Introduced in 1968, <em>CONTROLLED</em> SOUND�� heads are single ply ambassador��-weight heads with a 5 mil thick black dot in the center of the head. This combination offers a <em>controlled</em>, centered sound without undesirable 'overtones.'These dual-zone heads have
<em>Remo</em> Clear <em>Controlled</em> Sound Bass Drumhead (Black Dot) Dual-zone head that has a combination of both medium- and heavy-duty drumhead characteristics. (9 ratings) New, 22 Inch $35 Overnight: $36 Web Item #REMCS13 PRODUCT DESCRIPTION Offering a unique sound, feel, and presence, <em>Remo</em> CS drumheads are a dual-zone head that has a combination of both medium- and heavy-duty drumhead characteristics. The outer area of the head's playing surface offers midrange tone and sensitivity while the laminated center "dot"