The GM-800 elevates guitar synthesis into a new age of natural playability and boundless creative range. Driven by the newly developed Serial GK interface, the advanced ZEN-Core sound engine unlocks any sound imaginable—from acoustic instruments to classic and modern synths—while high-performance DSP delivers tracking stability and expressive scope never before possible. Freely combine and edit Tones with the intuitive Scene workflow, color sounds with a huge selection of effects, and explore a universe of fresh content on Roland Cloud. Compact, streamlined, and ultra-versatile, the GM-800 infuses your guitar or bass with unlimited musical potential.
For optimal performance, stay up to date with the current GM-800 system software and BOSS Tone Studio
Download “BOSS TONE STUDIO for GM-800” for Windows/macOS
- Next-generation guitar and bass synthesizer with the newly developed Serial GK interface
- Advanced ZEN-Core sound engine derived from flagship Roland synthesizers
- Natural playing feel and solid tracking stability, realized through high-performance DSP
- Powerful Scene workflow with four Tones plus Rhythm
- Vast onboard sound library with over 1200 Tones and 70 Rhythm sounds
- Explore Sound Packs, Wave Expansions, legendary Roland instruments, and more on Roland Cloud
- Deep editing tools for each Tone, including sound parameters, sensitivity settings, and more
- 150 user-configurable Scenes, including 100 Scenes with professional ready-to-play sounds
- Over 90 total effect types available in each Scene
- Space-saving design flows into every setup, from pedalboard to desktop
- Serial GK expansion jack for connecting to another BOSS guitar synthesizer product
- Two external control jacks, each with support for up to two footswitches or an expression pedal
- USB audio/MIDI connectivity and standard MIDI I/O
- Guitar to MIDI function for playing external MIDI instruments via USB or a MIDI cable
- Also functions as a standalone synthesizer sound module for MIDI keyboard use or DAW sound expansion
- Edit Scenes and organize sounds on your computer with BOSS Tone Studio
- Download and share GM-800 Livesets at BOSS Tone Exchange*
*For sharing on BOSS Tone Exchange, Scenes in Livesets must be created using the internal GM-800 sounds.