Home > Rack Gear > Compressors > Dual Channel >

  Gyraf Audio Gyratec X /HPF Stereo Vari-Mu Compressor

Gyraf Audio Gyratec X /HPF
Gyraf Audio Gyratec X /HPF
 
List Price: $3,139.00
Our Price: $3,139.00


Availability: Usually Ships in 4 to 6 Weeks
Product Code: 9999-16992

 

Gyraf Audio Gyratec X /HPF Stereo Vari-Mu Compressor

Gyraf Audio Gyratec X /HPF Stereo Vari-Mu Compressor

Gyraf Audio Gyratec X /HPF Stereo Vari-Mu Compressor Details

Gyraf Audio Gyratec X /HPF Stereo Vari-Mu Compressor 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. That's why it was widely used in early limiter devices such as the Fairchild 670 or the Universal Audio 176, but the sonic byproducts of this topology are the main reasons why it is so popular today.


Gyraf Audio Gyratec X /HPF Stereo Vari-Mu Compressor allows high-pass filtering of the controlling sidechain signal - allowing harder compression to bass-heavy material without pumping artefacts. The selection is done as 3 extra steps on the bypass switch, which gives cutoff frequencies of ca 80, 160 and 300Hz at a soft 6dB/oct.


Gyraf Audio Gyratec X /HPF Stereo Vari-Mu Compressor is based on a very minimalistic true-differential signal path from input to output, using very tightly selected PCC189 (7ES8) remote-cutoff dual triodes for the VCA stages, and E88CC (6DJ8) low-noise triodes as cathode followers for the output stage drivers. Both tubes are still fairly easily available throughout the world.


Gyraf Audio Gyratec X /HPF Stereo Vari-Mu Compressor Features


  • A true tube stereo compressor based on the classic variable-mu principle
  • Allows high-pass filtering of the controlling sidechain signal
  • Based on a very minimalistic true-differential signal path from input to output
  • Input level pot is positioned right after the input transformers
  • Threshold pot controls at what level the compression will set in
  • Ratio pot controls the amount of compression in relation to changes in the input level
  • Attack pot controls the time the compressor takes to react to a rising input level
  • Release pot controls the amount of time it takes from the input signal falling below threshold, to the gain reduction being returned to unity
  • Output level pot controls the signal level to the output driver stage and the output
  • Bypass switch bypasses the unit completely

Gyraf Audio Gyratec X /HPF Stereo Vari-Mu Compressor Downloads



Click here to view all Gyraf Audio Products