp can engage in the PLUS territory.
I'm a big believer in bus comps only engaging ( threshold) in the plus db area. No mix bus comp should have to dive into the minus 0 domain . The magic should happen after 0.
And most importantly, this thing sounds like sunshine in the morning!!
It has that "ahhh there it is" vibe to it.

J. Lesueur

September 11, 2017

Best SSL emulation

Can't compare with the original hardware, however I can say it does sound better than most of the hardware "clones" (TK, GSSL, etc...). And most of all, it sounds better than the other SSL bus compressor plugins. This one is really special, and adds a little something to the sound. The only thing is I think it softens a little bit the mix sometimes, but if you need clean and aggressive compression, there are plenty other compressors on the market for that. But if you want the classic glue sound, this is the one you need.

G. Ala

September 9, 2017

Mast have

It sound like the real unit , I add the G comp in all my channels

A. Lind

August 30, 2017


I had the original "upgraded" version which was great. I really didn't know what could be an improvement worth the upgrade price but the difference is obvious and immediately apparent! It's just better, period! This new emulation just has a noticeable "smack" that that hardware has and once I heard it in the demo, it was easy to decide to get it! (As easy as parting with $$ can be anyway lol)! If you like and or use the ssl compressor you need to check this out!

R. Richards

August 25, 2017

Best Glue fir mix busd

I live the sound of the comp. it adds such kool character to mix especial the mid to high frequency .Its sound way different to any SSL bus comp plugin I have .I stil want the 500 series model but this will work fine until then

R. Richards

August 25, 2017

Best Glue fir mix busd

I live the sound of the comp. it adds such kool character to mix especial the mid to high frequency .Its sound way different to any SSL bus comp plugin I have .I stil want the 600 series but this will work fine until then

E. Smallwood

August 16, 2017

Thick Like Glue

I’ve been waiting to get my hands on this one. Sounds amazing and with the side chain filter and mix knob makes it so much more versatile. I love it!

h. YU

August 14, 2017


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