The Bass Drum O's HBL5 is a bass drum port, you install it easily and in addition to improving resonance and low end. It also makes the installation of a microphone easy and it will not soon be necessary to add any more damping material to the bowl on the inside.
- Bass drum port
- 5 in
- Provides a harder, better punch
- Boosts the lower frequencies
- Eliminates the need for damping in the bass drum
- Improved head response
- Easy installation