sounds like your stuck with a sealed. Oh pooh.
If your looking for output you want ported, quality, sealed. Given this is one of those evil audio a properly designed... will smoke a...
I've no idea where your knowledge for this is at so:
Say the driver puts out 100 db at 50hz with some magical power number...
sealed (roll off of 10-12db/octave) = 88-90 db @ 25 hz
ported (roll off of 20-24db/octave) = 76-80db @ 25hz (nevermind complete loss of cone control below the tuning freak, which for sake of argument is 40-50 in most cars, higher in SPL vehicles).
Sealed is notably inefficient compared to ported(at tuning freak a ported
is good for 3 more db than a sealed.) theoretically of course.
I need a drink. :roll: