Boss GP-10 Guitar Processor with GK-3 Pickup

13-Pin Guitar Multi-Effects Processor with GK-3 Pickup
Boss GP-10 Guitar Processor with GK-3 Pickup image 1
Boss GP-10 Guitar Processor with GK-3 Pickup image 1
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Boss GP-10 Guitar Processor with GK-3 Pickup
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A GK Rig Anyone Can Get Into!

Harnessing the power and potential of Roland's GK technology has never been easier or more affordable than it is with the BOSS GP-10. The GP-10 multi-effects processor lets you use your axe to harness a wide range of guitar, bass, and synth tones, including the classic Roland GR-300! But that's just the beginning. You can easily access alternative tunings and 12-string sounds as well, or tap into a massive collection of COSM amps and effects. Top it off with USB connectivity that lets you send both audio and MIDI to your computer, and there's no limit to what you can do with a BOSS GP-10.

BOSS GP-10 Guitar Processor at a Glance:
  • Tap into tons of cool sounds and alternate tunings with your GK-compatible axe
  • Loaded with COSM powered amps and effects you can use with any guitar
  • USB connectivity lets you expand your sonic palette and record in your favorite DAW
Tap into tons of cool sounds and alternate tunings with your GK compatible axe

When you plug your GK compatible guitar into the BOSS GP-10 multi-effects processor's 13-pin jack, you get access to a whole word of killer tones, sounds, and alternate tunings. For starters, you can switch between standard tuning, drop tunings, open tunings, and even your own custom tunings, all without reaching for your headstock. But that's just the half of it. Next up, there's the plethora of cool sounds GK opens up to you. If you're looking for electric, acoustic, or bass sounds, you'll find them all in the GP-10. But you'll also find incredibly realistic sitar, banjo, fretless guitar, and many synth sounds as well. And when you combine these with your regular guitar sound, you can end up with some truly creative and unique tones.

Loaded with COSM powered amps and effects you can use with any guitar

Okay, so not every axe in even the most high-tech guitarist's collection here at Sweetwater is equipped with a hex pickup. So, what about using your non GK compliant guitars with the BOSS GP-10? No problem. You still get to tap into the GP-10's extraordinary collection of COSM driven amp models and expansive collection of effects. We're talking about absolutely stunning overdrives and distortion tones, not to mention fun and freaky modulation effects, delays, reverb styles, and a unique intelligent harmony generator. Plus, there's an expression pedal onboard that lets you control volume swells, pitch bends, and wah effects.

USB connectivity lets you expand your sonic palette and record in your favorite DAW

BOSS gave the GP-10 USB connectivity to provide you with three very important (and cool) bonuses. First up, by connecting your GP-10 guitar processor to your computer, you get access to all of its sounds via the BOSS Tone Studio editor/librarian application. Not only does this like you go crazy, crafting all new tones in a rich graphic environment, but it lets you access innumerable user presets online. And it gets better still. You can send multi-track audio (including individual string outputs) and MIDI to your favorite software, making it easy to record with the GP-10 tones you love and to play any virtual instruments you can get your hands on.

BOSS GP-10 Guitar Processor Features:
  • An exciting and affordable way to experience the power of Roland's GK guitar technology
  • 13-pin input accommodates guitars equipped with a Roland GK-3 Divided Pickup (included) or other GK-compatible pickups
  • Get instant access to drop tunings, open tunings, custom tunings, and 12-string sounds
  • COSM instrument modeling lets you dial in a wide range of electric, acoustic, and bass guitars
  • Other modeling sounds include sitar, banjo, fretless guitar, and many others
  • Analog guitar synthesizer modeling driven by real-time DSP, which lets you play expressive, ultra-responsive synth tones
  • Create totally new sounds by blending modeled and normal guitar tones together
  • Enjoy a wide selection of high-quality COSM amps and multi-effects derived from the GT-100
  • Standard 1/4" guitar input allows for use of modeled amps and effects with any guitar
  • USB connectivity provides 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
  • Play the GP-10 and another 13-pin GK device at the same time using the GKP-2 Parallel Cable (optional)
  • This version of the GP-10 comes with a GK-3 Divided Pickup
Discover the power of Roland's GK technology with a BOSS GP-10 guitar processor!

Additional Media

Electric Guitar Buying Guide

Tech Specs

Pedal Type Multi-FX
Number of Effects 89
Amp Modeling Yes
Number of Models 30
Inputs 1 x 1/4" (instrument), 1 x 1/8" (aux in)
Outputs 2 x 1/4" (left, right), 1 x 1/4" (guitar out), 1 x 1/8" (headphones)
USB 1 x Type B
Other I/O 1 x 13-Pin DIN (GK pickup equipped guitars), 1 x 1/4" (expression, control pedals)
Computer Connectivity USB
Power Supply Included Yes
Height 2.8"
Width 9.9"
Depth 8.1"
Weight 4.4 lbs.
Manufacturer Part Number GP-10GK

Customer Reviews

Based on 10 reviews
Write your review


Great sound. Easy to use. Cool pedal

GP-10 Exploration

Very interesting interface. You have an effects only with the gt-100 pieces in it. Then there is the synthesizer area with some classic oscillators and modulations with the pedal. Very clean to my ears and not noisy or too noisy. The one area waiting on is there is no windows 10 driver for it, but their testing and working on the windows 10 version and sure it will surface. Basically there is enough easily to keep you busy whether the synth side or effects only as an effects unit. Some of the patches are both and you can program whatever you want mixing. The quality was a surprise just on a basic wah patch that was excellent in its own right. Very powerful abilities but subject as to what you want not what "I" like about it. Worth the cash. Should read up and watch a few videos on installing the gk-3 and what guitar to choose. Very good videos out there to inspire you.

More than just a trimmed down GR-55

I bought a GR-55 as soon as it came out, and have been a big fan. When the GP-10 was announced it seemed to me like a stripped down GR-55 in a smaller package. How wrong I was. True, the GP-10 loses the GR-55's two PCM synth blocks, the looper and the MFX block. It also has 99 user presets instead of 297. But the remaining features have been updated and improved, and in some cases, expanded. And the GP-10 adds a powerful new synthesis block, a harmonist, a string bender, the ability to combine alternate tunings with a 12 string guitar, and more. The GP-10 adds a second built-in control pedal, expandable either to 4 CTL pedals or 2 EXP pedals. I added a Boss FS-7 to give me 4 CTLs, which provide great foot access to the features. The GP-10 is also much more powerful and flexible than the GR-55 for assigning features to buttons/pedals.The re-amping feature is great for recording. The editing software is powerful and intuitive, and allows for sharing presets with others. It also makes the 99 preset memory less of a limitation, as you can create and save as many live sets as you want.Another huge plus for the GP-10 is you can access all the amp and effect models without a 13 pin connector. I have been bypassing the amp block and just using the GP-10 effects in front of my tube amp with great results. So the GP-10 is great for direct-to-PA with a GK guitar or a regular guitar, and a great front end to a guitar amp.Features aside, the GP-10 just sounds better than the GR-55. Less noise, and just better overall sound quality. The COSM models have been refined and are more responsive feeling and realistic sounding. In particular, the new COSM amp models sound great, and the old ones have been significantly improved (and I thought they were good before). While I was able to coax good sounds out of the GR-55, great sounds just seem to leap out of the COSM models in the GP-10. I will still turn to my GR-55 when I want the PCM synths. Otherwise, I'm moving on to the GP-10.The big letdown is lack of CoreMIDI compliance. Let's hope Boss/Roland get on board here with an update.
Music background: Guitarist/singer for 40 years, former MIDI software developer

Very good guitar processor

I previously owned a GR-55 but could never warm up to it. I could not play my other guitars through it which really hurt that unit's value to me. I saw this on Sweetwater and they had a demo unit. Put the pickup on my PRS 10 Top via the double sided tape. So far it is holding up. I run it through my Vox Amp or mostly through my KRK monitors I use with Logic. What Boss did was create a real guitar pedal with some of the great guitar modeling from the GR-55. The Nylon guitar is my favorite and it sounds pitch perfect. The guitar modeling is incredible and the alternate tunings are very, very handy. One thing you can't do is play say a pad effect over a modeled guitar, something you can do on a GR-55. They also stripped down all of the PCM sounds from the GR-55 so you will not be able to play a Tuba on your Les Paul. The software is a must have. The GR-55 had a GUI that someone created and it was all we had. This is the real deal. It is very cool how Boss laid it out as you can place the amp and any effects in either your guitar pickup stream or the modeling stream. I like combing a deep wave synth with a very distorted guitar. Correct placement of the GK3 pickup is key but it tracks extremely well. One thing about the GP-10 is that the midi out is much improved it seems from the GR-55. I can record a nylon guitar from the GP-10 with a backing midi track with strings or a violin in Logic and it tracks perfectly. Then I can plug my Les Paul into the "guitar in" and crank the COSM guitar amps using all of the Boss effects glory. I need to find a batter way to mount the pickup though. The tape will start to wear down and I rest my palm over where the GK3 pickup is on my PRS. I'm not going to drill holes in my guitar so I need to figure something out. This is the last pedal I will buy for awhile. You need some basic understanding of synth like oscillators and wave forms to really get some crazy sounds. The download tone section of the software is very cool as it incorporates directly into your patch list. Very easy and clean to use interface. I hope this helps anyone who wants to come back to a guitar synthesizer that may have left the GR-55.
Music background: Hobbyist

Finally it works

Amazing piece of gear. I use it almost exclusively as an alternate tuning device, with the rest of my sound coming from other pedals and amps. It does the job amazingly well. Best part is I have it installed on a 7 string guitar - which, even though you can't use the divided pickup with all seven strings, means I can have modeled 6 string sounds, and/or my real seven string sound at the flick of a switch. Line 6 Variaxs can't do that. Plus the COSM sounds have come a long way. I use the internal amp modeling for practice and it works great. Not as good as my live rig, but great for quiet practice or smaller gigs.
Music background: Professional gigging musician and teacher
See also: Guitar Synths, Boss, Boss MIDI Guitars/Pickups, Boss Multi-effects