The KickPort's patented design improves the sound of your bass drum by doing four things:
It ports the bass drum in the same way as a bass-reflex speaker, which enhances low frequencies.
It adds ideal damping directly to the resonant head, allowing you to remove most if not all internal materials, thereby recovering the full natural resonance and tone of your drum.
It focuses the air as it exits the bass drum, and this compression increases punch.
It's tunable! Thanks to its wide-band design, the KickPort improves the sound of bass drums ranging from 16 to 28 inches. It can be tuned up or down by adjusting the tension of the resonant head.