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BOSS’s Legendary
Super Overdrive Sound
Since its release in 1981, the workhorse SD-1 Super Overdrive has been the core gain pedal for generations of players across every musical genre. Based around the revolutionary asymmetrical clipping circuit from the OD-1 Overdrive—one of the three original BOSS compact pedals from 1977—the SD-1 delivers rich, smooth, and highly musical overdrive tones that continue to inspire guitarists everywhere.
The Clipping Circuit That Defined “Overdrive”
In 1977, BOSS created an entirely new stompbox category with the OD-1, bringing natural overdrive in pedal form to guitarists for the very first time. Producing a signal rich in even-order harmonics, its unique asymmetric clipping circuit replicated the pleasing sound and feel of a driven tube amp—but at controllable volume levels. Four years later, this breakthrough design evolved into the more versatile SD-1, which added an active tone control for shaping the treble response and subtle enhancements for more low-end body.
Overdrive Perfection
The SD-1 allows players from beginner to pro to get inspiring sounds right away, thanks to its natural behavior and the subtle mid boost that's part of its design. It gives your tone a push where it matters most, ensuring your guitar always sits perfectly in the mix with warmth, clarity, and rich presence. Lower drive settings are great for rhythm parts, while higher settings are ideal for fat, singing leads. The SD-1 is also very sensitive to input gain, letting you dial in different shades of overdrive simply by adjusting your guitar's volume control.
The One Pedal Every Player Needs
With its organic character and responsive drive and tone controls, the SD-1 delivers the right sound for just about any style of music. Kick on the pedal with your favorite clean or slightly driven amp for mild-to-moderate overdrive that’s ideal for everything from classic rock and gritty blues to pop, country, jazz, and beyond. The SD-1 also shines as a booster for high-gain amps and other drive pedals, providing mid focus, tight bass, and smooth top end that's perfectly suited for heavier sounds and solo playing.
Standard Features
- Genre-defining BOSS overdrive sound
- Unique asymmetrical clipping circuit produces tube-like overdrive characteristics
- Mild-to-moderate drive tones with focused midrange and tight low end
- Ideal for use with clean and slightly driven amps
- Also works great for bringing tightness and definition to high-gain amp tones
- Stacks well with boost, overdrive, and distortion pedals
- BOSS five-year warranty
Trade offers welcome! Please contact us to begin the process.

At Lark Guitars, we understand that musicians are always looking for new gear to enhance their sound. That's why we offer a trade-in program where you can exchange your gear for something new. Whether you're looking to upgrade your guitar, amplifier, or effects pedals, we're here to help.
Our trade-in process is simple and convenient. We accept trade offers and can evaluate your product remotely. All you need to do is contact us and provide details about the item you want to trade. Our team of experts will assess its condition and value, and then send you an offer.
Please note that while we accept some trades, we cannot accept all offers. Our trade-in program is subject to certain criteria, including the condition and market demand for the item. However, we strive to provide fair and competitive trade-in values to our customers.
Getting started is easy. Reach out to us today and let us know what you're interested in trading. Our knowledgeable staff will guide you through the process and answer any questions you may have. Please provide the following information.
Model, Year, Serial Number, Condition, & Detailed Photos.
Contact us today and take advantage of our trade-in program!
Lark Guitars Difference: Lark Guitars takes great pride in making sure your shipment will arrive timely, correctly and as hassle free as possible. With the massive shift to more remote ordering of guitars and instruments, this process can be exasperating at times. It is our goal to minimize any of these feelings, making your transaction from purchase to playing as joyfully possible. For more info regarding our shipping methods, please visit here.
International Shipping:
We ship all over the world, please contact us with any questions you may have or to receive a detailed shipping quote! More info here.