Vox VX50BA 50W Bass Guitar AmplifierThe compact and lightweight VX series of amps is joined by a new 50W model for bass, featuring Nutube, the new vacuum tube. Its distinctive advantages include a VOX original eight inch speaker, a unique bass reflex structure that ensures ample power and rich low frequency reproduction, and warm vacuum tube sound. There's also a four band EQ that allows detailed sound shaping, a compressor effect that's indispensable for bass, and an overdrive effect