The Boss PSM-5 Power Supply & Master Switch is a practical vintage utility pedal designed to simplify pedalboard power distribution and signal switching. This Red Label Made in Japan example, serial number 919889, is a desirable vintage unit from the original Japanese production period and offers the sturdy construction and dependable performance associated with classic Boss compact pedals.
The PSM-5 functions as both a power supply hub and a master bypass switch. When used with a suitable external power adapter, it can distribute power to multiple compatible Boss-style 9V pedals via daisy-chain connection. Its signal routing also allows a group of effects to be placed in a loop and switched on or off together, making it useful for managing several pedals at once without having to engage each one individually.
With its straightforward layout and robust compact enclosure, the PSM-5 is especially useful for vintage Boss pedalboards, compact setups, and players who want simple centralized control over both power and effect switching. As a Made in Japan utility pedal, it is also an appealing piece for collectors looking to complete a period-correct Boss setup.
Please review the photos carefully to assess the signs of use and included accessories. All photos are of the actual products. No accessories are included unless photographed and/or named.
This product runs on 9 volt DC.
This is a used product.
