---
product_id: 544461309
title: "BOSS GM-800 Compact, Streamlined, and Ultra-Versatile Guitar Synthesizer"
brand: "boss"
price: "VT362245"
currency: VUV
in_stock: true
reviews_count: 5
category: "Boss"
url: https://www.desertcart.vu/products/544461309-boss-gm-800-compact-streamlined-and-ultra-versatile-guitar-synthesizer
store_origin: VU
region: Vanuatu
---

# Serial GK interface for seamless guitar-to-synth connection 80+ onboard effects for endless tonal customization ZEN-Core engine powers ultra-realistic synth sounds BOSS GM-800 Compact, Streamlined, and Ultra-Versatile Guitar Synthesizer

**Brand:** boss
**Price:** VT362245
**Availability:** ✅ In Stock

## Summary

> 🎸 Unlock your guitar’s hidden universe with the GM-800 — where innovation meets pure playability.

## Quick Answers

- **What is this?** BOSS GM-800 Compact, Streamlined, and Ultra-Versatile Guitar Synthesizer by boss
- **How much does it cost?** VT362245 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.vu](https://www.desertcart.vu/products/544461309-boss-gm-800-compact-streamlined-and-ultra-versatile-guitar-synthesizer)

## Best For

- boss enthusiasts

## Why This Product

- Trusted boss brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Compact Powerhouse:** Streamlined design fits effortlessly into any pedalboard setup without sacrificing performance or durability.
- • **Next-Level Sound Engine:** Harness the cutting-edge ZEN-Core tech for pristine, studio-grade synth tones that elevate your guitar or bass.
- • **Infinite Creative Palette:** Mix and match up to 4 independent sound parts with dedicated string assignments and a vast effects library to craft your signature sound.
- • **Roland Cloud Connectivity:** Access fresh patches and updates anytime, keeping your sonic arsenal perpetually ahead of the curve.
- • **Seamless Guitar Integration:** Serial GK interface ensures lightning-fast, ultra-precise tracking with minimal latency—play naturally, no compromises.

## Overview

The BOSS GM-800 is a compact, metal-and-plastic guitar synthesizer pedal featuring the advanced ZEN-Core sound engine and a Serial GK interface for precise MIDI guitar control. It offers over 80 onboard effects, supports multi-part sound layering with string-specific assignments, and integrates with Roland Cloud for continuous content updates. Designed for professional musicians seeking versatile, high-fidelity synth sounds directly from their guitar or bass, the GM-800 delivers a streamlined, powerful solution for creative expression.

## Description

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 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.

Review: Best tracking ever - I've been enjoying the GM800 for some months now and it's a real treat to be able to play freely, without having to be so very careful all the time. I'm able to strum and even spank chords without worry though I'm still mindful of playing a midi controller. Fast runs and arpeggios are far easier now and come out clean with far more forgiveness than I'm used to. The unit is very solid and about as small as I think they could make it. I managed to fit in with my rig (see pic) and it makes for a fairly compact floor setup. The GKC-AD Converter (that I needed) is a tiny bit of gear that I never need to see, so it's tucked away under a little riser that my modeler sits on. The quality of the synth/sound module is outstanding! It's got the same ZEN-Core engine that my Roland Fantom Keyboard has. So many HiDef, super high quality sounds that can be assigned to as many as 4 Parts (each with it's own sound) and each Part has a string assignment menu where I choose which strings (any or all) I want to hear within that Part. For each Part there are lots of EFX (filters, harmonizer, chorus, delay, reverb, overdrives, etc.). I think there 's like 80 to choose from. I've owned many pitch-to-glitch devices (aka- MIDI Guitar Controllers) of the years. Guitar MIDI controllers have made me a better player by forcing me to comp w/palm muting, finger pick and just play cleanly. I use my GK3 equipped guitars and also a Godin Multiac Classical [also 13pin] with the GM800, though I should deduct a star cuz Roland/Boss forced me to spend 220 bucks on a GKC-AD Converter to support my older GK3 divided pickups, something that's likely an easy add for them. I'm sure they want sell the GK5 divided pickup these days, which cool and it does use a common 1/4 inch stereo cable. BTW- the performance between them is the same and the GK3 is on the GM800's config menu... just no 13pin jack on the unit itself, hence the converter that has a 13pin input and provides that stereo cable output to the GM800. IMO the GK3 is really better since it has Program UP/DW buttons and a Volume Control that the GK5 doesn't. I find those GK3 controls essential for playing live. The cons for GK3 is 13pin cables are harder (not impossible) to find and they're slightly stiffer. All in all I find the GM800 to be huge improvement over midi controllers of the past. As always YMMV.
Review: Not usable in a live context. - I purchased this unit based on YouTube videos that portrayed the unit as having perfect tracking and sounds. The sounds are in fact second to none, being that they are Zen Core technology. But the tracking is truly abysmal. I wrestled with all pointers given to mimimize ghost notes (GK-5 signal levels, low velocity cutoff, dynamics etc), but they’re always there in sufficient numbers to eliminate the possibility of actually playing music. Boss did a real disservice here releasing a product that only produces frustration and disappointment. My recommendation - get some some ambient patches going on your guitar, or simply get a keyboard, and slowly learn to play. It doesn’t take much to add little flourishes to guitar-based tracks.

