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View Full Version : 2 15''s in a cobalt



skippy90210
03-23-2014, 10:30 PM
i have a 4 door chevy cobalt and want to do 2 15''s and still be able to keep the back seats up anyone ever do this. i could easily build a box in the trunk but then it is pretty much un removable and since the battery is in the trunk you have to be able to move the box to get to the battery. so how can i make 2 15''s fit? if theres a way to re locate the battery then i could make the box bigger inside the trunk, whats everyones opinions?

Dmac1991
03-23-2014, 10:34 PM
2 smaller subs in comfortable boxes will outperform 2 bigger subs crammed in less than ideal boxes...food for thought.

I'd look into two 12s, or hell, even 4 10s. Right at or around 4 cf net and still a ton of room if you were contemplating 2 15s

UGHH
03-23-2014, 10:36 PM
2 beefier 12s. 1 beefier 15 or 18. But if you absolutely want to go 2 15s then the box will probably not be removable like you said. May be that way with 1 18 too. But I'd do 2 beefy azz 12s, like 2 Soundqubed HDC4s

NASTY08IMPALA
03-23-2014, 10:50 PM
i have a 4 door chevy cobalt and want to do 2 15''s and still be able to keep the back seats up anyone ever do this. i could easily build a box in the trunk but then it is pretty much un removable and since the battery is in the trunk you have to be able to move the box to get to the battery. so how can i make 2 15''s fit? if theres a way to re locate the battery then i could make the box bigger inside the trunk, whats everyones opinions?

My buddy runs a pair of 15s in his cobalt and its a drop in box ..hes running 2 custom zv3 15s on a ns1 ..u gota use a 8"aero and side fire tho..ill ask him the specs

NASTY08IMPALA
03-23-2014, 10:55 PM
http://i1315.photobucket.com/albums/t589/NASTY08IMPALA/Mobile%20Uploads/IMG_8969_zpsva3slwpa.jpg (http://s1315.photobucket.com/user/NASTY08IMPALA/media/Mobile%20Uploads/IMG_8969_zpsva3slwpa.jpg.html)
im not a fan of side fire in my car but its the only way to get 2 15s proper in that car

RangerDangerV2
03-23-2014, 11:22 PM
Ive seen 4 15s done in that same car with 2 ns1's and it did 55's, so yes, 2 15s will fit.

globalminds_ent
03-23-2014, 11:32 PM
Save some space and money run 2 lanzar max 15s won't be doin hair tricks but it will sound decent they sound pretty good sealed. Ive heard the 15s and the 12s. A friend of mine has had the same pair of max 12s since 2004 still running. That's if u care about trunk space if that doesn't mean alot to u go bigger

ThatChevyGuy
03-24-2014, 01:06 AM
Save some space and money run 2 lanzar max 15s won't be doin hair tricks but it will sound decent they sound pretty good sealed. Ive heard the 15s and the 12s. A friend of mine has had the same pair of max 12s since 2004 still running. That's if u care about trunk space if that doesn't mean alot to u go bigger

Dont get the max pros, i've used them. Terrible woofers. Max st= decent and get loud ported. A pair would like 1000 rms

phemps
03-24-2014, 02:00 AM
Ive seen 4 15s done in that same car with 2 ns1's and it did 55's, so yes, 2 15s will fit.

not in the trunk..

RangerDangerV2
03-24-2014, 09:05 AM
not in the trunk..

yeah, in the trunk.

basswiigee
03-24-2014, 10:06 AM
15s are fine no need to build in the trunk, theres a lever in the back seat both seats easily slide out and leave you with a 16in clearance on the height and i think 36 on width....one lever on right and one on left use a flat head to push in tab seat pull right out, same with other side....

basswiigee
03-24-2014, 10:09 AM
Ive seen 4 15s done in that same car with 2 ns1's and it did 55's, so yes, 2 15s will fit.

this had to be sealed in the littlest sealed box you ever seen... and all facing up ... i own the car... four 12s barely fit facing up in 1.25cu sealed boxes... and the only way to put a 15 in trunk is through the back other wise trunk clearance is on like 14..

basswiigee
03-24-2014, 10:13 AM
Id go for the beefier 12's... 1 aq hdc4 12 **** near knocks my back doors off... youd save alot of time and labor just doing beefy 12's ... look at my video in sig thats budget 12's tearing the ride up.... thats in the cobalt!!! id go beefy 12s....

