The Evans EMAD Onyx bass drum heads feature a single ply 10mil film for ideal balance and punch. They have plenty of low-end and power, and feature an Externally Mounted Adjustable Damping (EMAD), allowing the player to adjust attack and focus without removing the head.
Features & Technical Specs:
- Type: Bass Drum Batter
- Color: Black
- Ply: 1-ply, 10-mil
- Size: 18"
- Other Special Features: EMAD System