Used Gallien-Krueger 2001RB 540W Bass Amp Head

Looking for powerful, punchy bass tone? This used Gallien-Krueger 2001RB 540W bass amp head delivers legendary GK growl and definition with plenty of headroom. Rated at 540W into 4 ohms for the main amp and 50W for the horn bi-amp system, this head is built for clarity, warmth, and versatility. Featuring two channels with independent gain and EQ controls, a four-band active EQ, Boost control for added grit, and a Direct Out with adjustable level and ground lift, the 2001RB excels in both live and studio settings. Designed for professionals, it also includes tuner output, effects loop, and speakON outputs for reliable speaker connections. This unit is in good condition, showing moderate signs of use but fully functional and ready to power your rig with GK’s signature tone. Whether you're driving massive lows or dialing in articulate mids and highs, this amp delivers the performance you need.