skippy90210
03-24-2014, 11:33 AM
I just have a hard time giving up my 4 really beefy 8s for 2 12s. and since 12s and 15s arnt much different in price its hard for me to want the 12s you know because my 4 8s do hit pretty good I just want more lows. right now certain songs give me a little bit of window flex and makes my windshield wipers move. I just don't want to go through all this hassle get 2 12s and not be as loud

skippy90210
03-24-2014, 11:35 AM
http://i1315.photobucket.com/albums/t589/NASTY08IMPALA/Mobile%20Uploads/IMG_8969_zpsva3slwpa.jpg (http://s1315.photobucket.com/user/NASTY08IMPALA/media/Mobile%20Uploads/IMG_8969_zpsva3slwpa.jpg.html)
im not a fan of side fire in my car but its the only way to get 2 15s proper in that car

is there a video of that box? I think I might of seen it if you can get the specs that would be awesome, and is that enough air space for 2 15s?

NASTY08IMPALA
03-24-2014, 02:46 PM
is there a video of that box? I think I might of seen it if you can get the specs that would be awesome, and is that enough air space for 2 15s?

Yea its 33wide x16high x 32deep ..its either a 8 or 10" aero cant remember ..no video yet box just got built

RangerDangerV2
03-24-2014, 03:55 PM
this had to be sealed in the littlest sealed box you ever seen... and all facing up ... i own the car... four 12s barely fit facing up in 1.25cu sealed boxes... and the only way to put a 15 in trunk is through the back other wise trunk clearance is on like 14..

nope, ported. and it did mid 50's

RangerDangerV2
03-24-2014, 03:57 PM
this had to be sealed in the littlest sealed box you ever seen... and all facing up ... i own the car... four 12s barely fit facing up in 1.25cu sealed boxes... and the only way to put a 15 in trunk is through the back other wise trunk clearance is on like 14..

if you still dont believe me... LOL http://i1161.photobucket.com/albums/q513/bumpin101/415s_zpsb6f8641d.jpg (http://s1161.photobucket.com/user/bumpin101/media/415s_zpsb6f8641d.jpg.html)

Slobalt
03-24-2014, 04:12 PM
if you still dont believe me... LOL http://i1161.photobucket.com/albums/q513/bumpin101/415s_zpsb6f8641d.jpg (http://s1161.photobucket.com/user/bumpin101/media/415s_zpsb6f8641d.jpg.html)

Is it walled?

bubbagumper6
03-24-2014, 04:21 PM
If the battery is in the spare tire well you could pull everything out of there and use the extra airspace for your enclosure. Relocate the battery in the trunk to a more accessible spot. Fiberglass would be your friend if your trying to to get as much space as possible.

Slobalt
03-24-2014, 04:37 PM
If the battery is in the spare tire well you could pull everything out of there and use the extra airspace for your enclosure. Relocate the battery in the trunk to a more accessible spot. Fiberglass would be your friend if your trying to to get as much space as possible.

Not a bad idea if you want to put the work in. You could easily put a battery both sides behind the wheel wells.

RangerDangerV2
03-24-2014, 04:40 PM
Is it walled?

does it look walled? lol

bubbagumper6
03-24-2014, 04:42 PM
Not a bad idea if you want to put the work in. You could easily put a battery both sides behind the wheel wells.

Fiberglass isn't nearly as difficult as everyone makes it out to be. The difficulty comes in finishing it (i.e. giving it that mirror smooth polished look) but if it's an interior wall that isn't going to be seen it doesn't need finished, it can be left rough which cuts the majority of the work out. Laying the mat is easy.

Slobalt
03-24-2014, 04:46 PM
Fiberglass isn't nearly as difficult as everyone makes it out to be. The difficulty comes in finishing it (i.e. giving it that mirror smooth polished look) but if it's an interior wall that isn't going to be seen it doesn't need finished, it can be left rough which cuts the majority of the work out. Laying the mat is easy.

O I know still work tho and ppl are lazy

UGHH
03-24-2014, 04:55 PM
Just 1 AudioQue (Soundqubed) Hdc4 12. Pretty sure you'll be plenty happy with 2 if you power them right.

