i have downloaded a few manuals of different woofers from the site.
when i plot them on bass box pro, i have seen that most of these woofers are tuned to above 40+ hz....
kenwood 3012 (43hz)
pioneer 3001 (53hz)
pioneer 308 (40hz)
when i plot the recommended enclosure size for pioneer 3001d4 ( 1.2cubic ft ) along with the factory recommended port (3 x 3") , i get a wooping tuning of 53.5hz!
where kenwood shows internal volume 1.25 and size of the box , upon plotting it on bass box pro , it shows external volume 1.25 :S
then i tried the input the size of kickerl7 15" factory specs....
where the manual says fs:30HZ , with the same size, bass pro shows 39hz..
what is happening here? is bass box pro really reliable in building boxes?
afew hz tuning might be acceptable but on the kicker specs, there is a difference of 9hz!!!