What size box with these T/S parameters?

[chillin 10+ year member]

Cubic feet, port size and tune? I'm still too much of a newb to understand what to do with these numbers, but I know some smart guys out there will know the answer.  I do have a recommended box from the owner of the company, but when he told me the numbers, I had limited space in my car, so not sure if they would stay the same since I can go bigger now.

[SIZE=11pt]Fs  = 39.91 Hz
Re  = 3.70 ohms[dc]
Qt  = 0.35
Qes = 0.39
Qms = 3.90
Mms = 250.57 grams
Rms = 16.100405 kg/s
Cms = 0.000063 m/N
Vas = 50.79 liters
Sd= 754.77 cm^2
Bl  = 24.398737 Tm
Lp(2.83V/1m) = 94.46 dB[/SIZE]

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[THATpurpleKUSH 5,000+ posts]

What kind of amp, what kind of vehicle, what are your listening goals/what kind of music do you listen to?

 

[chillin 10+ year member]

Supercrew f150, Rock, metal and rap for the most part. Right now i have a 1200 watt amp, may upgrade to 2500 in he future depending if I want more bass and want to spend the extra on electrical upgrades.

 

[chillin 10+ year member]

I don't have the truck yet, just looking for the future.  I don't mind taking up space in the back seat. The sub has been sitting in my basement for 8 or 9 years. bnib, plans changed and I never got a chance to use it, had to get something smaller, but I want to build a box for it that is correct for the sub.

 

[chillin 10+ year member]

BTW, it's a Mach5 SPL15

 

[THATpurpleKUSH 5,000+ posts]

3-5cf tuned in the mid to upper 30s with 16-20sq inches of port area per cf if a slot port is used or an 8 inch aeroport. 

 

[chillin 10+ year member]

That's a fairly broad size difference. If I tune to 37, what kind of difference am I getting with a box that's 3cf compared to 5?

 

[fithwheel]

2 cubic foot 

Sorry op couldn't help myself 

 

[chillin 10+ year member]

2 cubic foot 

Sorry op couldn't help myself 

lol.

 

[shredder2]

Bigger volume usually means more peakiness around tuning in my experience

 

[THATpurpleKUSH 5,000+ posts]

That's a fairly broad size difference. If I tune to 37, what kind of difference am I getting with a box that's 3cf compared to 5?

The larger size will have slightly better low end extension but will be boomier sounding. The wide range is from the vague amp information.  

 

[chillin 10+ year member]

The amp will be a crossfire vr1000D for quite a while.

 

[chillin 10+ year member]

The larger size will have slightly better low end extension but will be boomier sounding. The wide range is from the vague amp information.  

So 4cf would be a nice middle ground for a little boom and still here double kicks on metal songs?

Thanks for all the answers btw, this sight is way quieter than when I used to frequent it.