Used Gallien-Krueger 400RB-IV 280W Bass Amp Head

Punchy, reliable, and stage-ready, this used Gallien-Krueger 400RB-IV bass amp head delivers the classic GK growl in a compact package. Rated at 280 watts at 4 ohms (around 180 watts at 8 ohms), it features a 4-band active EQ, contour and presence voicing, and GK’s signature Boost for extra grind and dynamics. In good condition, it’s a proven workhorse for rehearsals, gigs, and studio sessions.