Gyraf Audio Gyratec XXII Manual

Gyraf Audio Gyratec XXII Compressor
Gyraf Audio Gyratec XXII Dual/Stereo/MS Vari-Mu stereo compressor.
Preliminary user manual, 3. April 2015.
The Gyratec 22 is a true tube stereo compressor based on the Vari-
Mu principle. This method - controlling the input gain by the
means of varying the DC working point of a tube differential pair,
and hence the Mu, is much faster than the electro-optical method
used in our G2 or G3, but also to some degree less subtle. Where
G3 is about clean polish, the G22 is about rock'n'roll.
In use:
First of all, when turning on the compressor, allow the unit to
heat up for ten to fifteen minutes - to get the tubes stabilised
in their working temperature. The sound and operating levels will
change somewhat within this period.
The controls on the Gyratec 22 are as follows:
The inputs are floating transformer balanced, 10K Ohm "bridging"
type, meaning that we don't load the output of the previous stage
too much. The input connectors are standard XLR jacks, pin 2 hot.
The G22 is an elaboration of our old popular G10 - keeping the
same audio path (if it works, don't fix it!) - but it's control
interface has been thoroughly redesigned to allow a wider scope
and an even more creative use.
First of all, this is now a dual-channel unit - allowing you to
use it as two compressors on two different signal sources. Nice
when you record or mix.
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