STAM AUDIO ENGINEERING
1.0 INTRODUCTION
The Stam Audio SA-76ADG is an exact replica of the 3 most revered revisions of the UREI
1176 FET compressor.
Do you love the aggressive mid-range and coloration of the 1176 blue face, the subtle character
and versatility of revision D on vocals and bass and love the gentle and transparent properties
of revision G on acoustic guitar and stringed instruments? Then the Stam Audio SA-76ADG is
the ideal compressor for you.
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
bypass the transformers for revision G 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 and CineMag output transformer,
historically correct capacitors, 1% resistors and the original output transistors, 20N3055 on the
D revision and 2N5055 on the A revision.
SA-76 ADG - USER MANUAL
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