
Boss GP-10 Guitar Processor (GP10GK)
Boss GP-10 Guitar Processor (GP10GK), COSM Powered Instrument Modeling, 13-Pin Input For Guitars With GK Pickup
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Boss - GP10 Guitar Processor (GP10GK)

Unlimited Sonic PossibilitiesThe Boss GP-10 gives you a world of amazing tones and tunings at your fingertips, all in one compact processor that’s affordable and easy to use. If your guitar features a Roland GK-compatible pickup, the GP-10 can transform your sound into several classic electric and acoustic guitar types, basses, and even analog-modeled synths, such as the legendary Roland GR-300.
You also have instant access to altered tunings, including open tunings, 12-string tones, and “down” tunings that are essential for today’s ultra-heavy rock styles. The versatile GP-10 also works as a full-featured multi-effects processor for both GK and normal pickups, giving you a huge range of COSM amps and effects for live playing and studio recording.
Along with all this, USB connectivity allows you to capture GP-10 tones straight into your DAW, you can also play computer-based soft synths from your guitar with the GP-10’s guitar-to-MIDI convertor!
Amazing Features
• Instant access to down tunings, open tunings, 12-string sounds, and your own custom tunings
• 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
• Create totally new sounds by blending modeled and normal guitar tones together
• High-quality COSM amps and multi-effects derived from the GT-100
Perfect For Stage & Studio Use

Incredible VersatilityThe compact GP-10 is an instrument modeling processor and a powerful multi-effects unit. The multi-effects section features flagship-level COSM amps and effects, which can all be used with any guitar using 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 enables the instrument modeling section, opening up a world of incredible sonic possibilities for both live and in the studio.
Change Your Guitar's Tuning Instantly

No Need To Change InstrumentsWith a GK-compatible pickup, the GP-10 lets you to change your guitar’s tuning at the press of a pedal. Without needing 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 eye opening 12-string tones, or drop your entire guitar down in semitone steps for huge, crushing riffs. There are several tuning presets to choose from, you can also create your own customized tunings for any application.
A World-Class Collection

Classic Guitars, Synths & More!Along with instant tuning changes, using a GK-compatible pickup with the GP-10 lets you change the instrument’s whole sound. Access to 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 comes with an impressive analog-modeled synth engine that powers an authentic emulation of the well known Roland GR-300 analog guitar synth and a super-fat OSC Synth with two oscillators and many easy to edit sound parameters. In addition, a range of cool “Poly FX” deliver unique sounds only possible with GK processing, allowing you to take your playing into exciting new places. Modeled sounds can be blended with your guitar’s natural sound, putting an infinite range of tones under your fingers.
Natural & Ultra-Responsive Cosm AmpsA 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 natural, responsive tones, with adjustable settings to shape 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-EffectsInside the GP-10 is a wide selection of flagship effects taken 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, along with intelligent harmony and other incredbile sounding effects. The integrated expression pedal can be used for foot volume or effects such as wah, Pedal Bend, and more.
USB Audio/MIDI Interface Built In

Further PossibilitiesThe GP-10 comes with an onboard USB audio/MIDI interface, making it easy to record great amp and effect tones in your favorite DAW with any guitar. When you use a GK-equipped guitar, the GP-10 becomes an immensely powerful creative tool that upgrades your production capabilities beyond any standard guitar processor.
For example, you can record the audio output of each of your guitar’s strings on individual tracks, processed either 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” too, 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 expand 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 & Boss Tone Central

Free DownloadAvailable as a free download, the BOSS TONE STUDIO software makes it easy to edit and organize your GP-10 patches on your Mac or Windows computer.
Along with this, 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 best guitarists.
GK Pickup Options For The GP-10

Meet Your NeedsDepending on what you need, 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.
Boss GP-10 Sound Examples

The Tech Spec
Features | Specification | 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) |
Dimensions | Width: 251 mm Depth: 207 mm Height: 71 mm |
Weight | 1.9 kg 4 lbs. 4 oz. |