GP-10 Guitar Processor


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Boss GP-10 Guitar Processor 

Hear directly from the source about the Boss GP-10 Guitar Processor:

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 converter!

  • 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)


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


Learn about Coffey Music!

Coffey Music is an independently owned and operated full service music store located directly on Main Street in Westminster, MD. We have been serving Carroll County Maryland since 1984 and in that time have grown to become Carroll County’s largest and best music store!


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