The Boss PSA-220 9 Volt DC Power Supply is a vintage, Japanese-made unit designed for reliably powering Boss effects pedals and other compatible devices. Built during the era when Boss manufactured their power supplies in Japan, the PSA-220 is known for its exceptional build quality, clean output, and long-lasting performance.
Delivering 9V DC with a stable and consistent current, this adapter is ideal for vintage and modern pedals that require a center-negative 2.1mm barrel connection. Its rugged design and proven reliability have made it a favorite among collectors, tone purists, and musicians who prefer authentic vintage equipment for their setups.
Fully tested and in excellent working condition, this Made in Japan PSA-220 is perfect for powering classic Boss pedals and ensuring your signal remains pure and noise-free.