12" Audioque Hdc4 on Sundown Saz-3500 - YouTube (http://youtu.be/47WnKEq0H1g)

skippy90210
03-24-2014, 05:25 PM
Yea its 33wide x16high x 32deep ..its either a 8 or 10" aero cant remember ..no video yet box just got built

with those dimensions how did you put the box in through the trunk or back seats?

NASTY08IMPALA
03-24-2014, 05:40 PM
with those dimensions how did you put the box in through the trunk or back seats?

Im not sure its a buddy of mine ..not local

skippy90210
03-24-2014, 06:28 PM
https://www.youtube.com/watch?v=2pQSnhCyM8U&feature=youtube_gdata_player

Here's My 8S Wha Does Everyone Think?

phemps
03-25-2014, 01:00 AM
if you still dont believe me... LOL http://i1161.photobucket.com/albums/q513/bumpin101/415s_zpsb6f8641d.jpg (http://s1161.photobucket.com/user/bumpin101/media/415s_zpsb6f8641d.jpg.html)

how big is the box? it still looks way small for 4 15s

phemps
03-25-2014, 01:03 AM
I just have a hard time giving up my 4 really beefy 8s for 2 12s. and since 12s and 15s arnt much different in price its hard for me to want the 12s you know because my 4 8s do hit pretty good I just want more lows. right now certain songs give me a little bit of window flex and makes my windshield wipers move. I just don't want to go through all this hassle get 2 12s and not be as loud

2 12s has more cone area than the 8s, and you can get really beefy 12s. your logic of thinking is kind of flawed with wanting to get the 15s because they dont cost much more and are larger. given the constraints you have with your build 2 12s will be easier to get louder

skippy90210
03-25-2014, 01:09 AM
2 12s has more cone area than the 8s, and you can get really beefy 12s. your logic of thinking is kind of flawed with wanting to get the 15s because they dont cost much more and are larger. given the constraints you have with your build 2 12s will be easier to get louder

you may be right on my logic of thinking because im no expert on this stuff but im gonna scratch the 15's idea, keep the 8s buy 2 more and wall of 6 8s with a bigger amp lol easy way to get a bit louder just add to what you already have right? haha well if i do 6 8s would the sa8's like 1 cube each? so a 6cu ft box? or just stick to the .75 each? this is 99% most likely the route i will go so i want to know how big to make the box

skippy90210
03-25-2014, 01:09 AM
2 12s has more cone area than the 8s, and you can get really beefy 12s. your logic of thinking is kind of flawed with wanting to get the 15s because they dont cost much more and are larger. given the constraints you have with your build 2 12s will be easier to get louder

you may be right on my logic of thinking because im no expert on this stuff but im gonna scratch the 15's idea, keep the 8s buy 2 more and wall of 6 8s with a bigger amp lol easy way to get a bit louder just add to what you already have right? haha well if i do 6 8s would the sa8's like 1 cube each? so a 6cu ft box? or just stick to the .75 each? this is 99% most likely the route i will go so i want to know how big to make the box

phemps
03-25-2014, 02:13 AM
you may be right on my logic of thinking because im no expert on this stuff but im gonna scratch the 15's idea, keep the 8s buy 2 more and wall of 6 8s with a bigger amp lol easy way to get a bit louder just add to what you already have right? haha well if i do 6 8s would the sa8's like 1 cube each? so a 6cu ft box? or just stick to the .75 each? this is 99% most likely the route i will go so i want to know how big to make the box

first off that's not a wall haha i hate when people call that a wall, your sealing the enclosure off from the trunk that is all. AS far as getting louder by adding to what you already have, well that's kind of hit or miss in car audio. Whether or not you will see benefits from sealing the subs and port off from the trunk vs rear firing is vehicle dependent, they don't all work the same and i don't have experience with the cobalt specifically so someone who has the same car can chime in on best firing positions. box size will be dependent on a few other factors including amount of power being ran so you will want to talk to someone that is box a guru for that as I have never actually played with sa8s

basswiigee
03-25-2014, 08:59 AM
Just 1 AudioQue (Soundqubed) Hdc4 12. Pretty sure you'll be plenty happy with 2 if you power them right.

