Detail 01
4 in. opening
Enough room for most kick mics on a short stand. Larger ports bleed more air and shorten sustain.

Independent shopping perspective
A 4-inch port ring that finishes the edge of a hole in a bass drum head. For drummers cutting a mic port.


Strong match
Consider the trade-offs
What matters in use
Catalog numbers tell only part of the story. These are the details most likely to change how this product feels, sounds, or fits into a setup.

Detail 01
Enough room for most kick mics on a short stand. Larger ports bleed more air and shorten sustain.
Detail 02
It frames a hole you cut in your existing resonant head. The head is separate.
Detail 03
Sits on the front head where the audience sees it. Matches red kits and clashes with most others.
Detail 04
Cheap enough to treat as consumable if you re-head the front drum often.
Detail 05
Sized and shaped for a kick resonant head, not for toms or snare vents.
Final check

Product questions
Straight answers to the questions shoppers most often ask about this product.
No. It is the ring only. You fit it to a resonant head you already own or buy separately.
A 4-inch opening, matching the ring. Cut and center it on the resonant head before fitting the ring.
Most standard kick mics pass through a 4-inch port. Very large-bodied mics may need a bigger opening.
A port lets air escape, which cuts sustain and tightens the note compared to a fully sealed front head.
Reference
The complete catalog record, organized around the decisions musicians make when comparing gear.