Detail 01
Hydraulic oil layer
A thin oil film between plies kills overtones on contact, so the note dies fast without tape or rings.
Product detailSKU #1274034479393
EvansHydraulic Glass Drum Head - 8 IN
1/3
Independent shopping perspective
The Korena take
Single 8 inch tom batter head with oil between two plies. For drummers who want a short, fat thud with minimal ring and no external muffling.
Strong match
Who this is for
- Small rack toms that ring thin and papery when tuned up
- Studio work where engineers want controlled, pre-damped toms
- Hard hitters who go through thinner heads quickly
Consider the trade-offs
When to look elsewhere
- Players chasing open, sustaining jazz tom tone
- Anyone needing a full set — this is one head
- Kits whose smallest tom is 10 inch or larger
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
Glass finish
The clear film gives a sharper, more direct attack than a coated surface.
Detail 03
8 inch diameter
Fits an 8 inch shell only. Small toms are already short on sustain, so this makes them very dry.
Detail 04
Two-ply build
Thicker overall than a single-ply head. Takes harder sticking and holds tuning under heavy playing.
Final check
Know before you order
- 01This is one head, not a pack — order a size for each tom
- 02Batter side only; your resonant head stays as is
- 03Very damped by nature — do not add gels until you hear it tuned
Product questions
Before you decide
Straight answers to the questions shoppers most often ask about this product.
01Does the oil ever leak or dry out?
It is sealed between the two plies. Avoid puncturing the head and it stays intact for the life of the head.
02How does this compare to a regular two-ply head?
Shorter sustain and less overtone. A standard two-ply still rings; the oil layer here damps it further for a thicker, drier note.
03Can I tune this high?
It handles higher tunings, but the damping means it will never sing. Tuned up you get a short, punchy pop rather than a long note.
04Is this a top or bottom head?
Top. It is a batter head meant for the playing side. The bottom resonant head is a separate, thinner head.
