Roland GR-55 Brochure
Guitar Synthesizer
A New Era of Sound, Power, and Performance
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A revolutionary fusion of guitar synthesis and
powerful COSM® guitar modeling
Up to four sound sources at a time: two PCM synth
tones, plus COSM guitar modeling and normal guitar
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
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The Roland GR-55 is a revolution in guitar
synthesis, with features never before available in
any guitar processor. In terms of speed, it’s the
fastest ever. It’s also the most accurate, thanks to
newly developed pitch-detection technology.
As for sound, the triple-core generator houses
a world-class array of virtual guitars, basses,
amps, and synth voices, enabling tones and
textures that have never been heard before.
Onstage or in the studio, you can instantly access
the GR-55’s huge library of ready-to-use sounds,
from pop to rock and beyond, with quick-access
category buttons. Welcome to a groundbreaking
new era in guitar synthesis!
Over 900 of Roland’s latest fully editable PCM sounds,
including pianos, organs, strings, vintage synths, and
much more
COSM guitar and amp modeling
Two types of multi-effects engines, plus global reverb,
chorus, and delay effects, and an onboard looper
GR-55 is a MIDI controller that connects to other
instruments and software
Built-in USB audio player with foot control
Available with or without GK-3 Divided Pickup
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New Sound Possibilities
Instant Gratification
The GR-55’s powerful triple-core engine comprises two PCM
synthesizers (with over 900 tones each powered by the latest
Roland s ynthesis technology) and COSM guitar modeling, 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.
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 onboard lineup 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 customizing 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 a 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.
Lightning-Fast Tracking
Thanks to Roland’s decades of research and dedication to guitarsynthesizers and powerful new pitch detection technology, the
GR-55 is far and away the fastest guitar synth ever. Furthermore,
the COSM guitar-modeling engine needs zero detection time,
allowing the GR-55 to respond instantly and exactly as you play.
The GR-55 detects pitch, velocity, and behavior for unprecedented
response to your performance.
USB Connectivity
The GR-55 conveniently bridges the guitarist to the desktop musicproduction world with its two USB ports. The rear-panel port can
be used 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.
Kit Variations
Kit Contents
For Guitarists
Play naturally with a guitar pick...
…or with your fingers.
Complete Kit
For Bassists
Kit without GK Pickup GR-55
for GK+Pickup Users
for GK-Ready Guitar Users
GK-3B Divided Pickup
(for bass)
GK-3 Divided Pickup
(for guitar)
GR-55 Specifications
■ Sound Generator PCM: 2 tones, Modeling: 1 tone ■ Tones PCM: 910 types, Modeling: 23 types (guitar
mode), 17 types (bass mode) ■ Effects 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, Bass mode: Preset: 90 + User: 297 ■ AD Conversion 24-bit (GK
Pickup), 24-bit + AF method (Normal Pickup) * AF method (Adaptive Focus method) / This is a proprietary
method from Roland & BOSS that vastly improves the signal-to-noise (S/N) ratio of the A/D and D/A
converters. ■ DA Conversion 24-bit ■ Sampling Frequency 44.1 kHz ■ Nominal Output Level OUTPUT
jacks: -10 dBu, GUITAR OUT jack: -10 dBu ■ Output Impedance OUTPUT jacks: 2 kΩ, GUITAR OUT jack: 2 kΩ
■ USB Memory Audio Player File Format: WAV, AIFF ■ Display Graphic LCD 240 x 64 dots ■ Connectors
GK IN connector (13-pin 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 Audio), USB MEMORY connector
(supports Hi-Speed USB Flash Memory), DC IN jack ■ Power Supply DC 9 V ■ Current Draw 700 mA ■
Dimensions 405 (W) x 244 (D) x 78 (H) mm / 16 (W) x 9-5/8 (D) x 3-1/8 (H) inches, Maximum height: 405
(W) x 244 (D) x 106 (H) mm / 16 (W) x 9-5/8 (D) x 4-3/16 (H) inches ■ Weight 3.3 kg / 7 lbs 5 oz
(excluding AC adaptor) ■ Included Accessories AC adaptor, Owner’s manual, Divided pickup (GK-3)
(only for GK included model), GK cable (5 m) (only for GK included model) ■ Options 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
* 0 dBu = 0.775 Vrms
* The specifications are subject to change without notice.
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