Detail 01
6 in. diameter
Large enough to pass most kick mics through. Measure your mic body and shockmount before committing to the cut.
Product detailSKU #1274115039780
Bass Drum O'sBass Drum O Port Ring Brass 6 in.
1/4
Independent shopping perspective
The Korena take
6 in. brass port ring for a bass drum resonant head. For drummers cutting a mic hole who want a finished, reinforced edge instead of raw mylar.
Strong match
Who this is for
- Cutting a mic port in a resonant bass drum head
- Studio setups where a mic goes inside the shell
- Finishing a hole already cut roughly by hand
Consider the trade-offs
When to look elsewhere
- Drummers wanting a fully sealed, boomier bass drum sound
- Anyone unwilling to cut a permanent hole in a head
- Smaller port sizes — this is fixed at 6 inches
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
Brass construction
Metal ring holds its shape and won't warp or peel back over time the way thin plastic rings can.
Detail 03
Port ring, not a full head
It finishes an existing hole. You still need a resonant head, and you cut into it yourself.
Detail 04
Adds a vent to the shell
Porting shortens sustain and tightens attack. Less boom, more punch, and easier to mic and control live.
Final check
Know before you order
- 01Head not included — this mounts to a resonant head you already own
- 02Cutting is permanent; mark and measure the circle before you start
- 03Placement off-center near the hoop keeps the mic clear of the beater
Product questions
Before you decide
Straight answers to the questions shoppers most often ask about this product.
01Do I need a special tool to cut the hole?
A hole cutter sized to the ring gives the cleanest result. Trace the ring, cut just inside the line, then seat the ring over the edge.
02Where should I position the port?
Off-center, low and toward the hoop is standard. It keeps the mic away from the beater impact point and gives you room to angle it.
03Will this change how my bass drum sounds?
Yes. Venting the shell shortens sustain and sharpens attack. If you want maximum resonance and low-end bloom, don't port the head.
04Does it fit any bass drum size?
The 6 in. ring fits any bass drum, since it mounts to the head surface rather than the shell. Just leave clearance from the hoop.
