- A revolutionary fusion of guitar synthesis and powerful COSM guitar modelling
- Up to four sound sources at a time: two PCM synth tones, plus COSM guitar modelling and normal guitar input
- Easy to use and easy to play with hundreds of great, ready-to-use sounds for rock or pop guitarists
- Advanced Roland technology provides superb sound quality and lightning-fast processing
- Over 900 of Roland’s latest fully editable PCM sounds, including pianos, organs, strings, vintage synths, and much more
- COSM guitar and amp modelling
- Two types of multi-effects engines, plus global reverb, chorus, and delay effects, and an on-board looper
- Built-in USB audio player with foot control
- Available with or without GK-3 Divided Pickup
The GR-55’s powerful triple-core engine comprises two PCM synthesizers (with over 900 tones powered by the latest Roland synthesis technology) and COSM guitar modelling, featuring a virtual treasure trove of guitar, bass, amp, and synth models. Together, these combined technologies allow you to create unique, revolutionary sounds. The “Metal Synth Lead” preset, for example, combines two types of thick, brilliant synth textures with an overdriven solid-body/humbucking tone for incredible punch and power.
Thanks to Roland’s decades of research and dedication to guitar synthesizers and powerful new pitch detection technology, the GR-55 is far and away the fastest guitar synth ever. Furthermore, the COSM guitar-modelling engine needs zero detection time, allowing the GR-55 to respond instantly and exactly as you play. The GR-55 detects pitch, velocity, and behaviour for unprecedented response to your performance.
Get ready to rock … and fast! The GR-55 puts you instantly in touch with a huge library of amazing sounds, no editing required. The on-board line-up of ready-to-use presets (270, plus 297 user) takes the pain out of the process, with simple category buttons for finding the perfect sound fast. Choose from hundreds of great presets for pop, rock, and beyond, and kick-start your song or jam with unique, powerful sounds that will turn heads and raise fists.
Easy to Use
If you’re new to the world of technology, fear not. The GR-55 is powerful yet extremely friendly. For customising sounds, the EZ Edit feature (made famous in the GT-10) and large LCD takes the guesswork out of the process. And for those who want to go deep, the GR-55 offers huge array of controllable parameters. Pros will appreciate the power of the GR-55 while beginners will love how quick and easy the unit is to operate.
The GR-55 conveniently bridges the guitarist to the desktop music production world with its two USB ports. The rear-panel port can be used one for MIDI/Audio data communication; the side-panel port is dedicated to real-time playback of audio files from a USB memory device (sold separately). The GR-55 provides foot control of USB audio playback so your hands never need to leave the guitar.
Audio & Video
Introducing the GR-55 Guitar Synthesizer.
GR-55 Steve Stevens Interview
Steve Stevens talks to Roland about the GR-55 Guitar Synthesizer.
Take an in-depth look at the GR-55 Guitar Synthesizer.
GR-55 Jeff Loomis Interview
Jeff Loomis (Nevermore, Sanctuary) talks to Roland about the GR-55 Guitar Synthesizer.
GR-55 Herman Li Interview
Herman Li of DragonForce talks to Roland about his musical beginnings, his influences, and using the GR-55 Guitar Synthesizer live and in the studio.
Alex Hutchings Demo (Part 1)
Alex Hutchings demonstrates the GR-55 Guitar Synthesizer (part 1 of 2).
Alex Hutchings Demo (Part 2)
Alex Hutchings demonstrates the GR-55 Guitar Synthesizer (part 2 of 2).
Alex Hutchings Loop Performance
Alex Hutchings shows off the looping capabilities of the GR-55 Guitar Synthesizer.
Alex Hutchings In-Depth Overview
Alex Hutchings takes us through his live looping setup using the Roland GR-55 Guitar Synthesizer and BOSS RC-300 Loop Station.
Bubby Lewis on the GR-55
Robert “Bubby” Lewis, bass player for Snoop Dogg and Lupe Fiasco, talks to Roland about the GR-55 Guitar Synthesizer.
GT-100/GR-55 Booth Demo
Alex Hutchings demonstrates the GT-100 and GR-55 at Musikmesse 2012.
- Sound Generator
- PCM: 2 tones
Modeling: 1 tone
- PCM: 910 types
Modeling: 23 types (guitar mode)
17 types (bass mode)
- MFX (Multi-Effects): 20 types
AMP (Preamp): 42 types
MOD (Modulation): 14 types
DELAY: 7 types
REVERB: 5 types
CHORUS: 4 types
EQ: 1 type
- Patch Memory
- Guitar mode
Preset: 270 + User: 297
Preset: 90 + User: 297
- AD Conversion
- 24-bit (GK Pickup)
24-bit + AF method ** (Normal Pickup)
- DA Conversion
- Sampling Frequency
- 44.1 kHz
- Nominal Output Level
- OUTPUT jacks: -10 dBu
GUITAR OUT jack: -10 dBu
- Output Impedance
- OUTPUT jacks: 2 k ohms
GUITAR OUT jack: 2 k ohms
- USB Memory Audio Player
- File Format: WAV, AIFF
- Graphic LCD 240 x 64 dots
- GK IN connector (13 pins DIN type)
GUITAR OUT jack (1/4-inch phone type)
OUTPUT L/MONO, R jacks (1/4-inch phone type)
PHONES jack (Stereo 1/4-inch phone type)
MIDI connectors (IN, OUT) (5-pin DIN type)
USB COMPUTER connector (supports Hi-Speed USB, USB MIDI and
USB MEMORY connector (supports Hi-Speed USB Flash Memory)
DC IN jack
- Power Supply
- DC 9 V
- Current Draw
- 700 mA
- AC adaptor
Divided pickup (GK-3) (only for GK included model)
GK cable (5 m) (only for GK included model)
- Options (sold separately)
- Divided pickup: GK-3 (for guitar), GK-3B (for bass guitar)
GK cable: GKC-5 (5 m), GKC-10 (10 m)
MIDI foot controller: FC-300
Unit selector: US-20
- Size and Weight
- 405 mm
- 244 mm
- 78 mm
- 3.3 kg
7 lbs. 5 oz.
- Maximum height: 106 mm
, 4-3/16 inches (When the expression pedal is moved to the minimum).)
* 0 dBu = 0.775 Vrms
** AF (Adaptive Focus) method is a proprietary method from Roland
- In the interest of product improvement, the specifications and/or appearance of this unit are subject to change without prior notice.
Attach the GK-3 Divided Pickup to any steel-stringed electric guitar and expand your sonic palette.
Divided Bass Pickup
Bass players looking to expand their tone palette won’t want to miss Roland’s new GK-3B pickup.
AC Power Adaptor
Connects GK-compatible guitar gear
MIDI Foot Controller
A new standard of power, versatility and innovation for MIDI foot control including bi-directional MIDI data flow to VG-99, patch memory recall, twin expression and control pedals and more.
A floor pedal unit that allows a GK-equipped guitar to control and switch between two GR-compatible devices.
Updates & Drivers
If you have questions about operating your Roland or BOSS product, please log in to MyRoland where you can log an enquiry with one of our product specialists.