why need 2 sub??

[thuchien]

i try to find more information about this top. Any one give me some explaination or link. I would appreciate. My HT room is small and I never turn it loud so i don't need power but I like to have more deep bass..

for example: 2 pc_ultra give more deep bass than 1 PB–Ultra/2

thanks

[hoosier21]

here is a good read.

http://www.soundandvisionmag.com/idealbb/view.asp?topicID=36397

[thuchien]

thanks a lot.
look like two better than one