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Boss

Boss SY-1 Synthesizer Guitar Pedal

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$209.99

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Pickup available at 2520 W Main St

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Changed your mind? Return it undamaged within 14 days.

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Ships from Rapid City, SD. Free on orders over $100.

11,000+ five-star reviews on Reverb

Trusted by players nationwide since 1963.

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Journey to New Sonic Frontiers

With the SY-1, it’s never been easier to infuse your creative arsenal with BOSS’s legendary guitar synth technology. This amazingly expressive tool is filled with 121 ultra-responsive sounds, all distilled down into a BOSS compact pedal that slides easily into any setup. Best of all, it’s as simple to use as a standard stompbox, so you don’t need any background in synth programming to bring a new world of sonic textures to your music.


SY-1 SYNTHESIZER Sound Tryout

Get interactive with our custom TonePedia player and explore hundreds of sound variations. Select your instrument, tweak and choose pedal settings.
*Use headphones and Google Chrome web browser for optimal experience.


Expressive Synth Sounds, No Programming Needed

The SY-1 transforms any guitar or bass into a versatile synthesizer that’s fun, inspiring, and ready to play. Backed by advanced tech first developed for the SY-300, this super-cool pedal delivers a huge selection of analog-style synth sounds while occupying minimal space on your board. What’s more, all the sounds are polyphonic, allowing you to play both single notes and chords.


Plug-and-Play and Latency-Free

The SY-1 can be used with any guitar or bass via a standard 1/4-inch cable, providing an easy, plug-and-play experience. Thanks to custom DSP and the latest BOSS innovations, the SY-1 offers latency-free performance that’s a natural extension of your instrument, letting you to play freely and organically without altering your normal technique in any way.


A Universe of Synth Sounds Inside

With its 11 categories and 121 total sounds, the SY-1 puts an enormous array of synth colors at your fingertips. Expressive leads, sweeping pads, layered organs, fat basses, and more are all on tap, plus a variety of rhythmic synth patterns that are a blast to jam with. And with the grab-and-go Tone/Rate and Depth knobs, you’re able to adjust any synth voice just how you like, including changing the pitch on some sounds.


At Home in Any Rig

As a standard BOSS compact, the SY-1 drops into a serial pedal chain like any other stomp. But with the send/return loop and dedicated mix controls, it’s also possible to blend one or more pedals in parallel with the SY-1’s synth voices. For example, you can patch drive pedals in the loop, and then send the combined output to mod, delay, and reverb pedals for overall processing. The send can be used as a direct out as well, enabling you to route synth and guitar sounds to separate destinations.


Enhance Performances with Real-Time Control

The SY-1 offers a numbers of ways to make your synth performances even more dynamic and expressive. Pressing and holding the pedal switch sustains the last-played synth sound, allowing you to jam with regular guitar over the top. You can also connect an external footswitch for tap tempo and octave-shift effects, or plug in an expression pedal for continuous Tone/Rate control.


SY-1 Sound Types

• LEAD 1/2—A wide range of sounds suitable for single-note soloing.
• PAD—Full tones that work great with chords, from layered pads to synth brass and more.
• BASS—Fat synth bass sounds, including filtered and sub-octave tones.
• STR—Classic analog-style strings, including layered voices and sweeping textures.
• ORGAN—A large selection of organ sounds, including many with rotary-style modulation.
• BELL—Percussive synth sounds with metallic resonance.
• SFX 1/2—A variety of synth sound effects, including explosive one-shot sounds, animated pitch/filter voices, and more.
• SEQ 1/2—Pulsating sounds with rhythmic pitch or filter changes.

SY-1

Customer reviews

11,000+ Five-Star Reviews On Reverb

What players say after the guitar arrives

“The guitar was well packed and is set up to my liking! I would definitely do business with this company again!”

Gerald K. – Jun 4th, 2026Reverb
Gibson ES-330

“This is a beautiful guitar…appreciate the free setup and quick ship! Would purchase from this seller again…THANKS!”

