Detail 01
GMAD damping system
A foam ring drops into an outer channel on the head, so muffling changes without loosening lugs or pulling the head.
Product detailSKU #1274034479626
EvansGMAD Clear Batter Bass Drum Head 20 in.
1/4
Independent shopping perspective
The Korena take
A 20-inch clear bass drum batter head with an external adjustable damping ring. For compact kicks that need a deep, controlled note.
Strong match
Who this is for
- 20-inch bop, jazz and compact gig kits
- Drummers who want low end from a small kick drum
- Players who adjust muffling between rooms or sessions
Consider the trade-offs
When to look elsewhere
- Anyone with a 22 or 24-inch kick — sizing is exact
- Drummers who want a fully dry, cardboard-thud kick
- Players wanting a coated, brush-friendly surface
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
Clear film
More attack and definition than an opaque head, which helps a smaller kick stay audible in a mix.
Detail 03
20 inch size
A smaller kick speaks faster with a higher fundamental. This head is voiced to push the low end back down.
Detail 04
Batter head
Beater side only. The front resonant head is bought separately and does most of the sustain shaping.
Detail 05
Adjustable external damping
Run it ringless for an open, jazzier note or with the ring for a tighter studio thud.
Final check
Know before you order
- 01Front resonant head is not included — this is the beater side
- 02Confirm your shell is 20 inches, measured across the shell not the hoop
- 03Center your beater strike so it clears the outer damping channel
Product questions
Before you decide
Straight answers to the questions shoppers most often ask about this product.
01How is this different from the EMAD version?
Both use the same external ring approach. This one is voiced toward a deeper, rounder low end rather than maximum attack.
02Is a 20 inch kick too small for rock?
No. A 20 with a damped batter head gets plenty of low end and is far easier to carry and mic than a 24.
03Can I remove the damping ring?
Yes. Pull it out for a more open, longer note. Put it back for a shorter, tighter thud. No retuning required.
04Do I need a ported front head?
Not required, but a port makes mic placement easier and shortens sustain. That head is a separate purchase either way.
