Here are some of the most Frequently Asked Questions about the ASPRI reverb. If you have a question that is not listed here, please send us a message at [email protected].


The Aspri does not work with split saddles or highly compensated bridges.

Also, the Aspri cannot exceed 9 inches of stretch (grand guitars won’t be compatible).

Is the Aspri Reverb 100% mechanical/unplugged?2018-07-15T10:40:51+00:00

It is entirely, 100% mechanical. This means no batteries, no plugs, no power, no mods or alterations to your guitar. It is as mechanical as a capo: simply clip it on, and enjoy!

Will the Aspri work if plugged into an amp?2018-07-23T21:06:31+00:00

Yes if your guitar is equipped with a ‘piezo’ (or transducer) type of amplification system under the saddle, in which case the reverb will be picked up and your guitar will sound amazing.

Can the Aspri damage my guitar?2018-07-23T21:06:35+00:00

No. The only parts of the Aspri that touch the body of the guitar are covered by rubber pads in order to protect your guitar.

Is the Aspri heavy or bulky?2018-07-15T10:43:53+00:00

Not at all. Both models of the Aspri Clip-On Reverb weigh less than 1 lb (0.418kg). Its overall dimensions are as follows: 23.3 x 8.3 x 8.4cm.

Will the Aspri affect the tuning of my guitar?2018-07-15T10:43:10+00:00

Technically the Aspri will affect the tuning of the guitar since it shortens the length of the strings of approximately 2mm in front of the saddle – but practically speaking, it is inaudible to the human ear unless you play together with other musicians, in which case we recommend that you re-tune your guitar once the Aspri is clipped-on and the problem is solved.

How long does the reverb last?2018-07-15T10:44:31+00:00

The length of the reverb will vary between 4 to 6 seconds depending on the type of strings equipping your guitar, your style of play, the type of guitar used, etc…

Is there a way to have more or less reverb?2018-07-15T10:44:53+00:00

Not for the moment.

How do I know if I installed the Aspri correctly?2018-07-23T21:28:09+00:00

Here are a few quick tips to know if the Aspri is installed correctly on your guitar:

  1. Your unit must be parallel to the soundboard of your guitar,
  2. When pulling the cover of your unit, make sure you could see the pick-up bar (do not overly extend it),
  3. Make sure the pick-ups of your unit are in direct contact with the saddle,
  4. Make sure the suspension springs from your cover are centered with the pick-up bar.

For detailed information, please consult our Instructions page. We have also recently added an interactive 3D model to show you what the installation should look like.

Should I remove the Aspri from the guitar when not in use?2018-07-23T21:17:39+00:00

Whereas the unit will not damage your guitar if it stays installed, it is preferable to remove it when not in use in order to: A) preserve the lifespan of the inside springs, and B) avoid the detachment of the rubber pads on the talon of the unit.

Can I use my Acero unit on my nylon string guitar OR my Clásico unit on my steel string guitar?2018-07-23T21:17:40+00:00

Not a good idea: it won’t provide good sound and it could even break your strings. The inside of each type of unit is built to different specs and is therefore sensitive to different levels of spring tension and vibration.

Is it the same Aspri as the old model?2018-07-23T21:17:43+00:00

No. The new Aspri only shares the same overall aesthetics as its predecessor, but the type of springs, the tension, the talon, and the front bars have been changed in order to improve its sound. Also, each model has been designed in a way to improve its installation.

Is there an Aspri unit for 12-string guitars?2018-07-23T21:17:45+00:00

No there is not at this moment. However, it may work on certain 12-string guitars depending on the spacing between the pairs of strings. Also, we are developing new products and we’d love for you to return to our site to see the new developments. You can also sign up to our newsletter and receive updates on any forthcoming products.

Where do you ship?2018-07-23T21:17:49+00:00

We ship worldwide at the exception of the following countries: the Balkan Region, Belarus, Burma, Ivory Coast, Cuba, Liberia, Democratic Republic of Congo, Iran, Iraq, North Korea, Sudan, Syria and Zimbabwe.

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