Price updated 22 Apr 2026, 10:00
Boss GM-800 Guitar Synthesizer
Best available price
£575.00
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Strong Buy· 13% below 90d avg
90d Low
£558.25
Best seen
90d High
£759.00
Worst seen
90d Average
£658.63
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Strong Buy· 13% below 90d avg
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Product Description
- Boss GM-800 Guitar Synthesizer
- Guitar and Bass Synthesizer
- Next-generation guitar and bass synthesizer with newly developed serial GK interface
- Roland ZEN-Core synthesizer sound engine
- Natural playing feel and reliable tracking stability thanks to powerful DSP
- Over 1200 tones and 70 rhythm sounds
- 150 User scenes
- A total of over 90 effect types available in each scene
- Serial GK expansion jack for connecting an additional BOSS guitar synthesizer
- USB audio/MIDI connection and standard MIDI input and output
- Also works as a stand-alone synth sound module for MIDI keyboard or DAW sound expansion
- Edit scenes and organise sounds on computer with BOSS Tone Studio
- Display: Graphic LCD 256 x 80 pixels
- Controls: 1 - 4
- Select
- Output Level
- Push buttons: Part 1 - 4
- Part R
- Exit
- Write
- Menu
- Page Left and Right
- Foot switch: Scene Up
- Scene Down
- CTL 1
- CTL 2
- LED: Scene Up
- Scene Down
- CTL 1
- CTL 2
- Current consumption: 840 mA
- Power supply with a 9 V DC mains adapter (included)
- Dimensions: (W x D x H): 246 x 134 x 63 mm
- Weight: 1200 g@+*Connections:*
- GK input and output: 2 x 6.3 mm stereo jack (only for BGK cable)
- Output L / headphones: 6.3 mm stereo jack
- Output R / mono: 6.3 mm stereo jack
- CTL3 and 4 / Exp 1: 6.3 mm stereo jack
- CTL5 and 6 / Exp 2: 6.3 mm stereo jack
- USB B
- MIDI input and output
- Power supply connection: Barrel connector 5.5 x 2.1 mm, centre negative@+*Note -* Required for operation: A split pickup from the GK series (Boss GK-5 Guitar Synth Pickup
- Art.#571644# or Boss GK-5B Bass Synth Pickup
- Art.#571646#) - not included
- A 6.3 mm stereo jack cable (Boss BGK-15 Serial GK Cable
- Art.#571693# or BGK-30 Serial GK Cable
- Art.#571697#) - not included
