Hear the Difference

Without ASPRI: Your guitar as-is: strings and body only.

With ASPRI: The reverb tank sends sound back through the guitar, wrapping you in a concert-hall feel.

Hear it now: dry vs ASPRI

Press Play to hear your guitar dry. Then tap WITH ASPRI to compare. You can switch anytime. Best with headphones.

Hear it now: dry vs ASPRI

Press Play to hear your guitar dry. Then tap WITH ASPRI to compare. You can switch anytime. Best with headphones.

Hear the difference

Bossa Nova Demo

Strum and Tap Demo

Strumming Demo

Upgrade your guitar now 🛒 Get ASPRI today

Without ASPRI: Your guitar as-is: strings and body only.

With ASPRI: The reverb tank sends sound back through the guitar, wrapping you in a concert-hall feel.

50+ years of inspiring guitarists worldwide

“I just bought an ASPRI UNIT – used it on my Blueridge acoustic guitar and… I could hear “heaven”… Thanks a lot for changing my musical life!”

Corneille Driezen

“The ASPRI is a great accessory! I was very pleased with how dramatically it improved the tonal response and volume of my Yamaha FG-400A. Made a dull guitar sound super! Highly recommended.”

Bil Andersen

“I am VERY impressed with the new version. It sounds great; the effect is very smooth… Bottom line: this is not a toy, and does exactly what it is supposed to do.”

'Flamenco Chuck' Keyser

“I absolutely love it! The reverb sound is better than ever… It sounds absolutely magical!”

John Hasbrouck

“After the installation of the Unit on my guitar, I could not believe my ears it simply blows me away.”

Maximilian Weitenhillinger

“It is very easy to install and sounds wonderful! Thank you so much for making such a quality product. I’ll recommend this to all my friends.”

Nattachart Manasirisuk

“I have applied it to a sort of classical hybrid by Ibanez. It sounds quite amazing, and actually brightens up the guitar’s tone without sacrificing the warmth of the classical aspects of this guitar. I do appreciate very much the engineering that must have gone into getting this right, where right is basically perfection.”

Vic Von Gemmingen

“I purchased my first Aspri Reverb in 1988 after seeing it advertised in Guitar Player Magazine. That was back when they had the little Soundpage flexible records inside. Al Di Meola was demonstrating it and I was blown away! I still have that unit and also the new one which I have on my guitar all the time. Thank you Aspri for this wonderful product!”

David 'Sawlon' Lawson

“I just got my Aspri Reverb and I want to tell you that I absolutely LOVE IT! Thanks so much for this awesome product. Your product is unbelievable!”

Dan Skapinsky