GP-10

Guitar Processor

Where to Buy

Unlimited Sonic Possibilities

The new GP-10 puts a universe of amazing tones and tunings at your command, all in one compact processor that’s affordable and easy to use. With a Roland GK-compatible pickup on your guitar, the GP-10 lets you transform your sound into numerous classic electric and acoustic guitar types, basses, and even analog-modeled synths, including the legendary Roland GR-300. Not stopping there, you have access to instant altered tunings, including popular open tunings, 12-string tones, and “down” tunings that are essential for today’s ultra-heavy rock styles. The versatile GP-10 also functions as a full-featured multi-effects processor for both GK and normal pickups, giving you a huge selection of COSM amps and effects for live playing and studio recording. In addition, USB connectivity lets you capture GP-10 tones directly into your DAW, and you can even play computer-based soft synths from your axe with the GP-10’s guitar-to-MIDI convertor!

Standard Features

  • Instant access to down tunings, open tunings, 12-string sounds, and your own custom tunings
  • Instrument modeling powered by COSM technology, including conventional electric, acoustic, and bass guitars, plus sitar, banjo, fretless guitar, and others
  • Analog guitar synthesizer modeling driven by real-time DSP allows you to play expressive, ultra-responsive synth tones
  • Create totally new sounds by blending modeled and normal guitar tones together
  • High-quality COSM amps and multi-effects derived from the GT-100
  • 13-pin input for guitars equipped with a Roland GK-3 Divided Pickup or other GK-compatible pickup
  • Standard 1/4-inch guitar input allows for use of amps and effects with any guitar
  • USB audio/MIDI interface for multi-channel audio recording (including individual string output) and guitar-to-MIDI conversion with GK pickup
  • BOSS TONE STUDIO editor/librarian for Mac/Windows and custom patches available at bosstonecentral.com
  • Download and share Livesets at BOSS Tone Exchange
  • Available with or without a GK-3 Divided Pickup
  • Play the GP-10 and another 13-pin GK device at the same time using the GKP-2 Parallel Cable (optional)

  • Download “BOSS TONE STUDIO for GP-10” for Windows/macOS

GP-10Guitar Processor

Incredible Versatility for Stage and Studio Playing

The compact GP-10 is both an instrument modeling processor and a powerful multi-effects unit. Its multi-effects section features flagship-level COSM amps and effects, and these can be used with any guitar via a standard 1/4-inch cable. Plugging into the GP-10’s GK input with a Roland GK-compatible pickup and a 13-pin cable unlocks the instrument modeling section, opening up a world of amazing sonic possibilities for both live playing and studio recording.

Instantly Change Your Guitar’s Tuning

With a GK-compatible pickup, the GP-10 allows you to change your guitar’s tuning with the press of a pedal. There’s no need to change instruments or manually re-tune for different songs or styles—just dial up the tuning you need in the GP-10 and go. Play slide in open tunings like G and E, enjoy shimmering 12-string tones, or drop your entire guitar down in semitone steps for massive, ultra-heavy riffs. There are many tuning presets to choose from, and you can also create your own customized tunings for any application.

A World-Class Collection of Classic Guitars, Synths, and More

In addition to instant tuning changes, using a GK-compatible pickup with the GP-10 lets you change your instrument’s entire sound as well. On hand are classic modeled electric guitars with single coils and humbuckers, plus steel- and nylon-string acoustics, basses, banjo, resonator, fretless guitar, and even a sitar! The GP-10 also includes an impressive analog-modeled synth engine that powers an authentic emulation of the famous Roland GR-300 analog guitar synth and a super-fat OSC Synth with two oscillators and many easily adjustable sound parameters. In addition, a selection of cool “Poly FX” deliver unique sounds only possible with GK processing, allowing you to take your playing into exciting new territory. Modeled sounds can be blended with your guitar’s normal sound, putting an infinite range of tones under your fingers.

Natural, Ultra-Responsive COSM Amps

A core factor that defines an electric guitar’s sound is the amplifier type, and the GP-10 is filled with them. 30 different amps are at your disposal, including classic combos, vintage stacks, and modern high-gain amps, along with bass amps for modeled bass tones and a full-range amp for acoustic sounds. Powered by custom BOSS DSP and the latest developments in COSM technology, the amps in the GP-10 deliver organic, responsive tone, with adjustable settings to vary the natural compression and playing feel. All the GP-10’s amps can be used with either normal guitars or those equipped with a GK pickup.

High-Performance Multi-Effects

Inside the GP-10 is a wide selection of flagship effects derived from the GT-100. Most can be used with a normal guitar (without a GK pickup), allowing the GP-10 to do double-duty as an effects processor for any guitar gig. Included are overdrives, distortions, mod effects, delay, reverb, and more, as well as intelligent harmony and other great effects. The onboard expression pedal can be used for foot volume or effects such as wah, Pedal Bend, and others.

