Bessel Vented Drums

RƎPERCUSSION’s innovative porting/venting design focuses on providing drummers with an enhanced drumming experience, with extremely articulate sound and superior presence.

first prototypes of radial vented snare drums

The maths behind drum venting :

RƎPERCUSSION’s Bessel Vented Drums are named after Friedrich Wilhelm Bessel, a german mathematician who gave his name to specific functions used to describe the wave equation solution for horns, membranes, vibrating plates, etc…

In RƎPERCUSSION’s snare drum, a very specific vent profile is created to maximise conversion to sound waves, following Bessel’s equations.


Radial Venting :

Drums being axisymmetrical objects, why then disrupt this with a single location for one or several “vents”? In order to achieve a homogeneous sound field around the drum, RƎPERCUSSION has chosen a rather radial opening.

Sound :

These drums have a somewhat dryer, warmer and extremely focused sound with immediate feeling of projection and presence, for the audience and for the drummer. Back-to-back benchmark test with high end instruments have demonstrated this effect among extremely demanding performers looking for a very specific sound.

Build :

RƎPERCUSSION drums are made of high quality shells, and worked to specific designs to achieve homogeneous sound radiation patterns.

Please contact us for further details.

“…And you can have it in any colour you want as long as it’s your sound…”