Sub Selection
 

I've got some 10 inchers in my trunk right now that are 250 RMS at 2 ohms and a frequency of 50-400hz. Im shopping around because im looking for a different type of sound plus a bit of an upgrade in wattage. What i have now is good for its higher/tighter bass notes but it cant quite hit the lows. Id like not to lose the ability to get the higher stuff but i also want to be able to hit more of the lower notes. So what i think i am looking for is something 12" with a frequency lower than 30hz and be able to hit at least 400 hz on the high end. Here is what iv been looking at so far:

Alpine Type R - 600 RMS / 23-400 hz
Kicker CVX122(CVX124) - 750 RMS / 18-500 hz
Clarion PXW1252 - 500 RMS / 20-1500 (i dont know if i believe 1500, anyone else not buyin that figure?)
Rockford Fosgate T1D412 (11T1D412) - 800 RMS / 29.4 - ?? (does anyone know this?)
MTX T812-22 (T81222) - I had this sub in my truck when i was 16 and loved it but it just doesnt stand up to the stats of the others...


Im thinking about using a bandpass box because i have a luxury car and getting the sound to go through the trunk is a bear. So my plan is to run custom made ports out behind the back seat of my car pointing at the glass. Should sound nice when im done.

The point of the thread is to stir some conversation as to what i should get. Any insight, tips, or even other suggestions that i havent listed are welcome. My price range is on/around the subs that i have listed.

Leaning towards the Alpines because i have always been a fan and they have a really nice 8" type R that i can throw in where my stock sub used to be and i can get the lower notes with the 12s and the higher ones with the 8"

Go with Digital Designs my friend just put one in a single 10 - 2500 series running in 2 ohms the car is a 97 trans am & wow it sounds good for one 10 !

What amp are you using?

Why would you cross subs over that high? (400Hz..?) I run dual tens and I prefer higher bass but I think the highest I've had them crossed over is about 80Hz.. I imagine crossing over so high while still going down to 30Hz or so would sound really muddy..

This is why i started a thread and it is why I was leaning to the Alpines. I figured that i wouldnt be able to get that high with the 12s so i could be running another 8" Type R.

No offense intended but I could fart in the back of a Trans am and it would sound good. Its a hatchback so anything will sound great. The subs i have in my car now were in a hatchback and sounded 2x as good as they do now..

No matter with that, i have a handful of amps i could use, not to mention that if i need more, i can get what i need after the fact.

what type of box do you have ?

how much space do you have and willing to use ?

Right now, i do not have a box for 12" subs. I am thinking i will have a bandpass box made and i will have custom port tubes made to come out and point at the glass on my back window. These darn lexus's (or just luxury cars in general) have a hard time getting sound from the trunk to the cab. They are designed to keep sound out. So another member on this forum told me to go with bandpass which should help with that as well.

lol have fun with your Alpines!

Each to their own on the brand I guess, but I'm still perplexed by your "up to 400hz" statement? My mids start at 150hz; I've never heard asub play that high, not ever seen an amp with a x-over setting that high- propbably for good reason. If you REALLY want your subs to go that high, try starting around 80hz and turning the x-over up from there and see if you'r ehappy with how they sound. Even modest 6" would do more than adequate midbass from 80-400hz.

No matter with that? lol.. you my friend are clueless.

another box design that may work is a transmission line subbox

you will not need alot of power and they are efficient
downfall is that they are a larger box (mine is 6 cuft for one 12 inch sub )

From what I understand a properly designed and stuffed transmission line is know to be fairly inefficient. Maybe if one foregoes the stuffing the efficiency increases, but realistically this design would probably not work very well for the OP's situation.

Can I recommend Creative Sound Solutions subwoofers - I just bought an SDX10 from them and am very impressed with the value and low distortion. http://www.creativesound.ca They also have a 12" design and some passive radiators avaiable. They're very versatile subs that can work in a variety of different box designs - and they're Canadian. :thumbsup:

here is an old video i found on youtube on transmission line sub box

dbs, I wasn't trying to knock t-lines - I'm a huge fan of 1/4wave box designs - I was just suggesting that it probably won't work well for behind the OP's back seats, particularly given the response range he's shooting for. A 12" driver will need a significant size TL box to get down to 22Hz.

Also, here's a quick summary of properly designed TL characteristics from http://www.mh-audio.nl/Transmission%...udspeakers.asp

Didn't think you were knocking t-lines just showing another option,
my variation of t-line boxes don't have anything in them except air

Nice article tho