something louder?

You are not going to get much SQ out of a 15" sub (especially not a Kicker L5). If you want SQ but still like it loud try listening to a pair of Eclipse alluminum 12s and see if you like them.

Eclipse eh.....hmmmmm. Never heard of it.....Top Secret, I can tell you but then my wife will kill me.

Ok i think im gona go with the 2 10" aluminum cones...

would a Eclipse 34230 be enough to do them justice?

its rated at 370x2 @ 4 ohms

I wanted to keep the same brand of amp/subs.. but if that amps not big enough i'll prolly get an orion 1200D amp with the 4ohm DVC subs... it'l give me 1200x1 @ 1 ohm

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Do not go with that amp, it is not a flexible amplifier for this scenario. You would also be way better off with a pair of the aluminum 12's in a 1.25 cu.ft. sealed enclosure. The subs you want are model # SW8122.4 and match them to amplifier model# DA7122. This would be your best bet for some damn fine sq and a spl level that should play in the high 130db to low 140db range.Top Secret, I can tell you but then my wife will kill me.

How loud do you think 2 12" alluminums would be in a ported enclosure built to spec with the same setup as mentioned above?

Keep the subs to a sealed encosure, your first post was "while keeping good sq" these subs, driven propely in the proper sealed box are capabale of delivering output to the mid 140 db range, that is well into permanent hearing damage territory. These subs are expressly designed to play in a small sealed enclosure but can be made to work in a huge and not recommended ported enclosure. I do not recommend the ported enclosure at all for these subs unless it is a pure spl system.Top Secret, I can tell you but then my wife will kill me.

I gotta agree with Forbidden... I use a single Ti 9122 with the DA7122 amp, (I tried the 34230 first, and was disappointed... and that was on the Ti 10! Those drivers need much power, grasshopper!) and I can tell you from experience that the bass from the Eclipses long excursion drivers is AMAZING! That amp is a kick BUTT peice of gear as well... (it is NOT bridgeable, tho!) If you really want SQ, then the eclipse will do you well, as well as being as loud as anything out there! They do not do well in vented boxes, and you can use a small sealed enclosure. I got mine in one cube, (net) and stuffed with about 10 ounces of polyester fill. The deep bass from this driver is as good, fast and tight as anything I have ever heard. A single Ti driver with that amp will cost a little more than two aluminums, but I can GUARANTEE you won't blow it! (and I have tried ) Make certain you GLUE AND SCREW (with pilot holes) all of the sides, and HEAVY BRACING, to the point of your thinking it may be too much, is very much in order. That driver will take inferior enclosures apart! 2001 Honda Civic LX Eclipse 8051 E8 deck Eclipse 3122 driving Infinity emit Kappa tweeters 80w X 2 Eclipse 32440 driving Eclipse 89940 Point source 6X9's 120w X 4, bi-wired, bi-amped Eclipse 34230 driving Morel MW-162 6" midbass in doors 370w X 2 Eclipse DA7122 driving Eclipse SW9122 12" Titanium sub 1350w X 2 RedTop Optima 12v under the hood 2 RedTop Optima 6v in trunk, one each side wired in series 2 Rockford Fosgate 1 Farad caps on custom hand built power bars Alterstart 165 Amp alternator with Datel 150A Current Shunt and blue LED meter for monitoring current outputIt all reminds me of something that Molière once said to Guy de Maupassant at a café in Vienna: "That's nice. You should write it down."

so ummm, maybe just build a single layer 3/4" mdf box with a doubled up front face, then do some bracing. then put another 3/4" panel on each side? think that would be strong enough?