Used Gallien-Krueger MARK IV 400RB Battery Powered Amp

Power up your bass tone with this used Gallien-Krueger MARK IV 400RB in good condition, a road-proven solid-state classic known for punchy, fast response. Rated around 200W at 4Ω, it features a 4-band active EQ, contour and presence shaping, and DI output for easy stage or studio use. Compact and dependable, it delivers the signature GK growl and clean headroom players love.