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Roland GR-77B

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Page last updated Aug 10, 2025

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Description

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Dive into the world of expressive bass playing with the Roland GR-77B, a bass effects pedal that stands as a testament to Roland's innovation in sound processing. This unique pedal is tailored specifically for bassists, offering a distinctive analog synthesizer engine that captures the depth and richness of your performance. Whether you're transitioning between genres or creating new soundscapes, the GR-77B provides an expansive palette of tones, from deep, resonant bass lines to experimental synth effects.

With the GR-77B, bassists can explore a new dimension of musical creativity. It features a built-in pitch-to-MIDI converter, allowing seamless integration with other MIDI-enabled devices, expanding your creative possibilities. The pedal's intuitive controls make it easy to dial in the perfect sound, whether you're performing live or recording in the studio. Its robust design ensures durability, making it a reliable companion for gigs and tours.

Beyond its technical prowess, the Roland GR-77B is designed to inspire musicians, encouraging them to push the boundaries of their sound. Whether you're a seasoned professional or an aspiring artist, this pedal offers a gateway to new auditory experiences.

Key Features:

Distinctive analog synthesizer engine tailored for bass
Built-in pitch-to-MIDI converter for enhanced compatibility
Versatile sound-shaping controls for a wide range of effects
Durable construction for reliable performance on stage and in studio settings
Seamless integration with other MIDI-enabled devices

Videos

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WayneJoness

Roland GR-77B Programmable Analog Bass Synthesizer with G-77 Factory Demo

WayneJoness

Roland GR77B Bass Guitar Synth Part 3 - Floor Unit (Part 1 - Overview)

Dave Flynn

Roland GR-77B

Oscar Guitars

Roland GR-77B Vintage Bass Guitar Synthesizer vs GR-700 Demo Features Review

WayneJoness

Roland GR-77B Vintage Bass Guitar Synthesizer - User Presets Demo

WayneJoness

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Owner Insights

We analyzed real musician discussions from forums and Reddit to find what players love, question, and tweak about Roland GR-77B.

Features and functionality

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The GR-77B is essentially a controller for a separate synth module, converting pitch into control signals using special pickups and electronics.
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The GR-77B is essentially a floor unit housing the Roland JX-8P synth engine, which can be emulated via Roland Cloud or the JX-08 boutique version.
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Comparisons

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The GR-77B tracking is considered inferior to the GR300 due to its poor pitch bend transmission over MIDI.
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Compared to the analog GR300, the GR700 (paired with the GR-77B) offers MIDI out but at the cost of higher latency.
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The Roland Bass Station 2 is praised for live bass synth performances as an affordable alternative to achieving similar sounds as the GR-77B.
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User experience

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Owners find the build quality of the bass version slightly better than the guitar version, noting stability as a key factor.
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Use cases and applications

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The GR-77B is praised for its "cyberpunk" aesthetic, appealing to those seeking futuristic or unique instrument designs.
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Setup and maintenance

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Bass frequencies on the GR-77B require a clean playing style and may experience latency, particularly when using divided pickups like the GK-3B for MIDI conversion.
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Software and compatibility

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Users recommend converting bass signals to MIDI using devices like Sonuus boxes for compatibility with GR-77B synth sounds.
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Critic Reviews

Roland GR-700 and GR-77B Guitar Player June 1986 by Tom Mulhern Product Review

joness.com

The Roland GR-77B may shine with its sophisticated circuitry and broad range of editable sounds, yet it stumbles with its limited MIDI functionality and pitch-bend transmission issues, which can frustrate players accustomed to expressiveness. While it’s touted for its fat, analog sound and ease of use, the reliance on clean playing to achieve optimal results can alienate those with a more aggressive style. The lack of MIDI input restricts its versatility, making it a one-way street for sequencing. Overall, the GR-77B offers potential but requires patience and a specific playing style to truly shine.

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Artist usage

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Mark Hoppus

Singer, Bassist

Blink-182

Verified via YouTube

In 2020, Mark Hoppus did a reaction video on the (Blink 182) MTV Untitled Album. In the MTV video (at 28min 24sec) Mark says “Hey! That’s my Roland synth bass. That and somebody was asking me on Discord or on Twitch or on somewhere about the basses used in ‘Always.’ And I went out with Jerry Finn to this place called …what was it called … Black Market …Music. It was on La Cienega …it was this place where you could buy old gear and we went there just looking for music gear and I found that bass to play on ‘Always’ cuz it was like a bass that you plug in to this giant pedal board that puts out these synth sounds (Roland GR-77b). And so that’s the bass.” The YouTube video: https://www.youtube.com/watch?v=llpV2uw-6rY

The Roland GR-77b was the only module that works directly with the Roland G-77 bass guitar.

Black Market Music was located at 841 North La Cienega Boulevard, West Hollywood California 90069.