Studio Guitar Interface, Replacement part - TX only (must be used with RX). The SGI-TX Transmitter Module When using the SGI, the guitar connects to the SGI TX transmitter. This is a 100% discreet Class A active driver that employs the same front end and circuit topology found inside the popular Radial JD7 Injector. Class-A circuits retain the natural characteristics of the instrument by eliminating zero-cross distortion which in turn reduces harmonic distortion, inter-modulation distortion and phase shift. To counter any effect of the circuitry, the SGI is equipped with Drag Control, an innovative load correction circuit that reintroduces the natural relationship between the guitar and amplifier that would otherwise be lost. Power is supplied by a 15VDC external supply for added headroom over 9V systems. Both transmitter and receiver modules are equipped with isolation transformers to eliminate buzz and hum caused by ground loops.
