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Description
boss bass synthesizer pedal Boss - GM-800Boss GM 800 Guitar and Bass Synthesizer Pedal with Serial GK Interface, Zen Core Sound Engine, and Onboard Sound Library BOSS Guitar Synthesis Evolves with the Power of ZEN Core 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 imaginablefrom acoustic instruments to classic and modern synthswhile high
Boss GM-800 Guitar and Bass Synthesizer Pedal with Serial GK Interface, Zen-Core Sound Engine, and Onboard Sound LibraryBOSS Guitar Synthesis Evolves with the Power of ZEN-Core
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.
ZEN-CORE INSIDE
The GM-800 is built around the expandable ZEN-Core Synthesis System, the sound source behind professional Roland products like the JUPITER-X and FANTOM keyboards, the ZENOLOGY software synthesizer, and many others. ZEN-Core is the most powerful synth engine in Roland’s long history, distilling decades of expertise into one sonically vast and deeply expressive creative instrument.
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.
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 guitar or bass. 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.
MASSIVE EFFECTS POWER
The GM-800 packs the full effects range of the modern ZEN-Core system. With an immense variety of effect types available in each Scene, you can shape, enhance, and mangle sounds to your heart’s delight. 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. 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.
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.
Multifaceted Connectivity
The GM-800 features the newly developed Serial GK digital interface, which supports guitar/bass input from a BOSS GK-5 or GK-5B Divided Pickup and easy linking of multiple GM-800 units. GKC-AD and GKC-DA conversion boxes are also available for classic 13-pin GK devices, allowing you to drive the GM-800 with a Roland GK-3 or GK-3B pickup and use Serial GK devices with the BOSS SY-1000 and GP-10.
Features:
• Next-generation guitar and bass synthesizer with the newly developed Serial GK interface
• 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
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- 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
4.1 ★★★★★
Based on 403 reviews
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Product Reviews
★★★★★ 3
Almost Good
Set name: K2 SE
The nozzle cleaning is completely ineffective. The wiper pushes material up the sides of the nozzle and melts onto the nozzle. The result is the nozzle leaves burnt debris on the prints. The calibration before each print only probes 5 points on the bed and the results are not satisfactory, with the nozzle being variously too close or too far from the bed. To adjust the z offset you have to go through several menus and the machine seems to not remember where you set it last time. Print quality is good except for VFAs. Part cooling fan is very loud at full speed.
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Reviewed in the United States on February 5, 2026
★★★★★ 5
Assembly Tricks And Tips.
Color: Dark Grey, Size: 5 Seat
All my packages came at same time. Assembly is in 3 phases, each box had the same complete instruction book, but each phase was not completely together in the same box. I immediately started opening boxes and just separated by letters. A's here, B's here. Not all A's or the other letters are the same, but it is very easy to follow the instructions. You won't get it mixed up. 3 hardware kits, it's pretty easy. Picture Book Difficulty :) The one large headboard piece was Letter M. There was no sticker on it, but there were no M stickers either. Pretty easy.
It's not a thick grandma's pull-out bed type of couch, but seems sturdy. I probably should have got the 3 year warranty, and I only have one kid. This isn't a couch to front-flip off the island on to, but it is nice and comfy and seems to be worth the cost. Assembly took about 2-3 hours casually I think. I used impact drill. Luckily it's 1 screw head size, then the socket for the nuts basically (provided). Communication with seller was easy and transparent. Idk what else people might be looking for in these reviews. It smelled completely fine. Good purchase. They say to air it out for a while, but I just assembled it immediately it didn't mess up anything.
OH! And a little trick for the double sided threaded bolts with no head, they can get stuck hand tightening it so tighten down one of the nuts all the way to the end of the exposed thread that sticks up, and you can thread those bolts that don't have a head WAY easier using the nut as the head. Then just loosen the nut back off of it. You'll understand what I mean. Thank You
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Reviewed in the United States on April 28, 2026
★★★★★ 5
Would buy again!!!
Color: Dark Grey, Size: 7 Seat
⭐️⭐️⭐️⭐️⭐️ Perfect Couch for Comfort, Space, and Style!
I couldn’t be happier with my purchase of the SUAWY 108 Inch Sectional Sleeper. From the moment it arrived, I knew I made the right choice. Setup was straightforward, and the couch feels incredibly sturdy and well-built. The fabric is soft to the touch yet durable enough to handle everyday use, which is perfect for both lounging and having guests over.
The size is exactly what I was looking for — spacious enough to seat a large group comfortably without feeling cramped. Whether I’m relaxing after work, having friends over, or stretching out for a nap, it provides more than enough room. The chaise and sleeper function are real game changers. The pull-out sleeper is surprisingly supportive and comfortable — not at all like the thin, saggy mattresses I’ve experienced with other sofa beds. My guests have all commented on how well they slept!
I also love the storage space built into the sectional. It’s so convenient for keeping extra blankets, pillows, or even board games tucked away neatly. This design makes it feel like the couch was made with real-life use in mind, not just looks.
Speaking of looks, the style is modern and clean, and it blends perfectly into my living room. The neutral tone makes it easy to decorate around, and it honestly makes the whole room look more put-together.
Overall, this sectional sleeper has completely exceeded my expectations. It’s comfortable, practical, stylish, and worth every penny. If you’re on the fence, don’t hesitate — this is absolutely one of the best furniture investments I’ve made. I’m genuinely so happy every time I sit down on it, and I highly recommend it to anyone looking for a large, versatile sectional.
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Reviewed in the United States on September 8, 2025
★★★★★ 4
An okay sectional
Color: Dark Grey, Size: 5 Seat, Color: Dark Grey, Size: 5 Seat
I want to give my honest review of this couch. One significant difference in the actual couch vs the photos here is the back of the couch is actually much thinner than in the photos. It’s made with metal framing that is very thin covered in fabric with no sort of padding. Also, the back of the couch does not angle back far. Which makes the couch pretty uncomfortable, as your back is up at almost a 90 degree angle.
The quality of the couch overall is good. It was easy to assemble and I didn’t really run into any issues in that regard.
Like others have said. The cushions are quite thin and also not super soft. The couch is also quite low to the ground, so if you’re looking for that oversized super soft couch, this probably isn’t the one.
I do love the pull out bed/chaise which is super nice, ans the storage is great too. For the cost of the couch I think the quality and comfort are good.
I don’t love it, I don’t hate it.
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Reviewed in the United States on March 8, 2026
★★★★★ 4
Versatile and easy to use
Color: Dark Grey, Size: 7 Seat, Color: Dark Grey, Size: 7 Seat
This couch was great for the price! Came in about 5 boxes with instructions in each box and the necessary parts for each piece in the corresponding box. It took my husband an afternoon to put it all together and he said it was very easy.
The back cushions attach by velcro which is great in some ways but in others not so much. Our cat likes to lay on the back of the couch and that has caused the cusion to indent and pull away from the velcro. We've only had the couch a week and that cushion is already not wanting to reform.
The pull out bed is very easy to use even with my back issues.
The storage is fantastic.
Every cushion comes off for easy washing.
Cushions are firm and comfy.
All in all 100% worth the money so far.
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Reviewed in the United States on February 8, 2026