Re: less air? more?
port size need to be calculated carefully, depending on what you require. Most often than not, a larger, shorter port is prone to be louder than that of a small, longer port.
The shorter the port, the higher the tuning of the box.
play around with winISD pro (search for it on the internet) and you'll see what I mean.
Sony C90, 210 EQ
Seas 27TDF/C, RE XXX 6.5, custom xo (dyn 240GT sitting idle)
RF 60.2 amp
Soundstream picasso 1400.1D
Bass drive-by's are uncool.