SKU: 90779149527
pedal boss synthesizer

pedal boss synthesizer BOSS GM-800 Guitar Synthesizer

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Description

pedal boss synthesizer BOSS GM-800 Guitar SynthesizerGo digital with your ZETA or Cantini violin's divided pickup and MIDI output by connecting to the BOSS GM 800. Driven by the newly developed Serial GK interface, the advanced ZEN Core engine unlocks any sound imaginablefrom acoustic instruments to classic and modern synthswhile 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

Go digital with your ZETA or Cantini violin's divided pickup and MIDI output by connecting to the BOSS GM-800. 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.

*The BOSS GM-800 5-pin MIDI input is compatible with the 8-pin outputs of current MIDI-equipped ZETA and Cantini electric instruments with the help of the BOSS GKC-AD Analog to Digital Converter and BOSS BCK Serial GK/Digital Audio cable (sold separately).

Overview

  • 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

 

Over 1200 Sounds at Your Fingertips

The ZEN-Core engine combines modern PCM synthesis and advanced modeling to bring you an infinite playground for sonic discovery. Play acoustic pianos, EPs, organs, and orchestral instruments. Tap into classic Roland synths like the JUPITER-8, JUNO-106, and many others. And combine them all together to build sounds never heard before.

Four Tones Plus Rhythm

The GM-800 features four Tone parts plus a Rhythm part filled with acoustic and electronic percussion sounds. Call up a part with the dedicated panel buttons, then explore a deep array of synth parameters, pitch settings, alternate tunings, and string assignments to shape sounds to perfection.

Intuitive Scene Workflow

The ZEN-Core workflow is based around Scenes, which are “super patches” containing every element in a sound: Tone selection, parameters tweaks, sensitivity and other play settings, effects, and more. And thanks to the muscular DSP, you can carry over the sound of the current Scene as you select a new one for seamless musical transitions. There are 150 user-configurable Scenes, and 100 come with pro sounds ready to play immediately.

Roland Cloud Expansion

The GM-800 supports an ever-growing range of creative options through Roland Cloud. Stay inspired with ZEN-Core Sound Packs and Wave Expansions. And play the ZENOLOGY synthesizer and legendary Roland instruments in your DAW from your instrument. You can start using Roland Cloud right away with a free Roland Account and access additional content via three paid membership levels. All plans start with a free 30-day Ultimate trial to experience everything Roland Cloud has to offer.

Dedicated MFX for Each Part

Along with their sound-shaping parameters, every Tone and Rhythm part has a dedicated MFX processor. Each offers over 90 effect types, including distortions, filters, mod effects, delays, and more. Many selections include two effect types for additional sound-shaping control.

Scene and System Effects

Within every Scene, you also get two additional FX for processing the combined sound, plus high-quality chorus/delay and reverb effects with independent send levels from each part. And with the Master Comp and EQ, you can shape the GM-800’s sound output for any recording or performance setup.

Limitless Expression

The GM-800 lets you harness an endless variety of sonic textures using the expressive playing characteristics of your instrument. Optimize the performance with continuous pitch control or chromatic operation. Layer Tones to create rich, combined voices. Or assign them to individual strings, such as a bass sound on the low strings and a piano or sax sound on the high strings. You can even assign Tones to specific fingerboard ranges, a powerful new feature made possible with the GM-800’s advanced pitch detection.

Next-Gen Tracking System for Best Ever Playability

The GM-800 delivers accuracy, stability, and real-time playability standards that far exceed previous systems, realized through skilled BOSS engineering and a high-speed processor dedicated solely to tracking. Multiple velocity and feel parameters let you dial in the optimal response for every sound and style. For example, you can set a Scene with piano sounds to respond to every dynamic nuance—from soft to loud—while setting another Scene with vintage analog synth sounds to the fixed velocity response found in the original instruments.

Compact Performance

The streamlined GM-800 flows smoothly from desktop operation to installation on an advanced pedalboard. The four footswitches default to Scene selection and two unique control settings, such as pedal hold, pitch bend, or Tone selection. But you can freely assign them to control a variety of functions via a powerful Assign matrix. Two external control jacks are also available, each supporting up to two footswitches or an expression pedal. And with five-pin MIDI I/O, you can interface with MIDI equipment from vintage to modern.

Edit Sounds with BOSS Tone Studio

Craft Scenes in detail from your computer using the BOSS Tone Studio software for the GM-800. Set up Tones, string assignments, sensitivity, and more from a large, friendly interface. Then use the Librarian function to organize your Scenes for different songs and performances.

Audio/MIDI Interface

With a single USB cable, you can capture GM-800 sounds as audio tracks in a DAW and “re-synth” sounds in a similar way to the re-amp technique used with standard guitar tones. A Guitar to MIDI function is also available, allowing you to play virtual instruments over USB and trigger hardware sound modules via the MIDI output.

MIDI Sound Module

The versatile GM-800 can do double duty as a compact, go-everywhere MIDI sound module. Connect a keyboard or other MIDI controller to the five-pin MIDI input to play sounds live. Or use the ZEN-Core engine as a premium USB sound source within your music production workflow.

 

Specs

Sound Generator ZEN-Core
Parts 5 parts (Play part: 4, Rhythm part: 1)
Tones Preset tone: 1,200 or greater
Preset Drum Kit: 70 or greater
Import tone: 256
Scenes 150
Effects Part Multi-Effects: 1 system (for each part), 93 types
Part EQ: 1 system (for each part)
Reverb: 7 types
Chorus/Delay: 9 types
Scene MFX: 2 systems (Serial or Parallel selectable), 93 types
Master EQ / Comp
Nominal Output Level OUTPUT (L/PHONES, R/MONO): -10 dBu
Maximum Output Level OUTPUT (L/PHONES, R/MONO): +7 dBu
Output Impedance OUTPUT (L/PHONES, R/MONO): 44 ohms
Recommended Load Impedance OUTPUT (L/PHONES, R/MONO): 10 k ohms or greater (Phones: 44 ohms or greater)
Controls SCENE DOWN switch, SCENE UP switch, CTL1--2 switches
PART1--4 buttons, PART R button, EXIT button, WRITE button, MENU button, PAGE buttons
1--4 knobs, SELECT knob, OUTPUT LEVEL knob
Display Graphic LCD 256 x 80 dots
Connectors GK IN jack: 1/4-inch TRS phone type (for BGK cable only)
GK OUT jack: 1/4-inch TRS phone type (for BGK cable only)
OUTPUT (L/PHONES) jacks: 1/4-inch TRS phone type
OUTPUT (R/MONO) jacks: 1/4-inch phone type
CTL3, 4/EXP1 jack, CTL5, 6/EXP2 jack: 1/4-inch TRS phone type
USB COMPUTER port: USB B type (supports High-Speed USB, USB Audio, and USB MIDI)
USB MEMORY port
MIDI connectors (IN, OUT)
DC IN jack
External Memory USB Flash drive (sold separately)
Power Supply AC adaptor
Current Draw 840 mA
Accessories AC adaptor (PSB-1U + AC Cord Set)
Quick Start
Leaflet “USING THE UNIT SAFELY“
Rubber foot x 4

 

Size & Weight

Width 246 mm
9-11/16 inches
Depth 134 mm
5-9/32 inches
Height 63 mm
2-31/64 inches
Height (including rubber foot) 65 mm
2-9/16 inches
Weight (excluding AC adaptor) 1.2 kg
2 lbs 9 oz
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 90779149527

