Boss GR-55 Guitar Synthesizer with GK-3 Pick Up, Black

SKU: BSGR55GKBK MFR: GR-55GK-BK
Earn VIP Reward Points

Key Features

  • Unleash a universe of sounds with 910 PCM tones and 23 modeling tones on this guitar synthesizer.
  • Explore diverse sonic textures using the GR-55's 20 multi-effects and 42 amp models for your guitar.
  • Craft and save your unique sounds with 297 user patches in both guitar and bass modes on this unit.
  • Experience pristine audio quality with 24-bit AD/DA conversion for nuanced guitar performances.
  • Seamlessly integrate with your setup using MIDI, USB, and standard 1/4" output jacks on this pedal.
  • The included GK-3 divided pickup ensures precise tracking and dynamic response for expressive playing.
See More Product Details
Special Order?Estimated to Ship: 09/10/2025
Free Shipping

See Options

1

Protect your gear with Adorama Protect.* Learn more

2 Year

$139.99

3 Year

$184.99

5 Year

$339.99

Available to U.S. customers only.

Need help? Ask our experts.

Overview
Compare
Compatibility
Accessories
Specs
Protection
Q&A

Questions & Answers

Shopper : Why Did You Choose This?JIM D : Good reviews

Reviews about this item

Review Summary

Select a plan in the Add Protection section above and purchase with this product by clicking “Add to Cart”.

image-protection

TRUSTED PROTECTION PLANS, EXCEPTIONAL SERVICE.

Invest In Your Gear and Peace Of Mind!

Accidents happen. Protect your favorite Adorama products and purchase a protection plan to stay covered from accidental damage, mechanical or electrical failures, and more.

Repair or Replacement

Repair or Replacement

If we can’t fix it, we’ll replace it at no additional cost.

Accidental Damage

Accidental Damage

Protect your product from drops, spills, and more.

Peace of Mind

Peace of Mind

Enjoy your gear without fear. We have you covered!

Failure Protection

Failure Protection

When regular use of your product over time results in mechanical or electrical failure.

Zero Deductible

Zero Deductible

We will never charge you a deductible after the purchase of a plan.

Customer-Focused Support

Customer-Focused Support

Our claims process is simple & easy and our customer service team is happy to help.

Adorama Protect powered by Extend is available for purchase to customers in the United States. Not available for international or U.S. territories purchases. Plans on open box items do not cover pre-existing damage.
Adorama Protect plans are available for ABS clients. If you have any questions or require assistanse, please call 800-223-2500

Boss GR-55GK-BK Specifications

  • GR-55: Sound Generator

    PCM: 2 tones
    Modeling: 1 tone

  • GR-55: Tones

    PCM: 910 types
    Modeling: 23 types (guitar mode)
    17 types (bass mode)

  • GR-55: 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

  • GR-55: Patch Memory

    Guitar mode
    Preset: 270 + User: 297
    Bass mode
    Preset: 90 + User: 297

  • GR-55: AD Conversion

    24-bit (GK Pickup)
    24-bit + AF method ** (Normal Pickup)

  • GR-55: DA Conversion

    24-bit

  • GR-55: Sampling Frequency

    44.1 kHz

  • GR-55: Nominal Output Level

    OUTPUT jacks: -10 dBu
    GUITAR OUT jack: -10 dBu

  • GR-55: Output Impedance

    OUTPUT jacks: 2 k Ohms
    GUITAR OUT jack: 2 k Ohms

  • GR-55: USB Memory Audio Player

    File Format: WAV, AIFF

  • GR-55: Display

    Graphic LCD 240 x 64 dots

  • GR-55: Connectors

    GK IN connector (13 pins DIN type)
    GUITAR OUT jack (1/4" phone type)
    OUTPUT L/MONO, R jacks (1/4" phone type)
    PHONES jack (Stereo 1/4" 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

  • GR-55: Power Supply

    DC 9 V

  • GR-55: Current Draw

    700 mA

  • GR-55: Accessories

    AC adaptor
    Owner's manual
    Divided pickup (GK-3)
    GK cable (5 m)

  • GR-55: Dimensions (W x D x H)

    405 x 244 x 78 mm (16 x 9-5/8 x 3-1/8")

  • GR-55: Weight

    3.3 kg (7 lbs)

  • GK-3: Controls

    GK Volume
    DOWN/S1 Switch
    UP/S2 Switch
    Select Switch

  • GK-3: Indicator

    Power Indicator

  • GK-3: Connectors

    GK Connector
    Normal Pickup Input Jack

  • GK-3: Accessory

    Normal Guitar Cable Owner's Manual

  • GK-3: Options

    GK Cable: GKC-5 (5 m), GKC-10 (10 m), Unit Selector: US-20GK GK Parallel Cable: GKP-2

  • GK-3: Dimensions Body (W x D x H)

    87 x 74 x 23 mm (3-7/16 x 2-15/16 x 0-15/16")

  • GK-3: Weight Body

    0.1 kg (0.22 lbs)

  • GK-3: Dimensions Pick-up (W x D x H)

    102 x 8 x 9 mm (4-1/16 x 0-5/16 x 0-3/8")

  • UPC Code

    761294503089

20 Accessories for Boss GR-55 Guitar Synthesizer with GK-3 Pick Up, Black

  • All Accessories (20)
  • Cables & Adapters (20)

Designed For Use With:

  • Guitar Pedal

Need Help?

For any questions about compatibility with this product, call us at 800-223-2500 or you can email us any time.

About Boss GR-55GK-BK

A New Era Of Sound, Power, & Performance

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!

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.

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.

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.

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.

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.

GK-3: Turn Your Guitar Into A GK Gear.

The GK-3 Divided Pickup attaches to any steel-stringed electric - no drilling necessary - and delivers accurate performance data to guitar synthesizers such as Roland's popular GR-55. The GK-3's slim-line design enables ideal placement on the guitar.

Boss GR-55GK-BK Features

  • GR-55
  • 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
  • Available with GK-3 Divided Pickup
  • GK-3
  • Mounts easily on any steel-stringed electric without damage to guitar
  • Features an adjustable curve design and pickup cable length
  • Includes attachment plate for Les Paul-type guitars

Product Documents

User Manual

Key Features

  • Unleash a universe of sounds with 910 PCM tones and 23 modeling tones on this guitar synthesizer.
  • Explore diverse sonic textures using the GR-55's 20 multi-effects and 42 amp models for your guitar.
  • Craft and save your unique sounds with 297 user patches in both guitar and bass modes on this unit.
  • Experience pristine audio quality with 24-bit AD/DA conversion for nuanced guitar performances.
  • Seamlessly integrate with your setup using MIDI, USB, and standard 1/4" output jacks on this pedal.
  • The included GK-3 divided pickup ensures precise tracking and dynamic response for expressive playing.

What's in the box:

  • GR-55 Guitar Synthesizer
  • AC Adaptor
  • Owner's Manual
  • GK-3 Divided Pickup
  • GK Cable (5 m)