8" Polypropylene Cone (400-1024A) Preparation Faxback Doc. # 15879 Woofer You can install the woofer from the front or back or an enclosure so it is flush with the baffle's surface. Seal the mounting surface so air cannot leak around the woofer. For details, see our "Building Speaker Systems" book (not supplied) available at your local Radio Shack store. (ALL-07/13/95)