The Virtuoso is a boutique recreation of the original
Maestro® PS-1A Phase Shifter, as used in the 1970's by keyboardist John
Paul Jones (Led Zeppelin) and guitarists Steve Howe (Yes) and Ernie
Isley (Isley Brothers), among many others. Footswitches below three
colorful LED's select SLOW, MEDIUM or FAST phase. The effect ramps up or
down when changing from one speed to another and like the original,
sounds superb with guitar or keyboards.
Simply listen to No Quarter (Led Zeppelin), Starship Trooper (Yes) or Who's That Lady (Isley Brothers) to experience the classic sound produced by the original PS-1A.
The Virtuoso's modern accruements include a footprint that is pedal board friendly, can be powered by either a 9v battery or AC Adapter, is true bypass (relay based) and has a much improved signal-to-noise ratio.
Heptode spares no expense in developing pedals using only the very best components and technology: