|JCA Circuits||Since 2006. Jason Arthur, Pottstown, Pennsylvania.
The JCA Circuits GR 1.6 “Golden Ratio” Amplifier is the first amplifier offered. I have plans and am presently working on another amp design TBA. The GR was introduced in January 2006.
[Source: Jason C. Arthur, Owner/Designer, JCA Circuits Amplifiers email 5/2/2009]