I just bought a 12" DD sub and was wondering how it would sound in a sealed enclosure, as well as what size would be optimal. It will be in the trunk, close to the back seat in an 86 Buick Regal, so lots of width to work with, not as much depth.
Any help would be appreciated!!
Oh, it will be run by a Zapco AG750, and the subs specs are:

Series
2500a
Voice Coil Diameter
2.5"
Magnet Weight
120 oz.
Power Handling RMS/Peak
750/3000
Suspension
80 mm
Nominal Impedance
D4.0 Ohm
DC Resistance
D3.6 Ohm
Model
2512a
Rec Box (cubic ft)
2.5
Port Area (sq in)
42
Port Length (inches)
16
Woofer Diameter
12"
Free Air Resonance
26 Hz
Qts
0.36
Qes
0.397
Qms
4.16
Vas
77 L
Sensitivity
88 dB
Shipping Weight
24 lbs

 

it will work ok but not as good as in the below spec box
Box 2.5 cubic ft
Port Area 42 sq in
Port Length 16 inches

Or

Box 1.75 cubic ft
Port Area 30 sq in
Port Length 16 inches

 

Thanks!
What diameter of port would that use?

 

that looks like slot port to me

 

yes it is.To find how the port fits times HxW of where it will go to find the port area and adjust it so to the specs

So if the box was 13.5"H that gives you a 12" tall port and that would need 3.5"W port to =42sq in