SKU: 41791072095

Boss GM-800 Guitar Synthesizer Effect Pedal

Sale price$549.45 Regular price$610.50
Save 10%

Pay in installments of $152.62 with ShopPay, AfterPay and Klarna

Shipping Estimate
USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Aug 8 - Aug 13

Promo Codes Available:

For Your Every Summer RSVP, with Code: SUMMER15

Description

Boss GM-800 Guitar Synthesizer Effect PedalWith a legacy spanning almost half a century, Boss and Roland have consistently led the forefront of guitar synthesizer innovation. The Boss GM 800 Guitar Synthesizer stands as a testament to this, providing guitarists and bassists with access to an unprecedented array of creative tools. Harnessing the formidable ZEN Core sound engine and the newly designed Serial GK interface, the GM 800 represents a significant step forward in guitar synthesis. The

With a legacy spanning almost half a century, Boss and Roland have consistently led the forefront of guitar synthesizer innovation. The Boss GM-800 Guitar Synthesizer stands as a testament to this, providing guitarists and bassists with access to an unprecedented array of creative tools. Harnessing the formidable ZEN-Core sound engine and the newly designed Serial GK interface, the GM-800 represents a significant step forward in guitar synthesis.

The heart of the GM-800 lies in its ZEN-Core Synthesis System. Adopted from Roland's flagship synthesizers, the ZEN-Core engine is capable of producing over 1200 different tones. Spanning from classic acoustic sounds to the iconic Roland synths like the JUPITER-8 and JUNO-106, this library of tones presents an expansive playground for your musical imagination. Moreover, this sound palette is extendable through Roland Cloud, giving you access to a continuous stream of creative content.

Each scene on the GM-800 is a "super patch" that allows you to combine, layer, and edit four unique Tones, plus Rhythm. With the high-performance DSP, you can seamlessly transition from one scene to another, ensuring smooth performance. Moreover, with 150 user-configurable scenes, including 100 that come preloaded with professional ready-to-play sounds, you can customize your sonic environment to match your creative vision.

On the effects front, the GM-800 is packed with over 90 effect types, with each scene capable of supporting multiple effect applications. From distortions and modulations to delays and more, the effects on offer ensure that your sounds are uniquely yours.

As a performance tool, the GM-800 lets you go beyond the traditional guitar and bass sounds. With continuous pitch control, chromatic operation, and advanced pitch detection, the GM-800 can transform your guitar or bass into a multifaceted sonic device. It can also function as a standalone synthesizer sound module for MIDI keyboard use or DAW sound expansion.

The GM-800 also houses two external control jacks for up to two footswitches or an expression pedal, giving you greater control over your performance. It integrates seamlessly with your desktop or pedalboard setup and also features MIDI I/O for interfacing with a wide range of MIDI equipment.

With USB audio/MIDI connectivity and guitar to MIDI function, the GM-800 extends its functionality even further. It can serve as a compact, portable MIDI sound module, a premium sound source in your DAW, or can be used to play external MIDI instruments via USB or a MIDI cable.

Rounding up, the GM-800 comes with BOSS Tone Studio software that lets you craft and organize your sounds from your computer. With all these features and more, the Boss GM-800 Guitar Synthesizer is more than a pedal—it's a world of unlimited musical possibilities.

  • Employs Roland's Powerful ZEN-Core Synthesis System
  • Includes Over 1200 Distinctive and Versatile Tones
  • Features Four-Tone Layering with High-Performance DSP
  • Over 90 Customizable Effect Types Per Scene
  • Continuous Pitch Control for Unique Sonic Expression
  • Compatible with MIDI Keyboards and DAW Expansion
  • USB Audio/MIDI and Guitar to MIDI Function
  • Included BOSS Tone Studio Software for Sound Crafting
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: 41791072095

Discover Niche Categories That Outsell

Top-Converting Item to Boost Your Average Order

4.3 ★★★★★
Based on 11 reviews
Sort
Highest Rating
Newest First
Oldest First
Product Reviews
J
Verified Purchase
Jose Correa
Pawtucket, US
★★★★★ 5
Stunning Automatic Watch With TopTier Durability and Precision
Color: Grey
“I got this Tissot PRX for my cousin’s birthday and bro fell in LOVE instantly. This thing keeps time like a beast, never slows down, never lags. Automatic movement, so no batteries, no drama. Durability? Stupid good. You can hit it, bump it, live life rough, it still looks box fresh. Size wise it was almost perfect. I just had to remove two links, nothing big. It’s light, functional, comfortable, doesn’t weigh you down, doesn’t get in the way but more importantly I can say this watch is in everyone’s eyesight when we wear it. Cause of course I had to get another one! Basically. I gave him a very nice piece as a gift, and now he’s walking around like he owns Switzerland.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 11, 2025
C
Verified Purchase
Cienfuegos
Louisville, US
★★★★★ 5
Great watch!!!!
Color: Grey
Excellent quality, one of the best, elegant.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 6, 2026
T
Verified Purchase
T. H.
Charlottesville, US
★★★★★ 5
Excellent value for an automatic watch, keeps VERY good time.
Color: Grey, Color: Grey
I've only had the watch for a day but wanted to leave a quick review on it to share a couple of notes. So far it keeps VERY good time, better than any of the automatics I own (including a Rolex Submariner, Tag Heuer Aquaracer, Tag Heuer Formula One, and several other sub $1k watches). I set it to an atomic time app on my phone yesterday and 24 hours later it's still SPOT on - hasn't gained/lost even a 1/10 of a second. I was shocked to see it's kept PERFECT time for the last day, I'm really blown away so far. I've worn it the entire time, we'll see how well it keeps time while being stored in a winder. This picture shown is the watch with a 22mm leather band on it, fit's without any issues (just need to squeeze in the leather a tad). I doubt it would work with a 22mm metal bracelet, but leather works great. Just FYI since the 21mm lug width is kind of odd. The face isn't quite a lustrious as the images make it look, but it's still a great-looking watch. For a sub $1000 automatic you can't go wrong, this is a fantastic watch at a great price. It'll be my daily driver for some time I'm sure. If I have any issues in the future I'll update the review.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 22, 2021
B
Verified Purchase
Beniamin Grigoryan
Houston, US
★★★★★ 5
It looks really cool and striking.
Color: Grey, Color: Grey
Really cool and beautiful watch. Although my specific unit runs 5 seconds fast every day—at first it’s annoying, but eventually you stop caring. 🤣
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 16, 2026
P
Verified Purchase
Paul Andreini
Dallas, US
★★★★★ 5
A Beautiful Timepiece at an Awesome Price!!
Color: Grey, Color: Grey
I have lusted after this watch for four months. I first tried on a similar model (stainless steel band with a green face) in a local jewelry shop (Spitz Jewlers, Walnut Creek, CA, USA). It was "love at first sight," even if I didn't love the white lines on the face from 12-6 and 3-9. At the time, the MSRP was $775. The MSRP has since increased to $795. But I bought this beauty on Amazon.com for only $524.99; after applying the cash-back from my Prime credit card, this watch costs only $498.75. This was "the offer that I could not refuse," to quote from "The Godfather." Accuracy could be better: after only a few days, it is now 7 seconds behind my phone (to which I set my new watch). But I don't really care about that all that much. This is why I rated "accuracy" at 4 stars, but my overall review is 5 stars. My video shows the date changing suddenly at 11:59:59pm, just how I want it; in another photo, you can see that my Seiko changes the date more slowly, which I do not like. This watch is absolutely phenomenally beautiful. If you're on the fence over whether to make this purchase, then I would say "go for it!" You will not find a prettier, more accurate watch at a lower price in ANY store in the entire USA.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 28, 2023

recommand products