Description
Dynamic processor as awesome as its name is long, the Gyraf Gyratec XXI Magneto-Dynamic Infundibulum is a unique, passive, transformer & inductor-based equaliser, clipper and limiter
The Infundibulum, or filter, creates a sidechain to a transformer-coupled signal path using an additional transformer winding. The sidechain is magnetically coupled to the signal chain, creating a bidirectional path where the signal excites the sidechain and, in turn, the sidechain modifies the signal
At its heart the G21 is a three-band analog equaliser, soft-clipper and saturator with a variable high-pass filter. It’s a stereo unit with one set of controls
“The G21 is a fully passive, stereo, three band audio clipper. Although originally intended for loudness optimization, it excels in cleaning up individual parts of audio spectrum without applying heavy-handed equalization. All this resulting in very subtle sounding operation – perhaps it’s easiest to think of it as a dynamic subtractive eq without time constants. Expect some learning curve on this one” – Gyraf Audio
The best source of information on the Infundibulum is possibly the Sound on Sound review but there are more info links under the Links tab
In excellent used condition with minimal marks or scratches. Tested & working 100%. Photos show the unit for sale