USB Audio/MIDI Interface Built In

The GP-10 features an onboard USB audio/MIDI interface, making it easy to record great amp and effect tones in your favorite DAW with any axe. But when you use a GK-equipped guitar, the GP-10 becomes an enormously powerful creative tool that expands your production capabilities beyond any standard guitar processor. For example, you can record the audio output of each of your guitar’s strings on separate tracks, either processed with the GP-10 or captured dry for later processing. When you record unprocessed sounds in this way, you have the ability to not only re-amp the tracks through the GP-10’s amps, but to “re-guitar” as well, using the GP-10’s instrument modeling to change the sound to anything you want after the fact! The guitar-to-MIDI function allows you to stretch your creativity even further, using your guitar to play soft synths, capture MIDI sequences, and input MIDI data into notation software on your computer.

BOSS TONE STUDIO and BOSS TONE CENTRAL

Available as a free download, the BOSS TONE STUDIO software makes it simple to edit and organize your GP-10 patches on your Mac or Windows computer. In addition, the software provides direct access via USB to the BOSS TONE CENTRAL website, which offers a continually growing collection of free, ready-to-play GP-10 patches created by some of the world’s top guitarists.

GK Pickup Options for the GP-10

Depending on your needs, the GP-10 is available by itself (GP-10S), or with a Roland GK-3 Divided Pickup and 13-pin cable included in the box (GP-10GK). If you already have a GK-3 on your guitar—or if you have an instrument such as the GC-1 GK-Ready Stratocaster® with a GK pickup built in—you’ll want to choose the GP-10S. If you want to use the GP-10’s modeling functions and you don’t have a GK-3, the GP-10GK is the way to go. The GK-3 is quick and easy to install on your favorite electric guitar with no modification needed.

Andrew Groves demonstrates the GP-10
and shows off some of his custom
BOSS TONE CENTRAL patches.

Explore More Videos
Modeling
Electric guitar: 12 types
Acoustic: 9 types
Bass: 3 types
Guitar synthesizer: 3 types
Poly FX: 5 types
Alternate Tuning
OPEN: D, E, G, A
DROP: D to A
D-MODAL
NASHVILLE
SHIFT: -12 to +12
USER
12-string guitar function
Effects
Preamp: 30 types
FX: 16 types (including OD/DS)
OD/DS: 21 types
Wah: 6 types
Chorus: 3 types
Delay: 10 types
Reverb: 7 types
EQ: 1 type
Noise Suppressor(NS): 1 type
Patch Memory
99
AD Conversion
GK Pickup: 24 bits
GUITAR IN: 24 bits + AF method
DA Conversion
24 bits
Sampling Frequency
44.1 kHz
Nominal Input Level
GUITAR INPUT: -10 dBu
AUX IN: -20 dBu
Input Impedance
GUITAR INPUT: 1 M ohm
AUX IN: 27 k ohms
Nominal Output Level
OUTPUT L/MONO, R: -10 dBu
GUITAR OUT: -10 dBu
PHONES: -10 dBu
Output Impedance
OUTPUT L/MONO, R: 2 k ohms
GUITAR OUT: 2 k ohms
PHONES: 44 ohms
Recommended Load Impedance
OUTPUT L/MONO, R: 20 k ohms or greater
GUITAR OUT: 20 k ohms or greater
PHONES: 16 ohms or greater
Pedals
Pedal switch x 4
Expression pedal x 1
Display
16 characters, 2 lines (backlit LCD)
Connectors
GK IN connector: 13-pin DIN type
GUITAR IN jack: 1/4-inch phone type
GUITAR OUT jack: 1/4-inch phone type
OUTPUT (L/MONO, R) jacks: 1/4-inch phone type
PHONES jack: Stereo miniature phone type
AUX IN jack: Stereo miniature phone type
EXP 2/CTL 3, 4: 1/4-inch TRS phone type
USB port: USB type B
DC IN jack
Power Supply
AC adaptor
Current Draw
350 mA
Accessories
AC adaptor
Owner's manual
Leaflet "USING THE UNIT SAFELY"
Divided pickup (Roland GK-3) (only for GK included model)
GK cable (3 m, 10 feet) (only for GK included model)
Options (sold separately)
Divided pickup: Roland GK-3
GK cable: Roland GKC-5 (5 m), GKC-10 (10 m)
GK parallel cable (GK pickup <--> GK connector x 2): Roland GKP-2
Unit selector: Roland US-20
Footswitch: FS-5U
Dual footswitch: FS-6, FS-7
Expression pedal: Roland EV-5, FV-500L/500H
Size and Weight
Width
251 mm
9-15/16 inches
Depth
207 mm
8-3/16 inches
Height
71 mm
2-13/16 inches
Weight
1.9 kg
4 lbs. 4 oz.
Size and Weight (Maximum height:)
Width
251 mm
9-15/16 inches
Depth
207 mm
8-3/16 inches
Height
93 mm
3-11/16 inches
Weight
1.9 kg
4 lbs. 4 oz.
* 0 dBu = 0.775 Vrms
ASIO
ASIO is a trademark and software of Steinberg Media Technologies GmbH.
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Support

If you have questions about operating your BOSS product, please check our Knowledge Base for answers to the most common questions.
You can also contact our Product Support department by phone or email.
In addition, we have a library of Owner’s Manuals and Support Documents that you can download and reference.

Owner’s Manuals