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  • GR55SBK

    Roland GR-55S Guitar Synthesizer

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    The Roland GR-55S Guitar Synthesizer is packed with revolutionary features never seen before in any guitar processor. In terms of speed, it’s also the fastest ever. It’s also the most accurate, thanks to newly developed pitch-detection technology.

      • Roland GR-55S Product Features:

        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!

        New Sound Possibilities

        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 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.

        Lightning-Fast Tracking

        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-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.

        Instant Gratification

        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 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.

        USB Connectivity

        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.

        • 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 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 modeling
        • Two types of multi-effects engines, plus global reverb, chorus, and delay effects, and an onboard looper
        • Built-in USB audio player with foot control
        • Available with or without GK-3 Divided Pickup

      • Roland GR-55S Technical Specifications:

        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

        Bass mode

        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 Audio)

        USB MEMORY connector (supports Hi-Speed USB Flash Memory)

        DC IN jack

        Power Supply

        DC 9 V

        Current Draw

        700 mA


        AC adaptor

        Owner's manual

        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



        405 mm

        16 inches


        244 mm

        9-5/8 inches


        78 mm

        3-1/8 inches


        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 & BOSS that vastly improves the signal-to-noise (S/N) ratio of the A/D and D/A converters.

        In the interest of product improvement, the specifications and/or appearance of this unit are subject to change without prior notice.

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