Gallien-Krueger RB Legacy 2001RB: 2,000 Watts of Pure Analog Authority

The Gallien-Krueger RB Legacy 2001RB, also unveiled at NAMM 2025 at $2,099, is the flagship of the RB Legacy series and one of the most powerful analog bass amplifier heads available. Delivering up to 2,000 watts of burst power at 4 ohms through a dual power amp design, the 2001RB can operate in mono, stereo, or bridged configurations. Like its sibling the 1001RB, it is a fully analog, Class H design with no digital processing, built over five years of development to deliver uncompromising power for the most demanding bass applications.

GK RB Legacy 2001RB Specifications

Specification	Detail
Type	Hybrid Bass Head (Analog, Class H)
Street Price	$2,099 USD (MSRP) / ~$2,199 retail
Power	2,000W burst @ 4Ω / 1,200W standard @ 4Ω / 800W @ 8Ω
Dual Mono	2x 1,000W burst @ 2Ω / 2x 600W standard @ 2Ω
EQ	4-band active with variable Q
Voicing Filters	Bump, Contour, Presence (selectable)
Features	Dual power amps, adjustable limiter, cab sim, Class A headphone amp
Headphone Amp	Class A, 8-300Ω impedance range
Weight	41 lbs

Dual Power Amp Architecture

The defining feature of the 2001RB is its dual power amplifier design, which offers three operational modes. In bridged mono, both amps combine for a massive 2,000 watts of burst power. In stereo mode, each amp operates independently, allowing for bi-amped setups where different frequency ranges are sent to different cabinets. In dual mono mode, both amps deliver identical signals for maximum headroom across two separate cabinet stacks. This flexibility makes the 2001RB adaptable to virtually any stage setup.

Same Analog Purity, Double the Power

The 2001RB shares the same fully analog signal path, four-band active EQ with variable Q, and three voicing filters (Bump, Contour, Presence) as the 1001RB. The Class H power section with dual power supplies ensures efficient operation despite the massive power output, and the studio-quality Class A headphone amplifier supports impedances from 8 to 300 ohms with cabinet simulation for authentic monitoring. At 41 pounds, the 2001RB is significantly more portable than traditional high-wattage bass heads while delivering industry-leading power.

Built for the Biggest Stages

With 2,000 watts of burst power available, the 2001RB is designed for outdoor festivals, arena tours, and any situation where bassists need to project massive low end over long distances. The adjustable limiter provides protection against transient peaks while preserving the dynamic response that makes the RB Legacy series feel so alive under the fingers. Combined with the cabinet simulation on the DI output, the 2001RB also serves as a premium recording head that can deliver its full tone directly to a mixing console.

Who Should Buy the GK RB Legacy 2001RB

The 2001RB is for touring professionals who need maximum power and flexibility, bassists running large multi-cabinet rigs, and players who want the stereo and bi-amping capabilities that the dual power amp design provides. If 1,000 watts is sufficient for your needs, the more portable 1001RB at 25 pounds delivers the same preamp character at lower weight and cost.

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Frequently Asked Questions

Can the GK 2001RB run in stereo?

Yes. The 2001RB features dual power amplifiers that can operate in mono (bridged), stereo, or dual mono modes, allowing for bi-amped configurations and multi-cabinet setups.

What is the difference between the GK 1001RB and 2001RB?

Both share the same analog preamp, EQ, and voicing filters. The 2001RB adds a second power amplifier for up to 2,000W burst power and stereo/bi-amp capability. The 1001RB weighs 25 lbs and costs $1,499; the 2001RB weighs 41 lbs and costs $2,099.

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