The Rhythm Pro PSA240 power supply is DC regulated and smoothed for BOSS guitar effects pedals and other 9v equipment. The BOSS PSA-240 delivers 9v DC at up to 500mA. The PSA-240 AC/DC regulated power supply converter converts UK mains voltage to DC 9v for most boss guitar and bass guitar effects pedals, stomp boxes and for some other Roland and BOSS products. The PSA240 power supply (PSU) output is regulated and smoothed. The voltage and current are constant with almost no hum.
