I know that this may seem over the top (in fact I know it is) but I was wondering if I would have any problems with this settup;

Currently I have the following in terms of my trunk:
2 Kicker L7 12" subs (750WRMS each)
2 Visonik 1000W High Current D class AMPS 600VH
2 Ported Boxes fused together in my trunk
1 MA Audio 1 Farad Capacitor

What I am currently looking to put in the trunk:
4 L7 12"
4 1000W Amps
2 Capacitors
get rid of the boxes and make the whole trunk a semicircle of speakrs with the amps in the middle. Would I run out of space, or would I not have enough air to push, would there be any concerns in terms of if my car could handle that?

I'm not 100 percent possitive on the air space neede for the solobarics, however I'm sure that they can be installed in a smaller sealed box than ported. If this is the case you frequency will go up from @22 Hertz to approximately 37 hertz, not as low but sound quality would be better as well as packaging space.

If you fill your quarters, as well as the trunk lid, and spare tire well you shouldn't have rattles.... I don't think that dynomat sheets will work but it has surprised me in the past, just make sure that who even installs it does it right and you have a minimum of air bubbles...."elbow greese need apply"

No, I am going to be doing the entire install by myseself, with a few friends. The reason I want such a huge system in there is because we are having a sound contest in a few months and I am entiring in the sport compact four door class. I know if I got this done, it would probably take some podium, cause with the two i have now, it hits so hard i can barely stand being in my car with the bass turned up.

Originally posted by jedibow
If this is the case you frequency will go up from @22 Hertz to approximately 37 hertz, not as low but sound quality would be better as well as packaging space.


what are you talking about?

anyway, build a ported box for the subs you have now, trust me. The Kickers love ported boxes, and you could have a swappable port at say 30Hz for daily driving and 50Hz for competitions. It will be almost as loud as adding 2 more L7s, still take up the same amount of space, cheaper, and you won't have to worry about electrical problems like you would with 4000 watts (if those amps really put out 1000 watts)

putting those woofers in would be a huge waste of space and money, if you want insane spl i can give you some suggestions

Originally posted by thumper10s
putting those woofers in would be a huge waste of space and money, if you want insane spl i can give you some suggestions

More SPL than an L7?? Like what?

a DD 9515 could quite possibly be louder, or 2 DD 9512

probably several others too, these just popped off the top of my head

Well see the big problem is that I already have two L7 12", and each of them has their own ported box, firing in opposite directions. It hits so hard my sunglass holder keeps popping down and my windsheild wipers jump off the windshield, should I just stay where I am or would the addition of more subs be more beneficial for the cost? I want to get it metered the way it is now.

oh I didn't see you had them ported (lol, I just scanned the first post, teaches me...)

I don't see how you could want anything louder than that, seriously. I bet you could win competitions pretty easily with that setup, unless the people in your area have some insane setups.

what size are the boxes and what are they tuned to?

The boxes are (i think off the top of my head) 3'X 1 1/2' X 1 1/2' each and they are both tuned at 45 Hz (again I think). So it is a wonderful setup the way that I have it. I am probably pretty close to having the loudest setup anyone has (sport compact ways) in the boro', but is there any possible way to make it louder than what it is now? The setup doesnt look good in apperance, but it blows people away with bass.

That much power/subs will turn your car into a microwave oven. The sound pressure level will cook your brain. You should hold contest to see how long people can sit in your car before their head explodes.

45Hz?
damn, I hope you have a pretty steep SSF set around 40Hz to keep the subs from destroying themselves. I can't imagine how bad that sounds for music though if it really is tuned to 45Hz, you're cutting off half the bass frequencies by having it tuned that high. It will definately make you meter higher though. If you meter it with a ~50Hz test tone you should get the highest number, should be pretty sick.

I know it is great system setup and I am really trying to get pictures up on the site to see how huge the box is, but how can I get more power?

DOOO ITTTT!!
that'd be insane...but by the sound of it it seems like your car already is pretty nutty.
it could go both ways like if u have the $$$ to spend on it i guess u could but in a way also r u gettin anything out of it except ppl being shocked as hell and a bit of prize money at spl comps

mmmmmmmm prize money, ahhhhhhh

You go to GA Southern? Heh..

