Ive built a box that will hold 2 10" speakers. However I only got about .9 cubic feet. The speakers are rockford fosgate XLC 10"s which I believe call for .6 apiece. I have heard that if you put polyfill in it, it effectively increases the volume by 10 percent which means I would be at about 1 cubic foot. Will this be enough air space for 2 10"s? Or should I only put 1 in. I have 2 so I would like to put em both in but not if they are going to sound like crap. What happens when they dont have enough air space? Any help greatly appreciated!!!

 

Larry,

The nice thing about a sealed enclosure is you can fudge a little bit on the airspace. I say throw the polyfill in slap both those puppies in there and enjoy! The worst that will happen is they won't go quite as low as they would have in the absolute dead on box. It will also take just a bit more power to really make them sing. I think you'll be alright with both of them though. Let us know how they sound.

Lok

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16X10 Eagle 589's, 315/75-16 A/T's,
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Boston 10" Sub.



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I did the same thing . . . had a box that was too small so the low notes did not play at all, and the high notes were way too loud. I found a better box for my 10's that would fit under the rear seat and give me almost one cubic foot of airspace for driver. The more air, the better the sound!

 

I have your exact same situation and found I had to go to a single 10" and port the box. The port was just because I want all the low end I can get out of my subs.
Let me put a good word in for running singles. I have had subs since the mid 80's in everything I owned, from 280zx's to 4 door sedans to the most recent, the f150 Supercab. I have run single 15's down to double 10" to my latest, the single 10". I have always run an older Fosgate 150 amp or equal (around 225 watts mono). The 10" compares very well since it is located within the cab itself and will definite increase your air pressure. Finetuning crossovers and gains will do a lot for you. Good luck.


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Very Bright RED '97 F150XLT, SC, flareside,4x2,ARE lid, tints, 4x4 front bumper w/fogs, Hyper Headlights, shield, 2" rear drop, Monroe gas-shocks, slash duals, K&N, Pirelli S/T Scorpions, Viper alarm, Clarion, Fosgate, Soundstream and more....

 

The dual 10" down-fire box I bought does great!

andy@frascone.com

 

www.BMGSite.com/boxes

these sound great!!!

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--Lariat4WD--

2000 Ford F-150 Extended Cab Flareside 4x4 Lariat
5.4L;auto;3.55LS;Black/Silver;ORP;remote keyless;floor-shift 4wd;Class III;AM/FM/SingleCD
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Lund X-Terminator bug shield; Vent Shade Vent Visors; Westin Black step bars; Pendaliner bedliner; GSP black Safari Grille Guard; GTS TailBlazerII Slotted taillight covers; Clear corner lenses; under hitch backup lights; 2 KC Hilites Daylighter 6" 150W black round; Cranked torsion bars; Removed lower striping; Replaced factory ORP decals w/ silver; 2 Polk Audio EX10 10" subs under rear seat; Sony XM754HX amp; Viper 300ESP alarm
Pending
Replacing factory gold/maroon Lariat decals & upper stripes with silver & black
Wish list:
More lights; Flowmaster 40 Series single to dual exhaust w/ 18" SS tips out back; Optima red top battery; Remote starter & Prox. sensor; In-dash TV/CD/DVD/AM/FM head unit; Build house w/ huge garage with a drain and a lift.

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shy_texan (Andy) & lariat4wd (Brian)

You both know the vendor rules, so I will ask that you both stop promoting the products you sell or your accounts will be closed.

It is inappropriate and both of you have received email messages to this affect in the last day - you know the rules, stop ignoring them.

[This message has been edited by webmaster (edited 02-15-2001).]