## Features

- Guitar Bass Synthesizer Pedal with Serial GK Interface
- Onboard Sound Library
- Zen-Ce Sound Engine

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0CCJTQGDL |
| Best Sellers Rank | #75,329 in Musical Instruments ( See Top 100 in Musical Instruments ) #171 in Synthesizer & Workstation Keyboards |
| Customer Reviews | 3.8 3.8 out of 5 stars (11) |
| Date First Available | July 21, 2023 |
| Hardware Interface | Serial Interface |
| Item Weight | 4.16 pounds |
| Item model number | GM-800 |
| Material Type | Metal, Plastic |
| Power Source | Corded Electric |
| Product Dimensions | 15.3 x 7.55 x 4.6 inches |
| Signal Format | Analog |

## Product Details

- **Amperage:** 300 Milliamps
- **Audio Output Effects:** Chorus, Delay, Distortion, Modulation, Reverb, Synth
- **Brand:** BOSS
- **Item Weight:** 4.2 Pounds
- **Style:** Compact

## Images

![BOSS GM-800 Compact, Streamlined, and Ultra-Versatile Guitar Synthesizer - Image 1](https://m.media-amazon.com/images/I/71e7inskMjL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Best tracking ever
*by A***D on August 25, 2025*

I've been enjoying the GM800 for some months now and it's a real treat to be able to play freely, without having to be so very careful all the time. I'm able to strum and even spank chords without worry though I'm still mindful of playing a midi controller. Fast runs and arpeggios are far easier now and come out clean with far more forgiveness than I'm used to. The unit is very solid and about as small as I think they could make it. I managed to fit in with my rig (see pic) and it makes for a fairly compact floor setup. The GKC-AD Converter (that I needed) is a tiny bit of gear that I never need to see, so it's tucked away under a little riser that my modeler sits on. The quality of the synth/sound module is outstanding! It's got the same ZEN-Core engine that my Roland Fantom Keyboard has. So many HiDef, super high quality sounds that can be assigned to as many as 4 Parts (each with it's own sound) and each Part has a string assignment menu where I choose which strings (any or all) I want to hear within that Part. For each Part there are lots of EFX (filters, harmonizer, chorus, delay, reverb, overdrives, etc.). I think there 's like 80 to choose from. I've owned many pitch-to-glitch devices (aka- MIDI Guitar Controllers) of the years. Guitar MIDI controllers have made me a better player by forcing me to comp w/palm muting, finger pick and just play cleanly. I use my GK3 equipped guitars and also a Godin Multiac Classical [also 13pin] with the GM800, though I should deduct a star cuz Roland/Boss forced me to spend 220 bucks on a GKC-AD Converter to support my older GK3 divided pickups, something that's likely an easy add for them. I'm sure they want sell the GK5 divided pickup these days, which cool and it does use a common 1/4 inch stereo cable. BTW- the performance between them is the same and the GK3 is on the GM800's config menu... just no 13pin jack on the unit itself, hence the converter that has a 13pin input and provides that stereo cable output to the GM800. IMO the GK3 is really better since it has Program UP/DW buttons and a Volume Control that the GK5 doesn't. I find those GK3 controls essential for playing live. The cons for GK3 is 13pin cables are harder (not impossible) to find and they're slightly stiffer. All in all I find the GM800 to be huge improvement over midi controllers of the past. As always YMMV.

### ⭐⭐ Not usable in a live context.
*by P***R on December 3, 2024*

I purchased this unit based on YouTube videos that portrayed the unit as having perfect tracking and sounds. The sounds are in fact second to none, being that they are Zen Core technology. But the tracking is truly abysmal. I wrestled with all pointers given to mimimize ghost notes (GK-5 signal levels, low velocity cutoff, dynamics etc), but they’re always there in sufficient numbers to eliminate the possibility of actually playing music. Boss did a real disservice here releasing a product that only produces frustration and disappointment. My recommendation - get some some ambient patches going on your guitar, or simply get a keyboard, and slowly learn to play. It doesn’t take much to add little flourishes to guitar-based tracks.

### ⭐⭐⭐⭐⭐ It's from the future. The good future.
*by P***E on January 7, 2025*

I disagree with the other reviews here, and believe Boss needs to do a better job with messaging around this incredible little device. We need more clarity around what it is, how to use it, and what to use it with. Getting the tracking pickup installed correctly is absolutely key. I purchased this synth along with the GK5-KIT-G6 internal pickup kit. I installed the pickup into a project guitar (I'm not handy, and this part was not trivial, taking about a week). I have now had the chance to spend some time with it and this synth. The accuracy is just mind-blowing. The sounds are some of the richest synth sounds I've ever heard out of the box. I'm going to keep exploring, but my initial impression is this device doesn't deserve getting dragged in the Amazon reviews, and it's worthy of five stars from me. One weird thing is it doesn't have an off switch. The manual just says to pull the plug if you want to turn it off. Interesting design decision, but okay!

## Frequently Bought Together

- Boss GM-800 Guitar Synthesizer Pedal
- Boss BGK-15 Serial GK Cable
- BOSS BGK-3 | 3ft/1m High-Performance Digital Cable Guitar Synthesizer Products | Compatible with GM-800, GK-5, GK-5B, GKC-AD & GKC-DA

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*Product available on Desertcart Vanuatu*
*Store origin: VU*
*Last updated: 2026-03-05*