Used BOSS PSM5 Power Supply Master Switch Power Supply

Used BOSS PSM-5 Power Supply Master Switch in great condition — a legendary pedal that functions both as an A/B signal switch and a central power distributor for multiple BOSS compact pedals. Originally introduced in the 1980s, the PSM-5 offers reliable switching between effects or amp inputs and eliminates the need for multiple power supplies by distributing 9V DC output using a daisy chain (not included). Housed in BOSS’s iconic red metal chassis, this rugged and road-ready unit retains excellent functionality with minimal cosmetic wear. Perfect for players seeking vintage gear with practical utility, it operates on a standard 9V BOSS-style adaptor or 9V battery. This unit has been tested and works flawlessly, making it an ideal choice for guitarists looking to streamline their pedalboard setup while incorporating a piece of BOSS history. Don’t miss the chance to own this hard-to-find, multi-functional classic in great shape.