Boss GM-800 Guitar Synth
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Essential Information About the BOSS GM-800 Multi-Effects/Synthesizer
Essential Information About the BOSS GM-800 Multi-Effects/Synthesizer
- Next-generation guitar/bass synthesis with Serial GK interface (requires a divided pickup GK-5/GK-5B + BGK cable or GK-3/GK-3B with GKC-AD converter).
- ZEN-Core engine inherited from Roland's professional synthesizers, over 1,200 sounds and 70 kits, organized by "Scenes" (4 Tones parts + 1 Rhythm part).
- Ultra-stable tracking and natural playability thanks to high-performance DSP, splits by strings and fret zones, creative layering.
- USB audio/MIDI interface and standalone MIDI module, stereo outputs, inputs for control/expression pedals for full pedalboard integration.
Manufacturer Information
Boss
https://www.roland.com
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Roland Central Europe N.V.
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From the GR/SY Lineage to the ZEN-Core Platform
The GM-800 continues the legacy of Roland's famous guitar synthesizers and takes a leap forward by incorporating ZEN-Core technology. This architecture combines advanced modeling and modern PCM synthesis in a compact stage format, with a "Scenes" logic that facilitates instant changes and sophisticated sound combinations.
Who Is It For and What For?
Ideal for curious guitarists and bassists as well as professionals in the studio and on stage, the GM-800 covers a spectrum ranging from pop, rock, and metal to ambient textures, electro, and soundtrack music. It suits modern pedalboards thanks to its stereo outputs and control inputs, and integrates easily into a rig via USB audio/MIDI or as a versatile MIDI module.
Controls and Connectivity Serving Creativity
Each Scene stacks up to four Tones parts plus one Rhythm part, each with its dedicated multi-effects, EQ, reverb, and chorus/delay, while two Scene MFX can be routed in series or parallel. The large LCD screen facilitates navigation. Connectivity includes Serial GK IN/OUT (for BGK cable), L/Phones and R/Mono outputs, ports for control and expression pedals, USB computer port (audio/MIDI), USB Memory, and MIDI DIN for controlling or being controlled. The Guitar to MIDI function opens the door to virtual instruments and re-synthesis in a DAW.
Sound
From pianos, organs, and strings to classic analog-style sounds like "JUPITER" and "JUNO," the GM-800 offers a rich palette, responsive to touch and pick dynamics. String/zone splits allow intelligent layering (bass in the lows, piano/synth in the highs), with clear articulation and precise pitch tracking for expressive parts, whether melodic, percussive, or orchestral.
Technical specifications
| Effects | Reverb, Delay, Multi-effects, EQ, Compressor, Chorus, Modeling Processor | Type | sector |
| Format | Desktop | Use | electric guitar |
| Number of tracks | 5 | Color | Blue |
| EQ | Yes | ||
| Sound Generator | ZEN-Core | GK IN Jack | 1/4-inch TRS jack (for BGK cable only) |
| Parts | 5 parts (4 playing + 1 rhythm) | GK OUT Jack | 1/4-inch TRS jack (for BGK cable only) |
| Scenes | 150 | OUTPUT (L/PHONES) Jacks | 1/4-inch TRS jack |
| Preset Tones | 1,200 or more | OUTPUT (R/MONO) Jack | 1/4-inch jack |
| Preset Drum Kits | 70 or more | CTL3, 4/EXP1, CTL5, 6/EXP2 Jacks | 1/4-inch TRS jack |
| Imported Tones | 256 | USB Computer Port | USB B (high-speed USB, USB audio, and USB MIDI) |
| Part Multi-Effects | 1 system per part, 93 types | USB MEMORY Port | yes |
| Part EQ | 1 system per part | MIDI Connectors | IN, OUT |
| Reverb | 7 types | DC IN Jack | yes |
| Chorus/Delay | 9 types | External Memory | USB flash drive (sold separately) |
| Scene MFX | 2 systems (series or parallel), 93 types | AC Adapter | PSB-1U (included) |
| Master EQ / Comp | yes | Power Consumption | 840 mA at 9 V DC |
| LCD Screen | 256 x 80 dots | ||
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Customer reviews
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I've been playing guitar for a long time
Originally I wanted to play piano
With the boss GM800 I am thrilledAutomatically translated
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Efficient and simple.
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Questions frequently asked
Does the Boss GM-800 require a GK pickup?
The GK IN input uses a 6.35 mm TRS jack and works only with a BGK cable. The connection is designed to utilize the pitch tracking and string-by-string performance of the GK system.
How many sounds and parts can be layered?
Each Scene includes 5 parts: 4 playing parts and 1 rhythm part. The ZEN-Core engine features over 1,200 preset tones, more than 70 drum kits, and 256 slots for imported sounds.
Can this guitar synthesizer control music software via MIDI?
The Guitar to MIDI function allows control of virtual instruments and resynthesis within a DAW. The USB B port handles audio and MIDI communication with a computer, while the MIDI DIN IN and OUT connectors provide additional hardware integration.
What effects are available on the GM-800?
Each part has a multi-effect among 93 types and a dedicated equalizer. Two Scene MFX, also selectable from 93 types, can be routed in series or parallel, with 7 types of reverb and 9 types of chorus/delay.
What audio outputs and control pedals are provided?
The L/PHONES output on a 6.35 mm TRS jack and the R/MONO output on a 6.35 mm jack allow stereo or mono use. CTL3, 4/EXP1, CTL5, and 6/EXP2 jacks accommodate external switches and expression pedals.