Yep, I am down in the boro'. The street scene here is pretty good for the amount of people here, the thing is that there are like 20 some odd 300Z, many of them TTs. So my little sentra cant keep up, so I figure I might as well blow them away at SPL comps instead, at least I have a fighting chance. But does anyone have any advice as to what would get a bigger boost to my system?

get new amps, and mumra i laughed when i saw that you asked me what woofers would be louder, here are a few dd 95and 97 series, re xxx and there other model, treo woofers, beyond audio inhuman,orion h2

there are a couple for you if you need more just ask

Ok, I dont really need more amps. I was just wondering if I got some larger midbass speakers if it would help out with the deep bass, say some good 5X7, or heaven forbid 6X9s.

yep those are for mumra, my suggestion to you is get new amps

Why specifically get new amps? The ones i have now are fine and if i really need too that bad, then which ones do you suggest.

you will get higher output from your current woofers by adding more power and more effecient power, i would do like 1500 watts rms each, the amps you are using now are ok but you would get large gains with new amps

i do not beleive that those amps are very effecient, they require about 2/3 more current for the same power as other amps

no no no, the L7 12" are rated at 750wrms, so I would probably want to go with 1000wrms to each. The amps are high current amps and my car can handle that.

no your car cant, high current amps need 14-15 constant, your car can only stay at12.5 to maybe 13, those woofers can handle a lot more power than what they say, overpowering woofers is not a problem at all unless the power is not clean, trust me

i must say that you are crazy, too much bass is not a good thing.

kicker L7's are alright for big bass but are by no means one of the best, get one mtx rfl and use both amps to power it and then you'll know what big bass is.

Nope, I am super green. And yes, I am crazy, crazy as a fox!!! But in regards to the high current amps, I have a capacitor and the read out is usually at 14.2 or 14.3 when the car idles without any bass, but it will quickly drop to 11.5 or 11.6 when i get a good bass hit.

Originally posted by thumper10s
get new amps, and mumra i laughed when i saw that you asked me what woofers would be louder, here are a few dd 95and 97 series, re xxx and there other model, treo woofers, beyond audio inhuman,orion h2

I guess that’s arguable. L7's are some of the loudest subs available. The xxx would not be a louder sub. Their new series may be (I think its HX or something) but I doubt the xxx. I know a guy who hit over 150 DB (legal) with 1 12' L5. Those freekin subs are loud. DD I've heard are very loud as well, but I have never heard one personally.....I think you’re right though when you told him to get some new amps. That is obviously the weakest link in his system when it comes to total SPL's. Those amps are notorious for not putting out anywhere near their suggested output. My suggestion would be to get some new amps as well.

yep your system can not sustain 14-15 volts, you cannot have that much change for that amp to be putting out its proper power, high efficiency class d is the way to go get something thats runs at 12 volts with full power, not something that take 14-15 volts to get full power, ithink the xxx might be as loud- they have one sub thats louder its a step up from the xxx like 4000 rms, and oh yeah i forgot one of my favorite woofers memphis lvs

Yea...I've heard the memphis stuff is loud too but I've never heard any of their stuff. I guess I'm not much of an SPL guy but I still like it LOUD sometimes :)

hows your e15a doin

I think that you guys are right, I am probably going to exchange my amp, just tell them something was wrong with it, and get company cash for say a nice 2000-2500wrms class D, but thats probably gonna run a huge chunk of change. The setup that I have now works fine, the amps feel like they are throwing out about 700-800W verses the 1000w they are designated at. In regards to those memphis lvs's, a buddy of mine has 8 in his civic hatchback, built up as a wall of speakers.

that civic must be crazy loud

those L7's will take alot more power, I would suggest a nice Memphis amp for each sub. are you subs dual 2 or dual 4?

Originally posted by thumper10s
yep your system can not sustain 14-15 volts, you cannot have that much change for that amp to be putting out its proper power, high efficiency class d is the way to go get something thats runs at 12 volts with full power, not something that take 14-15 volts to get full power, ithink the xxx might be as loud- they have one sub thats louder its a step up from the xxx like 4000 rms, and oh yeah i forgot one of my favorite woofers memphis lvs

i know you like the LVS subs, but have you tried the MOJO subs yet? they are killers, and they also have a new sub coming called the MOJO Mad Max

the L7s are dual 4's and I was on the kicker website today and to my wonderful amazement, they recently announced (i think) that they are producing the Solo X 18" that make 5,000WRMS in 12" and 10" sizes, which would fit into the existing boxes i have now. The 12" hold 2,500wrms!!! I just felt like i needed to through that in there. But I am thinking of just sticking with a kicker amp.

http://www.kicker.com/ShowPage.cfm?filename=04solox.htm thats the website for the Solo X's

if your going for maximum spl you are truly an idiot for going with kicker, mtx makes far louder subs as well as cerwin vega with the stokers, a local company makes subs that with one starting with a ten, will be louder then both kicker l7's.

Originally posted by specracer2
if your going for maximum spl you are truly an idiot for going with kicker, mtx makes far louder subs as well as cerwin vega with the stokers, a local company makes subs that with one starting with a ten, will be louder then both kicker l7's.
Wait, I am not an idiot. I got the kicks because of a mixture of SQ and SPL, but then realized they do have amazing SPL power. And honestly, I know a lot of damn speakers that are louder than two kicker L7 12" subs each with its own ported box at 45hz. Yep, like the ones i am really thinking about replacing them with Solo X's, that would be sweet.

alright then but there still is no logic behind spending more money on subs or amps, try tuning or building a box, that in my experience has been the best thing to do, for a single sub i have built 7 boxes in two years. I am now satisfied with it in sq and spl which like you is what i'm going for, maybe a better amp is in order though if you want an increase in spl and sq, perhaps and mtx class D, which will put out a very clean 1600watts rms.

