Looking for some help with a box for my Excursion.

[BMcCaskill]

I recently picked up a bunch (14) of ATC PA75 12's and would like to build a box for my Excursion. I've built several seal boxes before but never took the time to learn to design ported boxes. What would you guys suggest with what I have available? I would like to keep the HxWxD around 20"x48"x15" but the D could go as much as 24". For the time being I have a Pioneer mono amp that runs, I think, 500w @ 2Ω / 800w @ 1Ω. As far as design goes, the wilder the better, as I have an extremely well equipped woodshop and CNC router.

Here are the specs on the drivers.

Sensitivity - 93 dB SPL

Maximum Programme Power - 300 Watts

Usable Frequency Range - Up to 3k5 Hz

Recommended Crossover Frequencies - Up to 1k Hz

FS - 45Hz

QMS - 1.23

QES - 0.26 -

QTS - 0.21 -

VAS - 77 Litres

CMS - 2.1 x10-4m×N-1

MMS - 59 gms

RMS - 14 N×s×m-1

Voice Coil Diameter - 75 mm

Voice Coil Length - 16 mm

Voice Coil Nominal Resistance - 5.4 Ohms

Voice Coil Nominal Impedance - 8 Ohms

Voice Coil Maximum Travel Peak to Peak - 20 mm

Magnet Total Flux - F 2.7 x10-3Wb

Magnet Flux Density - B 1.2 Tesla

Magnet B·l product - B·l 19 N×A-1

Magnet Gap Length - 10 mm

Magnet Gap Volume - 3.67 x10-6m3

SD - 550 cm2

Overall Diameter A 316 mm

Baffle Hole Diameter B 286 mm

Magnet Diameter C 181 mm

Front Mount Rebate Depth D 14 mm

Overall Depth E 140 mm

Thanks in advance.