Guitar D. – Jun 4th, 2026Reverb
Yamaha RSS02T

“Thank you too for a wonderful experience and an amazing guitar. I appreciate the quick shipment and great customer service.”

Eddie R. – Jun 4th, 2026Reverb
Epiphone 1957 SJ-200

“Very fast shipping, arrived in perfect condition, extremely well set up, no adjustments needed at all! Plays and looks great, exactly as advertised.”

Duncan K. – Jun 3rd, 2026Reverb
PRS SE CE 24

“Fast shipping, and great communication from the seller. Pedal arrived quickly and was packaged really well. Would not hesitate to buy again.”

Mark G. – Jun 3rd, 2026Reverb
JHS The Clover Preamp

Very well packed! Would be happy to do business again! Thanks!

Mark B. – Jun 2nd, 2026Reverb
Stevens Steel Lap Steel Bar

“Another masterpiece from Taylor. Great service and communication from Haggerty’s crew. Thanks!!!”

James S. – Jun 2nd, 2026Reverb
Taylor Custom Shop C14ce

“Beautiful guitar, easy txn! Thank you so much! Looking forward to playing this guitar far into the future.”

Josh H. – May 31st, 2026Reverb
Powers Electric A-Type FF42

“Fast shipping, great pedal. Buy with confidence these guys are great to work with!”

Carter M. – May 30th, 2026Reverb
Ibanez TS-9

“Great shop! Awesome price, super fast shipping, and great packaging of an awesome new pedal! Thanks!”

Craig C. – May 30th, 2026Reverb
JHS 3 Series

Frequently Asked Questions

Do you set up every guitar before it ships?

Yes. Every guitar that leaves our store has been professionally inspected, set up, and signed off by the technician who worked on it. You will find a signed checklist inside the box when your order arrives.

How accurate are your condition descriptions?

We treat condition grading as a contractual promise, not an approximation. When we list something as excellent, that reflects a specific, consistent standard we apply across every instrument. We encourage you to call us before purchasing if you want a detailed in-hand description of any specific guitar.

Can I call and speak to someone about a guitar before I buy?

Yes, and we encourage it. Our team are working musicians, not order-takers. Call us at 605-348-6737 and ask about any instrument in our inventory. We will physically pull it off the wall and describe it to you in detail.

What is your return policy?

We offer a 14-day return policy if you change your mind and the item is returned undamaged. You are responsible for return shipping costs.

Do you offer financing?

Yes. Financing options are available at checkout. Monthly payment options are designed to make high-ticket purchases more accessible without requiring full payment upfront.

How do you ship instruments?

Every instrument ships fully insured from our store in Rapid City, South Dakota. We offer free shipping on all website orders over $100. Guitars are packaged to survive transit, properly cased, braced, and protected.

Are you an authorized dealer?

Yes. We are an authorized dealer for Taylor, Martin, Gibson, Fender, and many other brands. We are currently the number one independent Taylor Guitars dealer in the world, an award we have received two years running for 2024 and 2025. We are also a Top 10 premium dealer for Martin, Gibson, and Fender.

Do you sell on Reverb and Amazon as well as your own site?

Yes. We are one of the top 15 resellers globally on Reverb, where we have accumulated over 11,000 five-star reviews. We are also one of the only independent premium dealers in the world authorized to sell Taylor and Martin on Amazon.

How long have you been in business?

Haggerty's Music has been open since 1963. Our store is located at 515 Mount Rushmore Road, Rapid City, South Dakota.

Do you offer instrument repair?

Yes. Our certified technicians handle everything from routine setups to full restorations across fretted, orchestral, and band instruments. Our team holds certifications from Taylor Guitars, Yamaha, and other leading brands. Learn more HERE.

What brands do you carry?

Our core guitar brands include Taylor, Martin, Gibson, Fender, PRS, Epiphone, Suhr, Eastman, Gretsch, Luxxtone, Novo, Jackson, Charvel, Legator, and Yamaha among others. These are also the most searched brands on our site, so each has a dedicated collection page.

Do you offer music lessons?

Yes. We offer music lessons. You can find out more HERE.