It consists of a bass-reflex wood mixture enclosure and laminated with P.V.C. The components of this 2-way sound box offer a high quality performance. 8" Woofer with cellulose membrane and foam suspension. Two 3" tweeters with cellulose membrane. Connection through Banana terminals. Front part has three removable plastic parts. embedded bolts (M8) in the base for attachment. Pack of two.