size of box

buying (4) infinity perfect 12.1 dvc subs and (2) 320x2 profile amps to power them. i was looking at the reviews on car domain, and a few people were saying that the box for these subs needs to be 'sealed' and small and sh*t, or else the sub will get tooo much air and blow? im not really sure what this means, does it mean i should make my fiberglass box as small as possible, and make each sub have a seperate chamber, and not have any port holes? any help appreciated thanks.
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reviews::

i have one of these in an infinity-spec vented/ported box - tuned to 32hz - they're GREAT when you can feed them a low enough note, but above 50hz or so, your just pushing air, which tends to blow out subs. i have blown out 2 so far with a bridged RF 800.2, and when it costs $40 to send them back to Infinity, this gets expensive... NEW BUYERS SHOULD GO 2 OF THESE IN A SEALED BOX! but yes this is a great sub!

I blew the first ones because I was pushing too much power and my box was too big. After I blew them with my MTX 81000D at 1 ohm (at which its not stable) I send them back to the manufacturer and they were replaced with new ones w/ no problems at all. The second time around, I got two sealed boxes, each half the size (.85 cu ft) of the old one and hooked them up at 4 ohm. With the right hookup and box, these are the most rediculous subs I ever heard.
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i dont understand how a box being too big would blow a sub but... i dont know too much about subs. maybe these ppl r just idiots. or maybe i am (prob me)

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roight

My advice is this. Contact the manufacturer and ask them what the requirements for the enclosure are. The designed it so they'll know better than anyone else what the woofers need. Call them up and talk to their tech support line. Tell them what you're using and what you'll be using to power it and what type of sound you're looking for. Then they should be able to make a recommendation for your exact situation.

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"much air and blow?"

What??? too much air wont cause a sub to blow. What those bone heads are doing is putting prefects in ported boxes and wondering why their power handling is sh*t and why they sound like crap above the tuning freq.

Prefects are SQ subs for the most part. Their designed to go into a sealed enclosure pushed by their RMS power. That guy who wrote that review was pushing 800 watts into his configuration. Now when u take into effect that the power handling of subs is (under most circumstanced) reduced by 25%-50% at freq above the tuning freq. If these guy was pushing 800 watts into 2 prefects in a 32hz tuned box, if he goes about ~45hz those subs are going to start clipping because there getting too much power with too much air behind them.

I'd suggest building a 4 chambered sealed enclosure with each sub getting between .85-1.00cuft. I'd also suggest contancting the manufature like CAH said, they're the ones who will know what their subs can and cant take.

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"Shiny chrome when used in conjunction with bikini models is particularly effective in inducing brain deficit disorder"

02 Jeep Grand Cherokee

Monster System on its way.

dangerranger96 wrote:

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xtreme(he spelled it wrong)

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GRRRRR

lol

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"Shiny chrome when used in conjunction with bikini models is particularly effective in inducing brain deficit disorder"

02 Jeep Grand Cherokee

Monster System on its way.

sweet.. thanks.. i wish i had a digi cam so i can take pix when i start building my box , maybe ill find someone to let me borow one. well anyway thanks for the info, i think im going to build it in 4 chambers, for strength if nothing else.

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roight

xtreamcc wrote:

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"much air and blow?"

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LMAO, I thought that was funny too!!