12" Audioque Hdc4 on Sundown Saz-3500 - YouTube (http://youtu.be/47WnKEq0H1g)

I vouch for that!!! you can hit 150's of two hdc4 12's easy!!!

basswiigee
03-25-2014, 09:05 AM
nope, ported. and it did mid 50's

sub facing up? I cant do that!!! lol those 12s knocked everything loose facing up!! I had to go through and replace all stock screws for 6x9s and triple coat my back dash and it still wanted to jump up and smack my back window.... god i know his trunk lid is off the chain!!! ... I wonder how much cf he has per sub!!! i know the trunk is about 10 cf but only like 7-8 useable cf....you have definitely peeked my interest danger...

skippy90210
03-25-2014, 09:34 AM
first off that's not a wall haha i hate when people call that a wall, your sealing the enclosure off from the trunk that is all. AS far as getting louder by adding to what you already have, well that's kind of hit or miss in car audio. Whether or not you will see benefits from sealing the subs and port off from the trunk vs rear firing is vehicle dependent, they don't all work the same and i don't have experience with the cobalt specifically so someone who has the same car can chime in on best firing positions. box size will be dependent on a few other factors including amount of power being ran so you will want to talk to someone that is box a guru for that as I have never actually played with sa8s

well like i said im no expert on all this which is why im on here looking for answers, well okay its not a wall im just sealing it off from the trunk i dont know the difference, but as far a power ill either get a second saz1500d and strap them or sell mine and buy a crescendo 3500d, i just want to know about how much air space i should be looking to get for 6 8's

skippy90210
03-25-2014, 09:55 AM
I vouch for that!!! you can hit 150's of two hdc4 12's easy!!!

did they change frome audioque to soundqubed? if so are the subs identical other than the logo? maybe i will go the 2 12s route on like a 4k-5k amp idk yet too many options and decisions and not enough money lol

NASTY08IMPALA
03-25-2014, 10:15 AM
did they change frome audioque to soundqubed? if so are the subs identical other than the logo? maybe i will go the 2 12s route on like a 4k-5k amp idk yet too many options and decisions and not enough money lol

Yes the subs are exaxtly the same they had to change name from audioque to soundqubed due to a lawsuit..everything in my car is aq except my ppi 4ch...i run a pair of the hdc4 12s on a aq3500.1

RangerDangerV2
03-25-2014, 10:21 AM
how big is the box? it still looks way small for 4 15s

still did mid 50s... so who cares?

---------- Post added at 09:21 AM ---------- Previous post was at 09:20 AM ----------


sub facing up? I cant do that!!! lol those 12s knocked everything loose facing up!! I had to go through and replace all stock screws for 6x9s and triple coat my back dash and it still wanted to jump up and smack my back window.... god i know his trunk lid is off the chain!!! ... I wonder how much cf he has per sub!!! i know the trunk is about 10 cf but only like 7-8 useable cf....you have definitely peeked my interest danger...

no, if you look at the picture I posted you will see that they are side firing with the port forward.

Dmac1991
03-25-2014, 10:37 AM
I just have a hard time giving up my 4 really beefy 8s for 2 12s. and since 12s and 15s arnt much different in price its hard for me to want the 12s you know because my 4 8s do hit pretty good I just want more lows. right now certain songs give me a little bit of window flex and makes my windshield wipers move. I just don't want to go through all this hassle get 2 12s and not be as loud

actually looking at http://www.samadhilounge.com/esa/images/TB/ConeArea.jpg

4 8s is down on the totem pole. 4 10s would be considerably louder and 3 10s/ 2 12s would be louder as well, all things equal

and if you're talking about 6 8s, 4 10s would still be better. Bump them up to 1.5cf each since you're still wanting your lows, or either bump up to 3 12s.

Your 8s, while they are beefy 8s, just can't compete when it comes to bigger beefier subs and the low end

NIHL8ION
03-25-2014, 10:45 AM
When those SA-8's are set up properly, they get pretty nasty for 8" subs... I think you would notice a big difference just merely upgrading your amp... A single 1500 on 4 SA-8's seems a bit on the weaksauce side to me, Especially if those are the SA-8 v.2's If you do end up going with bigger subs I'd definitely get a bigger amp...

basswiigee
03-25-2014, 10:45 AM
still did mid 50s... so who cares?

---------- Post added at 09:21 AM ---------- Previous post was at 09:20 AM ----------



no, if you look at the picture I posted you will see that they are side firing with the port forward.

