best SQ sub for application

I dont want to make another post with "whats the best SQ sub" as im trying to be a bit more specific, im trying to find a great SQ sub roughly under $300 that will sound phenominal in a 1 foot cubic box or smaller. from what ive been reading a 10in brahma might do the trick, along with JL audio w6v2 or possibly Eclipse Alum (although ive heard the eclipse need 1.25cf to really shine), and last but not least IDQ 12. I would also prefer a decent amount of SPL nothing heart stoping but something that will definitly hit when i want it too (ive heard the jl 12w6v2 and 2 of them is as loud as i want). Any help would be greatly appreciated, thank you

All the subs you listed will have excellent sound quality. I'd pursuade you to model out your estimated SPL level and frequency response curves at the power level you plan on running it in AND in the box size you hope to use. Then you can throw all those woofers on the screen at once and compare. A modeling program won't list distortion levels, but you'll learn a lot from seeing the different subs at the same power level in different applications (enclosures). Check out WinISD pro. Most of those drivers are already loaded in the program. For instance, you might quickly learn that you need quite a bit more power to move a 10" brahma to the same SPL level as a w6v2 or an IDQ. Anyway, I can really only speak from hearing the JL and the IDQ in person. I think for small box applications the IDQ kicks the snot out of the JL. In a larger box, things even out some, but the IDQ really was designed for small boxes. New Project: 2003 Pathfinder

yea ive heard from many people for SQ the subs I named were the way to go, im not trying to ask which is the best SQ of the ones, as im sure i would be pleased with any.. what im trying to figure out is the best application for my car. i would be putting a clean 1000-1500 watts to the subs depending on which pair i end up getting (btw im looking for 2 subs) and probably running a line driver with the amp to boost the pre-out signal. so far it seems like IDQ would give me the most sub for the box size (looking at around .8 or .9 cu feet) but how loud do they get? Im not looking to crack my window but something that will definitly get some attention

I guess what im really curious about is how well the Eclipse and brahma do in a small box. if a single Brahma 12   in a 1cu ft box with 1000 watts would get me the same results as like 2 12in IDQ it would be my obvious choice

If you want to throw that much power, don't go with the IDQ. How loud do you want to get? 1000-1500w is frankly a stupid amount of power for subs unless you're competing or a closet bass-head. Did you try modeling it out like I suggested? It will tell you exactly what you're asking about SPL for a given application. New Project: 2003 Pathfinder

as for spl i cant just throw out a number and say i want to hit 150db for example, ive never been to a competition and can't really comprehend how loud to the ear a certain DB is. and if i just say i want it to be "loud" thats just way to general for you to get an idea. I guess my best example is to say.. i have 2 infinity kappa perfects right now and looking to upgrade, so whatever i get i want to be comparable in SQ just packing more punch, thats really the best i can do (and im currently putting 1200w RMS to the subs)

I downloaded that program you suggested, it doesnt have the brahma listed or the eclipse alum sub (atleast not the model number listed on the web page)... + its like foreign language to me

The Brahma is there. Under Adire Audio Brahma. You'll have to enter the Eclipse yourself. As for the foreign language stuff - time to start learning if you really want to know how to plan the best system. You do realize that you're causing permanent hearing damage, right? Anyway. Check out http://www.bcae1.com/ if you want to start understanding more. New Project: 2003 Pathfinder

lol, then what do you suggest for power if 1200 makes you go def

Well, it depends on the sub, the box, and the car. I suggest you read those pages and learn to use that program. It will help you understand a lot about audio, subwoofers, enclosures, power, and their applications. In a sealed box with 1200w rms a peice you're hitting 120+ db BEFORE cabin gain. With cabin gain, depending on the vehicle, you're probably pushing 135db+. In less than 10 minutes of listening at that volume you're causing permanent hearing damage. You may think I'm being stupid and old... You may even say that it doesn't effect your low frequency hearing much. You're right. It starts to affect your high frequency hearing. If you listen at 120db frequently you'll soon lose your ability to hear high frequency sounds clearly. Girls at the bar don't appeciate it when you can't hear their s, t, sh, or other high frequency sounds. Worse yet, if you're ever at a professional conference with background noise and can't understand the important contact you're talking to, you're in trouble. Anyway, it may seem "sweet" to blast 2400w now, but you might seriously regret it in a few years. New Project: 2003 Pathfinder