True-Path ABY-ST Soft Touch

The Fulltone True-Path CS-ABY-ST is an A/B/Y switcher designed for routing a guitar signal to either of two amplifiers or both simultaneously. The Soft Touch version uses silent opto-based switching to minimize pops and switching noise. Each output has an independently switchable JFET buffer, allowing long cable runs while also permitting unbuffered operation for impedance-sensitive fuzz pedals. Output B uses a custom-wound nickel-core 1:1 isolation transformer to help prevent ground-loop problems and includes ground-lift and phase-reversal switches for multi-amp setups. Dedicated A/B and Both footswitches provide direct routing control, while the audio signal remains separate from the mechanical switching circuitry.