Model #993030
 
The Research and Development Department of Stomvi has conducted a study on the acoustic effect of the valve bottom caps of the trumpet and has incorporated a soundbox inside the cap.

The effect is based on the intrinsic characteristics of the sound box in instruments such as the guitar or the piano, by creating harmonic oscillation through a vibration which improves the performance of the instrument.

Stomvi invites you to test the advantage of this system over traditional caps. You can call the telephone number where you will be extensively informed.

This system is patented by Stomvi and is applicable to some trumpet brands (ask for information).