Looking for powerful, reliable bass tone This used SWR WorkingPro 400 Bass Amp Head delivers 400 watts of solid-state power at 4 ohms, perfect for live gigs or studio sessions. It's in good condition with some cosmetic wear but functions flawlessly. This amp features a 4-band active EQ, a built-in Aural Enhancer for shaping your sound, and a handy DI output for direct recording or PA use. It also includes a limiter and effects loop, giving you great tone control and flexibility. Whether you're a seasoned bassist or just need a dependable backup head, the WorkingPro 400 offers SWR's classic punch and clarity at an affordable price.