Detail 01
4 in. diameter
Enough for a small mic and cable, or for controlled air release. Tight for positioning a large diaphragm mic deep in the shell.
Product detailSKU #1274115039802
Bass Drum O'sBass Drum O Port Ring 4 in. White
1/6
Independent shopping perspective
The Korena take
A 4-inch white plastic ring that finishes a bass drum port hole. For drummers cutting their own port in a front head.
Strong match
Who this is for
- Finishing a hand-cut port hole so the edge cannot tear
- Matching a white or coated front head visually
- Cutting a new port for mic placement inside the drum
Consider the trade-offs
When to look elsewhere
- Drummers whose front head already has a factory-finished port
- Anyone wanting a larger opening for a full mic stand and boom
- Players who want no port and a fully resonant front head
What matters in use
The specifications, translated
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 02
White finish
Blends into white or coated front heads. On a clear or black head it reads as a deliberate accent ring.
Detail 03
Snap-in ring design
Grips both sides of the cut edge, so the head cannot fray or split outward from the hole over time.
Detail 04
Port hole itself
Releases air on each stroke, shortening sustain and tightening low end compared to a sealed front head.
Final check
Know before you order
- 01The head is not included — this fits a head you already own
- 02You must cut the hole yourself; measure and mark before cutting
- 03Cutting a port is permanent — the head cannot be returned to sealed
Product questions
Before you decide
Straight answers to the questions shoppers most often ask about this product.
01Do I need to cut the hole myself?
Yes. The ring finishes and protects an opening you cut in the front head. Mark the circle first, cut slightly undersize, then test the fit.
02Where should the port go?
Off-center, low and toward one side, keeps the head's center intact and leaves room to run a mic cable without it crossing the drum face.
03Will a port change my bass drum sound?
Yes. Venting air shortens sustain and tightens the low end. It also lets you mic inside the shell, which is why most studio and live kits use one.
04Is 4 inches big enough for a microphone?
It fits a standard kick mic and cable through the opening. If you want to mount a mic on a boom arm inside the drum, a larger port gives more room.
Reference
Full specifications
The complete catalog record, organized around the decisions musicians make when comparing gear.
1 detailsBody & build
- Color
- White
