SA4000-5 MK2

Classic VCA Buss Compression

Next Batch:IN STOCK

(5 customer reviews)


The legendary stereo buss compressor that will give your mixes glue and character

With a lot of companies coming up with an affordable stereo buss compressor clone, we decided it was time to step up our game and take it to the next level. While we were proud of the first SA4000 units and still think they are great sounding machines, we knew there was something missing, and the best word to describe it was character.

We set out to build the best sounding bus compressor we could achieve and the only way to do that was to get closer to the original design. However, there was one problem; we had to bring back to life the DBX 202C VCA can, an obsolete, fully discrete and extremely time consuming piece of hardware that was the heart and soul of every early Oxford made desk.


So we did and it is now available in a 500 series format.

The SA4000-5 MK2 Stereo Buss Compressor is the most authentic recreation of the bus compressor found in the center section of the legendary G Series Console. An overwhelming favorite among mix engineers, the G Comp has very likely shaped more hit records than any other over the past three decades. Strap it across your 2-bus and hear your mix get punchier, bigger, more powerful, and glued together with unmatched cohesiveness. The SA4000 MK2 Stereo Buss Compressor gives you the same famous character, compression behavior, and frequency response as the original. And it does it at a fraction of the price.

The SA-202C is an identical discrete reproduction of the original VCA used on every single desk from the 80’s. It imparts a unique coloration and harmonic distortion which led these desks to be recognized for two things: glue and character. Each Stam Audio SA-202C is built in the same old fashion as the original with a complex system to hand match the very same transistors and values. On top of these we auditioned 16 brands of capacitors to find the best sounding ones and Elna Silmic were by far the winners; they present a wider frequency response than any other brand.

The SA4000 has true 202C VCA’s.

At the heart of the SA4000 MK2 are two Stam Audio SA-202C VCA cans, which are fully discrete and identical replicas of the original DBX 202C gold cans found on the original vintage SSL consoles. This makes the SA4000 MK2 the only bus compressor in the world to faithfully replicate the inner circuit of the original desk. Each SA-202C can is made by hand in Chile, where transistors are carefully matched in a proprietary circuit.

There is no compromise in parts throughout the entire circuit, which ensures you get a compressor that behaves and sounds 100% accurate to the original. All our units are hand made and calibrated in our workshop in Chile where they get a full health check twice and burn for 24 hours.


The ultimate cure for “digititis”

While plugins have come a long way and are incredibly useful, there’s a reason the top engineers still have analog gear in their racks. And some of the biggest gains to be made if you’re mixing “in the box” is to use quality hardware on your master buss.

When you strap the SA4000 MK2 Stereo Buss Compressor over your master buss, your mix will instantly glue together and sound more cohesive. Small adjustments will bring more punch, tightness, power, and size to your mix…all without sacrificing clarity. Simply put, your mixes will sound like a record should!

Legendary on the mix bus. Magic on the drum bus. It’s one of those rare pieces that just makes things sound better regardless of the musical style.

100% satisfaction guarantee – if you don’t love your SA-4000-5 MK2, we’ll refund you

If you’ve worked on a classic SSL G Series desk and strapped the G Buss Comp across your mix, we’re extremely confident the SA4000 MK2 will put a big smile on your face every time you use it. However if you’ve never touched the original before, as gear lovers ourselves we understand that the only way to really know if this compressor is for you, is to put it through its paces. That’s why the SA4000-5 MK2 Stereo Buss Compressor comes with a 30 day money back guarantee. This allows you to get it into your rack and see how it impacts your recordings. If you love it (and we think you will!), great…keep the unit and create amazing music with it. If not, no problems. Just send it back to us and we’ll fully refund your purchase. And don’t worry, either way you decide to go we will remain friends.

Technical Specs

  • 2 Stam Audio SA-202C discrete VCA (DBX 202 replica)
  • 2 THAT 2180CL VCAs
  • True to the original G Series Desk circuit and schematic
  • Elna Silmic premium capacitors
  • 5 ratio settings
  • 5 release settings
  • Gain Reduction meter as fitted to the classic SSL consoles
  • Sifam Knobs
  • Hand made in Chile
  • 2-year warranty
  • 30-day money back guarantee

5 reviews for SA4000-5 MK2

  1. Geoffrey N Merrifield

    I have long heard great things about Stam Audio gear. I have a rack AudioScape SSL clone, which I really like, but I prefer 500 Series gear, and Stam’s new SA4000-5 MK2 offers a High Pass Filter, plus 1.5:1, 2:1, 3:1, 4:1 and 10:1 Ratio’s. AudioScape’s has 2:1, 4:1 and 10:1. Got my hands on the Stam and did several A/B comparisons: Mix Bus, Drums, Bass, Guitars, Vocals… I have to say they are both great units, but I chose the Stam Audio over the AudioScape. The Stam Audio can do simple glue, or be quite aggressive if desired. Along with extra Raitio’s, High Pass Filter (HPF) and 500 Series, The Stam was my choice. The Stam was in stock and I received it in a few days. Joshua and Stam were great to deal with. Now I want their SA-76A-5!!!

  2. Jono B

    Sounds incredible.. Very detailed, you can really dial in that classic ssl g comp.
    Very happy with this. The sound stage is instantly better, more width and rich lows.

  3. Andrew M

    Having used a few other SSL style compressors, and this one really has a vibe and a sound to it. The 202Cs make a huuuge difference in terms of vibe, it is not colorless, but the color is wonderful. I think Josh really was able to capture what made the original such a legend in the first place. Also finding that there are many sweet spots and the whole range is very usable was a wonderful surprise. It really brings everything together in a beautiful way, honestly, This thing sounds and feels better than some SSL compressors that cost 3-4 times the price

  4. Andrew

    Wonderful vibe from this, have tried a few other SSL style compressors and have kept them for less than a month each because I was underwhelmed after giving them their fair shake, I have had this for a few weeks now and I can say, it has a permanent place in my rack, this one definitely takes the cake, it has no lack of balls and vibe and some of the other cleaner ones that lack the 202C, really some magic in them! They really captured what made the original such a staple. Very versatile and the differences between settings are very pronounced, no guessing and wondering is that really compressing 10 to 1?? Very impressed!

  5. Andrew

    Stam really captured what made the original unit so special! I have had a few other SSL type comps and haven’t kept a single one longer than a month due to being underwhelmed, I have had this one a few weeks now and after putting it through it’s paces… I can tell you, it has earned a permanent spot in my studio! Liked it so much that when I found out about the 76D+, I literally bought it without even thinking about it! If you’re on the fence, just get it you will definitely not regret it!

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