Gyraf Audio G10 HPF

Productbeschrijving

The G10 is a true tube stereo compressor based on the classic variable-mu principle. This method - controlling the gain by altering quiescent 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 176, but the sonic by-products of this topology are the main reasons why it is so popular today.

It is based on a very short true-differential signal path from input to output, using very, very tightly selected PCC189 (7ES8) remote cut-off 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.

Although semiconductors and op-amps are used in this unit, they're confined to power supply and side-chain functions. At no time will your audio pass through anything but transformers, tubes and passives. So we're talking REAL tube audio here.