Used Roland GR-20 W/GK-3B Guitar Effect

Used Roland GR-20 Guitar Synthesizer with GK-3B Bass Pickup

Estimated Year: Early 2000s (c. 2004–2008)

Made in: Japan

Overview

The Roland GR-20 is a powerful guitar and bass synthesizer that allows players to access a wide range of realistic instrument sounds directly from their guitar or bass. Using Roland’s GK divided pickup system, the GR-20 tracks each string independently, enabling expressive synth tones, MIDI control, and layered textures without noticeable latency. This unit includes the GK-3B pickup for bass, making it an excellent solution for bassists looking to explore synth sounds, pads, leads, and orchestral textures in a live or studio setting.

The GR-20 features over 450 onboard sounds including strings, brass, synth leads, pads, ethnic instruments, organs, and more. Built-in effects such as chorus, delay, and reverb allow for shaping sounds without additional pedals. With its rugged floor-based design, expression pedal, and simple interface, the GR-20 is ideal for live performance, songwriting, sound design, and experimental players.

Features

- Guitar/Bass synthesizer with Roland GK divided pickup system

- Includes Roland GK-3B bass pickup

- Over 450 onboard synth and instrument sounds

- Categories include strings, brass, pads, leads, organs, ethnic, and percussion

- Built-in expression pedal for real-time control

- Chorus, delay, and reverb effects onboard

- MIDI output for controlling external gear or software instruments

- Patch memory with user presets

- Stereo outputs plus headphone output

- Tuner and hold/glide footswitches

- Includes power supply and gig bag

Condition

This unit is in Very Good condition and functions as it should.

- Normal cosmetic wear from use

- All buttons, knobs, and footswitches work properly

- Expression pedal is responsive

- GK-3B pickup is fully functional

- Includes original-style power supply and carrying bag

Store Policies

- All items are tested before listing and again before shipping.

- Orders typically ship next business day.

- Shipping is available to the continental U.S. only.

- We do not accept trades on shipped items.

- Returns are accepted within 48 hours of delivery. The buyer covers return shipping, and a 20% restocking fee applies. If you have any questions before buying, feel free to message us—we’re happy to help.