The Radial JD7 Injector is a creative recording tool disguised as a guitar signal distribution amplifier that allows a guitar signal to drive as many as seven amplifiers simultaneously without loss or coloration. Front panel control makes selecting amplifiers, ground paths and polarity (phase reversal) easy. The JD7 utilizes a newly developed Class-A audio signal path that has been optimized for use with electric guitars and is 100% discreet (no opamps or chips) producing the most accurate and f