sub woofer question

[Sonar]

<font color='#000000'>can somone please tell me why some sub woofeers are designed like the one on this link. http://members.aol.com/ettaylor/subwoofer.htm (http://members.aol.com/ettaylor/subwoofer.htm.)
(you may need to use copy paist in order for this to work)
*On the inside as you can see there are thos two seperated sections. *What exacly do they do?


thanks</font>

[Clint DeBoer]

<font color='#000000'>Double post. Topic closed... see this thread (http://www.audioholics.com/cgi-bin/ikonboard/ikonboard.cgi?act=ST;f=14;t=498;).</font>