ok im in a dilemma, i am trying to figure out which box to use for a d915d2 being powered by a US AMPS ax1000de at 1 ohm.

I have run some figures and made some graphs using WIN isd and have them for you to look at. i am going for the best SQ but spl is an issue to. i do like to thump. if anyone can help me analyse this information and decide which enclosure you believe to be best for me (vented, or sealed).

the went will be a square 3x16x39, and will be following these specifications http://www.diamondaudio.com/products/pdfs/...Vented%2005.pdf

it is already facotred in on the graphs and the other specs are here http://www.diamondaudio.com/products/pdfs/...ch%20Sheet2.pdf

the pics should be up soon.

ok heres the photos:

the sub itself

next is the SPL chart

next is the phase chart

next is the gain chart

and finally the delay chart

if you need any help decifering then dont hesitate to ask.

o and the blue is the sealed, and the lighter color is the vented. and to remind everybody im going for SQ here with SPL but if the vented will still sound nearly as good ill go with the vented most definately. If sealed i will be building a fiberglass enclosure to fit the back left corner of my trunk in a 2001 honda accord. so that may increase SPL as well.

Ported with low tuning should get you the SQ you want and the output as well.

Sealed just doesnt have enough low end for me.

Ported with low tuning should get you the SQ you want and the output as well.

Sealed just doesnt have enough low end for me.

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do you think that this box would be the best for me, it is the manufactures suggesttion.

http://www.diamondaudio.com/products/pdfs/...Vented%2005.pdf

That exact one, probably not.

Do something more custom to your vehicle

That exact one, probably not.

Do something more custom to your vehicle

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thanks, ill look into it.

Personally, I say seal it. Take up less space, the enclosure in the corner will be inobtrusive, and you have more than enough power. Lowend should NOT be a problem with this driver in a properly sized sealed enclosure.

Don't put too much faith in ANY computerized graphs. That graph is worthless anyways once you load the enclosure in the vehicle.

Sealed is for sissies

Yes, that means you

When you say SPL is an issue, what sort of SPL are you used to or looking for. I like sealed, but if your SPL reference is more important use a low tuning and port away.