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4.7 ★★★★★
Based on 7 reviews
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Product Reviews
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Verified Purchase
Arthur Gomez
Los Angeles, US
★★★★★ 5
Highly recommend! Best in the market bar none
Number of Items: 1
I would like to say this is the perfect mouse and probably the best mouse you could buy on the market and it doesn't even come close. You can modify the mouse however you like with a click on the app. It's truly been a life changing experience with this mouse. With that being said, the perfect mouse does have a few flaws but nothing that would make me not recommend it to anyone only just be aware of these things. 1. It's a vertical mouse, sometimes it gets in the way and your wrist will knock it over, it will happen I promise you. 2. Logitech has a Flow feature meaning you can connect the mouse to three different computers at once if need be, qyeah I'll say it again, three computers connection! Wow! Well I only use it for two computers, the Flow works flawlessly but my gripe is how it sometimes doesn't sync with my Logitech keyboard Ergo K860, unfortunately, the keyboard doesn't come with the same Flow feature meaning I have to depend on the mouse to do it and it doesn't work sometimes and I have to switch between the mouse transition button to the key board transition button which makes for a long headache sometimes. 3. Believe it or not connection is sometimes an issue, it losses Bluetooth connection often and it doesn't matter which computer I use I have the same issues at work and home so I use the dongle for straight connection. Oh wait there are issues with the dongle connection too? Say it ain't so? It is! The issue comes when you have two dongles like me, the keyboard and the mouse, and try to connect both, like I said I have two computers and Logitech will not allow for their ”universal dongle” to connect to two different computers at the same time terrible design flaw. 4. Again, this mouse is incredible but it can sometimes be a little too much incredible, I know, I know but hear me out. The mouse is flawless fast, one quick wrist jerk and that mouse pointer on the screen is jumping all over the place, it's been hard to find a happy medium with the pointer, it's either you adjust to slow it down, making it too slow, or adjust to make it fast, which is too fast, again no happy medium even though there are plenty of settings to toggle with. I believe most vertical mouse tend to be that way anyway only with this mouse you can really tell the difference and that could be a good thing or bad thing depending on your perspective, it's sometimes a bad thing for me on Excel sheets. So the final verdict is this is still the best mouse out there and worth every penny and I would still give this 10 stars if possible, it's been a wonderful experience with this mouse. Again, the negatives are not bad or to make someone not buy it and considering the other features this mouse can do I recommend anyone who works all day on a computer to buy this product I highly recommend it.
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Reviewed in the United States on July 28, 2021
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Verified Purchase
Humam
Waukegan, US
★★★★★ 5
Excellent Ergonomic Mouse for Long Workdays
Number of Items: 1
If you spend many hours at a computer and are looking for a comfortable, high-quality mouse, I highly recommend the Logitech MX Vertical. It has made a noticeable difference in my daily comfort and productivity.
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Reviewed in the United States on June 5, 2026
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Verified Purchase
Ander Anthony
Birmingham, US
★★★★★ 5
9.8/10, would buy again!
Number of Items: 1
I bought this mouse in Sept 2020 and it's been absolutely fantastic. Only now, 5 YEARS later, and under extremely heavy usage in both work and gaming pretty much every day, has it started to wear out and develop an issue with the left click button. Most mice don't last anywhere near that long under the same conditions but this thing was a freaking soldier! Pros: Vertical angle - this is the main reason to buy this mouse and I did notice after extended use sessions, significantly less strain on my wrist at the end of the day/night. FYI I also have a wrist wrest on my mouse pad to fully maximize this benefit. The 57 degree angle felt really good to me and didn't inhibit my usage or performance in any way. Build Quality - Solidly built to handle the needs of the most demanding power users. Battery - The battery life lasts a super long time and it warns you when its getting low, plus you can still use it while its plugged it and charging. Charging time is fast and I haven't noticed any significant drop in battery lifetime over many charge/discharge cycles. Sensor - The DPI is high enough for gaming and also variable enough that you can lower it with a single button push to allow a 'normie' to use it when needed. Doesn't require a larger initial movement to begin tracking, making very fine and intermittent adjustments possible. Scroll Wheel - Each single 'tick' of the scroll wheel is soft enough that if you need to scroll a lot you can make it go several at a time easily for faster scrolling. Also its completely silent when scrolling slowly. Coating/Materials - The rubber grip is nice and not difficult to clean with a good spray and a microfiber cloth. The glide coating on the bottom held up very well and it still slides across the pad smooth as butter. The buttons have a matte texture to them that feels premium, which held up fairly well to being worn down. Weight - Well balanced, not too heavy, not too light. It's not adjustable like some high end gaming mice but tbh it doesn't really need adjusting anyway. Bells and Whistles - The multi device sync also works flawlessly and connects to the other devices very quickly when you switch with the button on the bottom. I never got to playing around with 'Flow'. Software - Come free of any bloatware extras and doesn't appear to consume any more system resources than it needs to while running in the background. Cons: The price maybe? You could easily spend more than this on a mouse and end up with an inferior product. ~$90 every five years isn't terribly unreasonable for something that works this well for >8 hours a day every day. If you don't clean it regularly the coating can get a bit oily after a while, and you pretty much have to use a microfiber cloth as nothing else leaves it clean. Sometimes on a hot day it can leave your hand getting a bit sweaty, not because the mouse produces any heat (it doesn't) but because the grippy coating will absorb warmth from your hand and hold on to it for a bit. Maybe the texture on the main buttons could be a little more wear resistant. Eventually I wore off a small fingerpad sized spot on the left click button and that super smooth bit of plastic ends up feeling kind of oily even though its clean. Final thoughts: 9.8/10, would buy again. The only thing I really wish this had was the ability to adjust the vertical angle. After some very long use sessions being able to switch to a slightly shallower angle would help to reduce the eventual strain even further. And if we're shooting for the moon here, I'd love it if you could swap out the outer body to a ventilated/open style body like GravaStar's mice to keep your hand from ever getting sweaty.
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Reviewed in the United States on August 4, 2025
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Verified Purchase
Kimberly
Bozeman, US
★★★★★ 5
Easy peasy.
Pattern Name: New Version, Color: Black
The mouse works fine! The only reason I am giving it away to someone is because I really enjoy having side buttons that let me go back and forth between web pages/etc. Love the click sounds of the mouse too! :) Scrolling is fine, connection is fine, my hand is small and it feels comfortable. Small to take around and just great simple mouse.
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Reviewed in the United States on March 23, 2026
M
Verified Purchase
MARISOL DIAZ
Belleville, US
★★★★★ 5
Great Wireless Mouse for Everyday Use
Pattern Name: New Version, Color: Black
Review: I’m really happy with this HP X3000 G3 wireless mouse. It’s lightweight, comfortable to use, and works smoothly right out of the box. The connection is stable, and I didn’t experience any lag while using it for work or browsing. The design is simple and sleek, making it perfect for both office and home use. I also like that it’s very responsive and the battery lasts a long time. Overall, this is a reliable and affordable mouse that gets the job done. Definitely a great value for the price! 👍
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 25, 2026

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