SA-76ADF – Analog FET Compressor

Classic FET Compression & Limiting

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(3 customer reviews)


The Stam Audio SA-76ADF is an exact replica of 3 famous revisions of the UREI 1176 FET compressor. Revision A, D and F.

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SKU: sa-76adf-2019-b1 Category: Tags: ,

Three famous revisions of classic FET compressors in a single hardware unit

Following our highly successful SA-76ADG release we decided to go one step further and incorporate the all-time favorite F revision into our 3 in 1 compressor topology by respecting the original schematic and adding a third Altran output transformer to the signal. We have also added the Super Slow Attack switch and 2:1 ratio from the AD revision (Anniversary Edition) making this a 4 in 1 compressor.

As we were already planning to do a 1176 model of each famous revision, it occurred to us, why make just one if we could deliver all 3 versions to our clients, at the same price a single unit? Mechanically and component-wise the cost was marginally higher and we could use both the 0-12 and 50002 transformers for the A and D sections as used on the original units and the 0-12 and B11148 transformers for revision F like the original.

There were 2 challenges to be overcome. First, each revision had to sound 100% identical to the original by respecting the original signal path and schematic. Secondly, it had to look like an original 1176. We removed the +4 and +10 metering options and left the VU meter in standard Gain Reduction mod, in order to utilize the original switches to select between which revision you want. With the aid of several relays we have insured that you can switch from one version to another, seamlessly respecting the original sound.

Each unit comes with a Sowter input transformer O-12 replica, two Sowter/Carnhill output transformers, Philip capacitors, Ohmite carbon comp resistors, tantalum and the correct output transistors, 20N3053 on the D revision and 2N5053 on the A revision.

Commercially, it would have made more sense for us to release all 3 revisions separately and it would have meant selling more units…but for us at Stam Audio, it is important for us that you get the most out of your money, as well as optimize rack space.

The SA-76ADF is made with premium components

We have gone to great length to faithfully reproduce the compression characteristics and tonality of the original.

The SA-76ADF features a Sowter 1260 input transformer which is an identical replica of the original UTC O-12 (Ratio 1:1.58 200/500 Ohms) and two Sowter/Carnhill output transformers that precisely matches the ratio and frequency response of the original 5002 and B11148 output transformer designed by Bill Putnam. We have made no compromise in parts such as Vishay capacitors, NOS carbon resistors and matched selected transistors to ensure you will get the best sounding unit without cutting any corners. All of the SA-76ADFs are calibrated in our workshop in Chile where they get their transformers soldered, a full health check, and a burn for 24 hours.

100% satisfaction guarantee – if you don’t love your SA-76ADF, we’ll refund you

If you’ve used an original 1176 revision A, D, or F before, we’re extremely confident the Stam Audio SA-76ADF 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 FET compressor is right for you, is to put it through its paces. That’s why the SA-76ADF 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, Whichever way you decide to go we will remain friends.

Technical Specs

  • Sowter 1260 input transformer
  • Sowter 1327 Output transformer
  • Carnhill VTB1148 Output transformer
  • F.E.T Gain Reduction
  • Matched transistors
  • 20 microseconds to 800 microseconds attack time
  • Adjustable release time – 50ms to 1.1 seconds
  • XLR input
  • XLR and TRS outputs
  • Voltage switch selector (115V or 230V)
  • Internal toroidal transformer
  • Final assembly by hand in Chile
  • 1-year warranty
  • 30-day money back guarantee

3 reviews for SA-76ADF – Analog FET Compressor

  1. Karl Grant

    Looking forward to a visit to Chile on the 25th of July. I would love to visit your facility and speak with you I have many clients who have shown an interest
    Especially with the 1176 series SA-76ADF
    Regards Karl

  2. Bruno Caporuscio

    My patience has been rewarded, a small jewel throne in my humble home studio.. The most difficult will be not to abuse it.. Thanks to the whole team of Stam Audio for offering such a tight price a compressor of this level of manufacture.. It sounds guys!

  3. Knut Havvik

    Sounds Fantastic – Love it. A long wait is over:-)

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