The World's Most Natural Spring Reverb for Nylon-String Guitars
Unmatched simplicity. The ASPRI Clip-On Reverb attaches effortlessly under your strings—no batteries, cables, pickups, or modifications. Upgrade your guitar’s tone with true spring reverb and unleash the artist in you.
Reverb Comparison
The World's First, Simplest & Best Unplugged Reverb Solution
After 55 years of relentless innovation and meticulous testing with world-renowned guitar virtuosos and sound engineers, we have perfected the ASPRI Clip-On Reverb. Built to withstand the test of time, the ASPRI offers unmatched quality and reliability.
The ASPRI provides a transformative, unique, eco-friendly, fully analog spring reverb experience. Pioneered by Roberto Aspri in 1968, it captures sound directly from the string vibrations just before they hit the saddle, ensuring the most authentic and rich sound possible, with natural reverb emanating from your guitar's soundhole.
Click the Play button below to switch seamlessly between raw audio clips and hear the difference without and with ASPRI Clip-On Reverb:
Renowned Artists Rave About ASPRI Reverb
Unleash the Artist in You
Unlock Your Full Potential
Tired of dry, flat tones?
Introducing the new and improved ASPRI Clip-On Reverb, made in Canada with the highest-quality materials and designed to never interfere with your playing.
Whether you're a beginner or a professional, instantly add depth and dimension to your guitar's sound and be inspired.
Start playing with more expression and passion.
Zakk Wylde, guitar legend & founder of Black Label Society
Andy Grammer, multi-platinum singer-songwriter
Chris Henderson, lead guitar player for 3 Doors Down
Mario Guini, 4x Latin Grammy "Multi Platinum Winner"
Your Concert Hall, Anywhere
Struggling to find inspiration without any complicated gear?
The ASPRI Clip-On Reverb's ultralight, award-winning design, with padded features, ensures no marks, residue, scratches, or damage to your guitar.
Experience our 100% unplugged, non-electric clip-on solution, and transform any space into a concert hall with no mods.
Bring the ASPRI anywhere and let it take you everywhere.
There's nothing else like it on the market... Simplicity at its best.
Customer Feedback
Reviewed by:
“When you play, the vibrations from your saddle will trigger the springs inside the Aspri’s reverb tank, giving you completely real, live reverb… I had a ton of fun checking this out.”
You Can Also Plug In!
If you own an electro-acoustic nylon-string guitar or have a pickup, enjoy natural reverb picked up by your amp or sound system, enhancing your stage performance, completely feedback-free!
Check out Mario Guini rocking his ASPRI Clip-On Reverb live at the Latin Billboard Awards!
Instant Reverb in 3 Easy Steps
Step 1: Unbox
Unbox and fully extend your ASPRI.
Step 2: Attach
Slide it under the strings and align it with your guitar’s saddle.
Step 3: Secure
Ensure full contact and proper alignment for optimal sound.
Dimensions & Specs
Frequently Asked Questions
No, unlike other products that require internal modifications, attachments, or power sources like batteries or pickups, the ASPRI Clip-On Reverb works without any of that. Just clip it on (like a capo) and instantly enhance your guitar’s natural sound—simple, fast, and hassle-free.
No, you don’t need one. However, if you have a piezo pickup or an electro-acoustic nylon-string guitar, you can amplify the ASPRI Clip-On Reverb’s beautiful, natural reverb through your amp. It’s been used on stage by top artists during major performances and concerts, delivering a rich, natural sound that enhances any performance.
Yes, the ASPRI Clip-On Reverb is designed to fit all six-string classical and flamenco guitars. It clips on and off in seconds, making it effortless to switch between guitars whenever you need.
For step-by-step instructions to ensure optimal setup and sound, visit our Clip-On Guide and follow the simple process to get the best out of your ASPRI Clip-On Reverb quickly and easily.
No, the ASPRI Clip-On Reverb uses mark-free pads designed to leave no residue or scratches. When clipped on properly, it keeps your guitar’s finish in pristine condition.
The ASPRI Clip-On Reverb slightly shortens the string length by about 2mm, so a quick retune is recommended after clipping on to maintain perfect harmony. It’s a simple step that ensures your guitar sounds its best!
No, the ASPRI Clip-On Reverb isn’t an amplifier. Instead, it adds a beautiful, natural reverb that makes your sound last longer and feel richer, creating a fuller and more immersive playing experience.
The ASPRI Clip-On Reverb adjusts dynamically to your playing style, meaning there's no need for manual controls. After extensive testing and collaboration over many years with renowned guitarists like Alexandre Lagoya and Liona Boyd, we’ve fine-tuned the reverb to deliver a rich, balanced sound that most guitarists love—no adjustments needed!
The new ASPRI Clip-On Reverb model offers two finish options: a sleek matte with elegant wood-grain designs or a glossy jet-black. It also features improved springs for a more secure fit and clips on more easily, enhancing both style and ease for a smoother playing experience.
We’re focusing on the nylon-string version, where the ASPRI Clip-On Reverb enhances sound the most. However, the steel-string model is still available for a limited time! Check our Product page for more information.
Check our FAQ page for more answers, or visit our Contact page to get in touch directly. We're always happy to assist you!
Made in Canada with premium springs, the ASPRI Clip-On Reverb offers top-notch quality and durability. Each unit is meticulously assembled, tested, and backed by a 5-year warranty. Enjoy 100% satisfaction with our 60-day money-back guarantee, no questions asked.
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