From the Manufacturer
Evans 20" clear EMAD single-ply bass head contains two interchangeable damping rings that maximize attack and low-end without removing the head or reaching inside the drum.
Evans EMAD series features a 10mil of single-ply film providing an ideal balance of punch, power and low-end. The unparalleled industry standard Externally Mounted Adjustable Damping (EMAD) system allows the player to adjust attack and focus.
For over 40 years, Evans has been a pioneer of drum head manufacturing and design. Known for innovative designs such as EMAD, EC2S, and the Hydraulic series, Evans drum heads are made in the USA in a state of the art manufacturing facility. Acquired in 1996 by D’Addario and Company, the global leader in musical instrument accessories, the Evans brand is synonymous with quality and consistency.
Product Description
The 10-mil, 1 plyEvans EMAD Clear Bass Drum Headcomes with two dampening rings, each of which affects the head's sound and pedal response. This external system not only maximizes natural attack characteristics and offers tremendous dynamic range (even at low dynamic levels where other damping systems fall short), it also allows quick, easy adjustments, without having to remove the head from the drum. This unique feature is extremely valuable, especially during recording sessions. See www.evansdrumheads.com for more information.