Gallien-Krueger 2001RB Fusion

Gallien Krueger 2001RB Fusion – 1080W Bass Amplifier Head (2 x 540W) with a 50W Horn Bi-Amp system, featuring 2 channels (clean and overdrive), Active 4-band EQ, Horn Bi-amp System, Effects Loop, and multiple input/output options (1 x 1/4", XLR, SpeakON, Chain).

The 2001RB by Gallien-Krueger is a professional bass amplifier head designed for a powerful and rich sound. It features two independent channels – clean and overdrive – each equipped with an active 4-band EQ with variable Q and additional voicing filters for precise tonal shaping. Bassists who favor slap techniques will appreciate the Horn Bi-Amp technology with a dedicated 50W tweeter amplifier, ensuring clean high frequencies even under extreme load.

Ideal for studio and live performances, this amplifier offers extensive connectivity options, including a balanced DI with Pre/Post EQ switches and Ground Lift, an effects loop, and chain input/output for daisy chaining. The durable construction with dual analog power supply and toroidal transformer ensures stability even under maximum load conditions.

Gallien Krueger 2001RB Fusion Features

• 1080W power (2 x 540W) with bridge or dual mono operation
• Horn Bi-Amp system with a dedicated 50W tweeter amplifier for high-frequency clarity
• Two independent channels (clean and drive) with separate EQ control and voicing filters (Contour, Presence, 4-/5-string voicing)
• Active 4-band EQ with variable Q for precise tone balancing
• Expanded connectivity: balanced DI, effects loop, tuner output, chain input/output, and remote trigger support
• Boost function with Edge control for tube-like harmonics and characteristic "GK growl"
• Well-designed rear panel with Direct Out switches (Pre/Post EQ, Ground Lift) and Bridge mode for flexible cabinet operation

Gallien Krueger 2001RB Fusion Specifications

• Type: Solid-State Bass Amplifier Head
• Power Output:
  • Woofer Amplifier: 2 x 540W @ 2 Ohms, 2 x 360W @ 4 Ohms, 2 x 240W @ 8 Ohms
  • 1080W bridged @ 4 Ohms, 650W bridged @ 8 Ohms
  • Horn Amplifier: 50W @ 4 Ohms
• Channels: 2 (Clean & Overdrive)
• EQ: 4-band active EQ with variable Q:
  • Bass: +10 dB @ 60Hz
  • Lo Mid: +6 dB / -10 dB @ 250Hz
  • Hi Mid: +6 dB / -10 dB @ 1 kHz
  • Treble: +14 dB @ 7 kHz
• Inputs: 1 x 1/4" (Instrument)
• Outputs:
  • Direct Out: XLR with level control and switches (Ground Lift, Pre/Post EQ)
  • Speaker Out: 2 x 1/4" and 2 x SpeakON (Right & Left, with Bridge/Mono mode)
  • Tuner Output and Effects Loop (Send/Return)
  • Chain In/Out for connecting slave amplifiers
• Dimensions:
  • Height: 13.3 cm
  • Width: 48.3 cm
  • Depth: 30.5 cm
  • Weight: 18.2 kg