This link may help you

Posted by akhilesh [ 129.244.120.64 ] on April 15, 2005 at 14:29:11:

In Reply to: In over my head! Fostex 206 cabinet posted by Peter Swartz on April 14, 2005 at 13:34:13:

http://audioroundtable.com/SingleDriverSpeakers/messages/70.html
Already discussed earlier in this forum.
Hope it helps you!
-akhilesh