Exclusive to the Evans line are Hydraulic drumheads: heavy- duty, twin-ply heads with a layer of oil between the plies to greatly reduce resonance and emphasize the drum's lower overtones. Hydraulic heads are an excellent alternative to inconsistent methods of drumhead muffling.
Comments about Evans 22" Black Hydraulic Bass Drum Head:
"I must say from experience that I go through a ton of Bass heads. It took a long time to find heads that could take a beating AND look good at the same time. I'm a very heavy-handed drummer and I pound on the bass drum, but at the same time I wanted heads that look as good as they sound. I found nirvana in Evans Hydraulic Drumheads. I like a ""dead"" sound from my toms and bass, but I also want resonance when a song needs that special touch. Evans heads are strong, durable, and beautiful. I have found myself to be biased towards the Black Hydraulic Heads. If you want to make a statement with your image as well as your sound, Evans Black Hydraulic Heads are the ticket."
