Evans EMAD Onyx Bass Drum Head

The Evans BD18EMADONX EMAD Onyx bass drum head has a diameter of 18 inches (45.7 cm) and features a single-ply 10-mil construction with an integrated EMAD damping system. This externally mounted, adjustable damping system allows for precise control of the attack characteristics and bass focus through simple adjustments. The black Onyx surface provides visual consistency with matching drum heads as well as contributing to the acoustic properties. Designed for drummers who require substantial projection and durability, this bass drum head delivers an enhanced low-frequency range while maintaining the responsive feel characteristic of single-ply constructions. The 10-mil film thickness balances durability with clear sound reproduction, making it suitable for various playing styles where consistent performance and reliable construction are prioritized. The externally mounted EMAD system allows for quick sound modifications without removing the head, enabling efficient setup adjustments during rehearsals or performances. This bass drum head is compatible with standard 18-inch bass drum shells and represents the technical specifications typical of professional percussion equipment.