BOSS GP10GK - Guitar Processor

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The new GP-10 puts a universe of amazing tones and tunings at your command all in one compact processor thatrs 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 ldquo;downrdquo; tunings that are essential for todayrs 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-10rs guitar-to-MIDI convertor!

  • 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
  • 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)
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.


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.

n>Size and WeightWidth251 mm
9-15/16 inchesDepth207 mm
8-3/16 inchesHeight71 mm
2-13/16 inchesWeight1.9 kg
4 lbs. 4 oz.<dt class=\