The Gyraf Audio Gyratec XIV is a true tube, all passive, stereo equalizer. It consist of five bands - each with 11 switchable frequencies, variable "Q", and boost/cut selection. It also has an output level trim, and a "hard" relay bypass control.
The two channels are linked - controlled with one set of knobs. The... View more
The Gyraf Audio Gyratec X is a true tube stereo compressor based on the classic variable-mu principle. This method - controlling the gain by altering quesient current in differential tube pairs - is much faster than the optical method. The speed is why it was widely used in early limiter devices such as the Fairchild 670 or the Universal Audio... View more
The Gyraf Audio Gyratec II is our most popular product to date. It is basically an all-tube recording channel, combining a microphone/line preamp, an equalizer and an optical compressor. Although solid state electronics is used - in power supply and sidechain - the audio signal never gets touched by anything but tubes, transformers and passives.... View more
The Gyraf Audio Gyratec III is a true tube stereo compressor based on the opto VCA principle. This method - controlling the gain by the means of a light dependent resistor - is not as fast as the vari-mu method, but much more subtle sonically. This principle is known from eg. the classic Universal audio LA2, LA3 and LA4 compressors..
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