dbss88

?????????

HackAbuse

yes, in a sealed box.

If you go ported you can fit them, but it will be a SQUEEZE

dbss88

hmm maybe ill try that in a sealed box

SS33

with a torch and a Big F'n Hammer you can make anything fit

The better question is, why would you want two 15's?

I've had 15's before and think you can get better sound out of 3-4 10's or a couple of L7's

just my .02

dbss88

well i dont want 3-4 10s, plus its close enough to 12.. so there wouldnt be much room.

but how much do the L7's run i know those hit real good..


im just look for around 1000 watts RMS of power in the trunk. but i want somethin decent, but i heard that more cone area is louder...

say i had two. 15's at 500 rms each, and 2 12's 500 rms each... the 15"s would be louder... right?

mesatrin

No one can say that for sure. There is alot more that goes into it. Some thing but not nearly all are, air space, box selection (sealed is typically not as loud as bandpass or ported), sub efficiancy, how hot the sub is running, the clearity of the signal the amp is outputting.

t5munoz

you might have to go through the back of the seats but it will all work

06redlineb

2 12s will be good or one good 12.15s role to much.you can somtimes here the cones role on some bass hits.

EmperorJJ1

iTrader: (5)

hmm i want 15s and i asked but i was told 12s would probably do better... i may still do 15s

SS33

The main variable here is quality. If you power two high quality 12"s with a very clean and not overworked amp, than you will have great sound.

In my opinion for the same money, you can get a higher quality 12" setup that will save you room and sound better.

Unless you are trying to win audio comps than the couple extra dB gained from that extra cone space will be negated by the better sound quality from the 12" system

dbss88

yeah i dont care about sound comps, but idk maybe i will just get stronger 12's. but i want qauilty, and something that will still pound the ground.

my curren system is 2 12" mtx thunder 5500s... that are underpowered at the moment. but it could be 600 rms total



so if i just stuck with 12's, what should i get.. any suggestions... dont go and find me like 500$ 12" subs cuz i cant afford that..

but i still want something decent, better than mtx

halfj99

mtx makes some decent stuff...but ne ways..what are you looking to spend on subs? do you have an amp?..if so post a link to it with its stats to help us find ya something that would work well

also polyfilling a sealed box makes for a nice increase in sound

dbss88

what is polyfilling?

and idk id spend maybe 500 or so total..depends on what i can get for my old system.. my current amp is too weak for my subs.

EmperorJJ1

iTrader: (5)

oh btw i talked to my "dealer" today and its been decided my T30001bd amp will power 2 DD 9515 subs. Now all i need is the box and the subs themselves

mesatrin

With subs like that even with 15's you will still get very nice sound quality out of them as well as volume. These will be a good mix of really low lows and SQ.

In the car audio world people use too many generalizations. Like 15 will be loud but wont have good sound quality...No this is false. Some 15 will not have great quality because they are not made to. The manufature makes them to be nothing more than loud because that is what most people use them for. Also, cone size is not the be all end all of if your sub is going to be louder than another sub. It has something to do with it but not as much as everyone plays it up to be

Or a smaller sub has better responce time and is more accurate...Again this is just not true. Alot of times this might be true but there is more factors that go into this other than just size (linear excursion rate is a rather large factor in responce time, as well as air space).

And the one that I always love to hear, JL is the best there is . People that say this have most likely heard a rather limited amount of quality speakers. Even in thier price range I don't like the way they sound in comparison to some others. I personally would take an alpine R-type, X-type, or Power Series RF over an JL speaker any day. I just don't like the way they sound. Or maybe it is the fact that I hate the way people play them up and say they are better than everything else. Go listen to a high end soundstream sub, or a solo X, and then try to say they are loud. Go listen to some high end Critical Mass subs and then say they are the best sound quality sub there is, or even playing the same game as the critical mass sub when it comes to SQ or SQL.

SS33

^All valid points, there are no set in stone X is better than Y rules.

But when trying to build on a budget and get the most bang for the buck you will typically find that your money will travel further with a smaller sub combo. And we can all agree that a top of the line 10" system will sound many times better than a bottom of the line 15" system that costs the same ammount.

I personally would rather have two 10" L7's, being cleanly powered by a nice old school PPI, or Orion HCCA etc. Bigger subs can hit slightly lower notes, but in 99% of the music we listen to that diff is negligible.

The other main factors to consider are how much of that trunk you tie up, and for us performance minded individuals,,, more importantly how much weight will you be lugging around everyday.

It's been a few years since I was big into Audio, but I've spent many thousands of dollars and years learning some of these lessons. Bigger doesn't always mean better

EmperorJJ1

iTrader: (5)

yup i decided on DD because of sq not because of volume... although it works well with getting loud my goal is very very low and great sq with enough power to handle up to 3688 watts (birthseet at 14.4 but i still need to work on my electricals to keep it at 14.4) because my midbass can and will bridge the gap between whatever the big subs cant play to (fs of my midbass is 40hz so they can go pretty low too)

I agree as well and it comes down to the individual goals that people want with each system... honestly IMO i could probably drive around with only my tweets mids and midbass and be louder then alot of people but thats not enough for me. And yes i bought this car for preformance but i also told the salesman to pop the trunk so i can see if i could fit 15s down the line.... but thats just me im pretty sure that other people wont and that much weight to their car and for them 2 10s, 2 8s or a single 12 would be the way to go (plus you can actually get it in the damn trunk... i will probably have to build my box in the trunk

ViDeo^_^kiD

Memphis Audio M3's, JL Audio V3W3's or 6, Boston Acoustics G5's

All good quality subs, all good quality sound. All loud. A car does not have enough airspace for 2 15's. The only way it is possible is if you face them foward inside the cabin and port them correctly. Not something you could achieve if you have to ask this question.

vB00STw

Wouldn't 1 8'', 1 10'', 1 12'' and 1 15'' sound the best? Kind of sounds like common sense because they all hit different.

UmeNNis

2 W7's FTW!

dbss88

lol like i could afford thast, im prolly gettin 2 12" alpine type-r's

EmperorJJ1

iTrader: (5)

yup i will be facing them foward with ports thru the rear deck and the box will be sealed airtight from the trunk.

dbss88

facing them forward as in towards the inside of the car? i tried that and it didnt sound as good for some reason.. that was in my cavalier tho.. didnt try it with my cobalt

EmperorJJ1

iTrader: (5)

facing forward only works good if the trunk is sealed 100%... reason why is because if you face subs back the wave has more time to form so it sounds louder and there is minimal cancelation but if you face them foward it has let time to form and some sound will go backwards and get "lost"... If the trunk is sealed air tight then you eliminate the sound going anywhere but foward and if i port thru the deck the wave will hit the rear window and get somewhat louder.

but for peeps that arent that crazy for audio i would face them back

OzzyruleZ

good lucky getting a 15 in the balt. i tried yesterday. i have a 15 solobaric l7. in a ported 16in tall box thats 30in wide that was built to fit the tight achieva trunk. the cobalt trunk is much lager but the holes to get in are much smaller... 16 inches is to tall and 30 is to wide it sucks.