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chillin

What size box with these T/S parameters?

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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.

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


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


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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.


Children are the future… today belongs to me!

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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.


Children are the future… today belongs to me!

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BTW, it's a Mach5 SPL15


Children are the future… today belongs to me!

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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. 


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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?


Children are the future… today belongs to me!

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2 cubic foot 

Sorry op couldn't help myself 


2006 ridgeline hu:KW ddx9903s morel 5.25 maximo comps 6.5 maximo coaxial 2 type r 8s 1.1 37 hz amp Rf t1000x5ab

work truck 2017 international pro star Alpine ute62 hu. Amps RF t1000.5ad 4 ch mode infinity k1000  sa 15 3.5 @ 30hz or 2 type s12 6.3 @ 41 hz  or jbl s3 1.5 42hz. or nvx  vcw 10 1.1 @ 32hz  2 8 " eminence pro woofers. 2" Dayton rs52fn midrange. 1 1/8 Dayton dc28f silk dome tweeters.

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Just now, fithwheel said:

2 cubic foot 

Sorry op couldn't help myself 

lol.


Children are the future… today belongs to me!

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Bigger volume usually means more peakiness around tuning in my experience


JVC KD-X350BTS, RE Sx-18d4 9ft3 36.86hz, Synergy 3K@ 2 ohm, RF 500s, Polk DB comps, Cache Preamp/EQ

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50 minutes ago, chillin said:

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.  


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


Children are the future… today belongs to me!

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1 hour ago, THATpurpleKUSH said:

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.


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