Which sub/help!!! (IA,DD,Atomic)

[explosivesound 1]

First let me say that I absolutely hate having to ask a this vs that question. That being said I want to get the best setup for my preferences and have limited experience. I have had many different setups but only two serious setups. Both included identical parts (same car I blew one sub switched to another.) For electrical I had the big 3 done in 0 gauge, a normal battery in the engine bay with 4 red tops in the back, 5 single farad capacitors on a bus line, a Alphasonic 8 volt line driver, two Earthquake D3 amps, and a 240amp alt. It was in an old school 4 door buick century (yes the system was worth much more than the car lol!) At first I had a 15" Audiobahn Immortal Quad Coil in a 5 cube box ported to 34hz. I ran each amp to two coils and had the amps matched for output. The box sat on the rear seat. The immortal was quite impressive to me but not nearly loud enough. I kept popping voice coils and after awhile got sick of that (in hindsight I have a feeling that the alt. wasnt enough and eventually the system would clip and pop a coil) Then I switched to a DD9515f. Now that I was impressed with but eventually started popping coils (It was in a 5.5 cube box at 34hz.)_ Most people couldnt stand being in the car but it still wasnt loud enough for me. I dont care about comps. but I want it to give that feeling of being choked and hardly being able to breath. So its for rediculous daily with demo capability (hairtricks, etc.) I listen to tons of bass music (bass mechanik, bass 305) and hip hop. I love the lows, not too fond of any peaky bass at all. I have bought most of what I need (electrical) for my new car but still havent decided on amps/subs. Car is a 2000 Pontiac Grand AM. I have 4 PowerMaster D3100's, a 320 amp alt. and Ive run a few runs of 0gauge to the back of the car. Ive got fiberglass and a ton of MDF. I absolutely want a wall behind the front seats. I can do a 20cube box (thats going into the trunk a bit!) Now the this for that. Budget for subs would be in the $1200 range, I cant afford much more because I still need amps and other parts for the car. I have done as much research as I can locally but there are no dealers of ANYTHING other than mainstream stuff (Kicker, JL, MTX, RF, etc.) and my DD blew those products out of the water ( Ive had an MTX 9500, a Kicker L7. and a Boston G5.) My ideas are: two 21" IA DP's (10 cubes each works perfect with box size), two DD9518G's with composite cone, or two Atomic APXX18's. By the way I could care less about SQ!!!! I know the DD and Atomic's have higher thermal handling and higher power handling. The DP's obvioussly have cone area on their side. So will the DP's even only taking 1500-2000 rms hang with the other two powered by double that? I plan on tuning around 29hz. with a 24db slope on crossover at 25hz. and under to help the drivers from unloading. I do notice the APXX has by far the lowest XMAX but I understand thats common in a SPL sub. Unfortunately without T/S parameters I have no clue the sensitivity on the DP, but the Atomix is 97.1 1w/1m and I believe the DD is about 94 1w/1m. Also will the low frequencies be hard on the Atomic at lower frequencies since it doesnt have much XMAX? As much as I see the reviews on FI/AA and similiar brands I wouldnt choose them over DD. So I guess its between these 3. Either way I imagine with a wall and any of those subwoofers it will be stupid loud, but Id like to feel confident that I got the best for my application. Oh and to clarify about amp power I would probably run a Sundown 1500d to each DP, the Atomic's and DD would at least see a Sundown 3000D each. I appreciate anybody that took the time to read this and give me feedback. I want to give thanks ahead of time. And I will start a build log when I start the box after getting the Subs/amps! Thanks everyone!

[AlanHall 6]

why not just do 4 smaller 15s? so that way you have more motors/coils and not burning them up all the time. those D3 are dirty and wil be hard on whatever you get . i would stear cleaer of the atomic. George makes good product but very much lacks in customer service.

[will3 2]

The DP's are underrated and in my opinion the cooling design on the DP is just as good as the Atomic, if you are looking to tune to 29hz either the DP21 or DP18's is what I would recommend, out of the 3 you have listed , having said that the DD's and Atomics are great subs and I have never had a problem with George, or his customer service ( but it is nowhere near as good as Nick's @ IA ) but I would look @ tuning them Higher than 29hz , if you choose to go with either the (9500 or APXX )

and I would recommmend running a IA20.1 to each DP .

[bassahaulic 155]

why not just do 4 smaller 15s? so that way you have more motors/coils and not burning them up all the time. those D3 are dirty and wil be hard on whatever you get . i would stear cleaer of the atomic. George makes good product but very much lacks in customer service.

x2

[explosivesound 1]

I stated in my posting I will probably be using Sundown amps. I will not be using Earthquake. I have heard negative things about Earthquake amps so I definitely wont be going that route again. I spoke with Atomic and DD they told me the same thing about the Earthquake amps. I will also be using an o-scope to make sure nothing is sending a clipped signal. I cant go with 4 15's in any of those brands because of cost. I did the math on cone area and the two 21's would be 692.37 and the 18's would be 508.68 so the 21's have much more cone than I realized. My wife just chimed in she likes the way the DD's look (lol) and doesnt like the Atomic's, so I guess its now down to the DP21 or DD9518G!

[wattsgoinon 1]

aq hdc3 18's same as the 9500 at 1/3 of the price ive got two on a mmats 3500 and they play all day no probs and they play low. also aj is really good. hope you got plenty of room for port area though my box is 12 cubes net with the port 192sq in tuned at 38 and it plays low and loud awesomely i dont think you can ever find a better sub than that in that price range. but if you want to get low get low you could always run with the audiopulse lms ultra which they recommend you tune at 19 hz or go with their passive radiators to put the fz at 10-20 hz

[wattsgoinon 1]

they were only 670 shipped for the 2 18's and there amps are 638 shipped on the 3500 watt amp made in the same place as the dd amps