Originally posted by thumper10s
hows your e15a doin

The 15A is still working good I'm glad to report. (Could the third time be the charm?) I really didn’t start putting it to the test until this last week to be totally honest. I wanted to make sure that thing was really broken in before I started to apply a lot of power to it. So far it hasn’t disappointed me yet; very loud, clean, and deep. That aluminum reinforcement has helped it survive I think. I'm really looking forward to putting it in a ported box, but I'm kind of lazy right now with the cold weather and all.

I heard a lot of negative press about the design flaw in those subs. You'd think that they would come up with a better solution than a metal support. The funny thing is that people still recommend them up and down on the forums. Oh well, makes me glad that I have a Brahma. :)

Originally posted by Maxx
I heard a lot of negative press about the design flaw in those subs. You'd think that they would come up with a better solution than a metal support. The funny thing is that people still recommend them up and down on the forums. Oh well, makes me glad that I have a Brahma. :)

They had quite a few problems with the former separating from the cone, or cracking the cone in many cases. Reinforcing the cone with a metal backing to make it stronger and so the former could attach better was probably the easiest and best solution possible.

Originally posted by Maxx
I heard a lot of negative press about the design flaw in those subs. You'd think that they would come up with a better solution than a metal support. The funny thing is that people still recommend them up and down on the forums. Oh well, makes me glad that I have a Brahma. :)

Ofcourse it helps that a lot of people recommending it have HAD a Brahma AND had to get a replacement 15A and STILL recommend it... but whatever.

Originally posted by specracer2
alright then but there still is no logic behind spending more money on subs or amps, try tuning or building a box, that in my experience has been the best thing to do, for a single sub i have built 7 boxes in two years. I am now satisfied with it in sq and spl which like you is what i'm going for, maybe a better amp is in order though if you want an increase in spl and sq, perhaps and mtx class D, which will put out a very clean 1600watts rms.

The boxes that I have right now are fine and work great. Each L7 has its own ported box (45hz) so they put out pretty good. I think that I may just get another amp, because I have really been thinking about it recently. I am probably gonna go with a 2000 wrms amp, because the subs are rated lower than their true power is.

I am thinking about going with this amp or the equivalent of;
http://www.crutchfield.com/cgi-bin/S-alZ3UhBN6Zm/ProdView.asp?s=0&c=3&g=130&I=5751501BD&o=m&a=0&cc=01&avf=N

Originally posted by specracer2
if your going for maximum spl you are truly an idiot for going with kicker, mtx makes far louder subs as well as cerwin vega with the stokers, a local company makes subs that with one starting with a ten, will be louder then both kicker l7's.

youre the idiot, mtx and vega ha ha, the stroker might be louder if it didnt break once full power is added to it, and i do not beleive that the company your talking about can make a 10 that is louder than 2 l7, it is mathematically impossible- the 10 does not have enough displacement-please think before you talk i dont remember seeing mtx and vega on my list of louder woofers

I hate to break up the cack fight, but what would you suggest in terms of the new amp that I want to get. Do you think that Rock Fos. 1501bd would be enough to power the subs, its 1500wrms and is rated about the same as the subs so I think that it would be perfect. That coupled with my mids amp would bring total max watts to about 3000 + 1200 = my trunk falling off.

why don't u think about upgrading ur electrical system first...like a new alternator. I tested out how much current my amp draws on half volume, and it draws 40 amps. at idle, a spec v alternator produces 35 amps, i dunno how much the gxe produces. that's just with 1 jbl bp1200.1 amp and a 15" kicker L7. Im gonna put another amp and kicker after i get my alternator. i suggest u do something about ur electrical system first.

how did you test that?

Originally posted by 02 se-r spec v
why don't you think about upgrading your electrical system first...like a new alternator. I tested out how much current my amp draws on half volume, and it draws 40 amps. at idle, a spec v alternator produces 35 amps, i dunno how much the gxe produces. that's just with 1 jbl bp1200.1 amp and a 15" kicker L7. Im gonna put another amp and kicker after i get my alternator. i suggest you do something about your electrical system first.

Where can I get a new alternator, how much would it cost, and how much of a difference is it going to make?

Can't you just get a capacitor and solve the problem?

Originally posted by sentrabeast
Where can I get a new alternator, how much would it cost, and how much of a difference is it going to make?

That question has been posed here a few times. You're probably better off seeing if someone can do it locally for you. I would try calling some local car audio stores in your area and see if they could recommend a local shop for you.

Originally posted by seven6ty
Can't you just get a capacitor and solve the problem?

:rolleyes:

Originally posted by seven6ty
Can't you just get a capacitor and solve the problem?

I dont blame you for not doing so, but if you checked the specs at the first of the page, you would have realized that i already have a capacitor for my car.