BOSS Power Supply 500mA
The BOSS PSA-120S is the standard 9V, 500mA AC power adapter designed for BOSS compact pedals and multi-effects. It features a center-negative polarity, a 10-foot cable, and a space-saving design that avoids blocking adjacent outlets.
The PSA series is the recommended power supply for products including all new BOSS compact and Twin pedals, multi-effects and more.