The Evans Hydraulic Glass Rock Set is a Replacement Drum Head Set, 2-Ply, Includes 10,12 & 16" Skins
The two layers of the Hydraulic Head are separated by a thin film of oil. This produces a strong dampening of the vibrations and shortens the sustain. The play-feeling isn´t affected by this - the action of the Hydraulic Heads is very fast and direct.
All Evans heads feature the Level 360 Collar. This collar ensures a balanced contact around the bearing edge of the shell, making tuning an absolute breeze and enhancing the sound quality by allowing the head to better resonate though out your drum shell.
The main features of the Evans Hydraulic Glass Rock Set include: