i just made a box with 2 seperate chambers that were about half the "required air space". they hit the hardest at about 60 - 70 hertz. 12's pump out lows and make the girls giggle, and the highs hurt my head. i really need to sign up for the spl test at the next car show. ill frame it and mount it on the box. heh heh heh. im delerious. or crazy.........like a fox. :rofl:

 

alpine type x willbe running u about 400$ a sub

 

I've seen them from $219 for the 10 and $239 for the 12.

 

I saw them at 459 about 1 1/2 months ago

 

http://cgi.ebay.com/ws/eBayISAPI.dll...757014059&rd=1