The SolidGoldFX Lysis MkII is a polyphonic octave fuzz modulator that blends guitar and synth sounds. It features a fuzz circuit, offering multiple polyphonic voicings, and LFOs for modulation. This pedal includes octave down, octave down/up, and power chord voicings, along with high-pass/low-pass filters with adjustable resonance. It also includes tap tempo LFO and assignable expression/CV operation, and is designed to create psychedelic guitar freakouts or smooth undulation, similar to a Ring Modulator.