I asked cuz the trunk is only 16in tall with the sub being 15in I would've liked to see the box, im not trying to argue... just if i could get more idea of it i may try going 15's but i couldnt get a l7 15 in there for nothing in the smallest prefab sealed on the market! lol other than facing up!!! i could live with side firing!!! and port forward... nice!!! danger do you know him? or something you came across? i still got that l7 in garage...

basswiigee
03-25-2014, 10:47 AM
did they change frome audioque to soundqubed? if so are the subs identical other than the logo? maybe i will go the 2 12s route on like a 4k-5k amp idk yet too many options and decisions and not enough money lol

I had my one hdc4 12 on a kx2500 putting out 2960w and it ate it!!! lol only single sub setup that made me happy!!!

NASTY08IMPALA
03-25-2014, 11:01 AM
When those SA-8's are set up properly, they get pretty nasty for 8" subs... I think you would notice a big difference just merely upgrading your amp... A single 1500 on 4 SA-8's seems a bit on the weaksauce side to me, Especially if those are the SA-8 v.2's If you do end up going with bigger subs I'd definitely get a bigger amp...

Yup ran a saz3500 on my buddies setup with 4 sa8v2s

NIHL8ION
03-25-2014, 11:15 AM
I had my one hdc4 12 on a kx2500 putting out 2960w and it ate it!!! lol only single sub setup that made me happy!!! Nice :) I've got my 12" Tantric HDD taking 2500+ rms and laughing at it... I've never clamped my amp yet, but it's efficient as h3ll, and I Know it does rated power and then some, My electrical is up to snuff now finally in my new vehicle - NEVER drops below 14v even when I'm pushing it HARD... My sub isn't even in the proper enclosure LOL... I Can't wait to add my other HDD and strap up my PAIR of 2500's on them once I build my enclosure :cool: Should get down pretty good :naughty:

skippy90210
03-25-2014, 11:20 AM
actually looking at http://www.samadhilounge.com/esa/images/TB/ConeArea.jpg

4 8s is down on the totem pole. 4 10s would be considerably louder and 3 10s/ 2 12s would be louder as well, all things equal

and if you're talking about 6 8s, 4 10s would still be better. Bump them up to 1.5cf each since you're still wanting your lows, or either bump up to 3 12s.

Your 8s, while they are beefy 8s, just can't compete when it comes to bigger beefier subs and the low end

well Im the kind of person that likes to be different haha I could possibly do 3 12s? get some used of here

skippy90210
03-25-2014, 11:23 AM
When those SA-8's are set up properly, they get pretty nasty for 8" subs... I think you would notice a big difference just merely upgrading your amp... A single 1500 on 4 SA-8's seems a bit on the weaksauce side to me, Especially if those are the SA-8 v.2's If you do end up going with bigger subs I'd definitely get a bigger amp...

well I was gonna do 6 of these 8s on a crescendo 3500d but im thinking doing 3 12's now and I would for sure get a bigger amp also my price range for everything is about 2k I can build my own box and everything I want to prevent getting an alt because that's 400 right there plus more 0ga for it I can do some batteries though, I also will buy used equipment so I know I changed my mind like 4 times so far but as of now 3 12s sound good haha

Dmac1991
03-25-2014, 11:38 AM
well Im the kind of person that likes to be different haha I could possibly do 3 12s? get some used of here

I too wanted to run 8s simply for the WOW factor. But then I realized how much cheaper and simpler, less bigger subs was

NIHL8ION
03-25-2014, 11:42 AM
well I was gonna do 6 of these 8s on a crescendo 3500d but im thinking doing 3 12's now and I would for sure get a bigger amp also my price range for everything is about 2k I can build my own box and everything I want to prevent getting an alt because that's 400 right there plus more 0ga for it I can do some batteries though, I also will buy used equipment so I know I changed my mind like 4 times so far but as of now 3 12s sound good haha 3 SA-12's on a 3500 would get down... Anything beyond that and you gonna need more powa ;) In my own personal experience: I've ran SA-12's, and bigger 3" & 4" coil subs in a trunk... You really don't gain a ton going with big extravagant more expensive 12" subs unless you seal off your trunk and have a ton of power to play with... Just food for thought ;)

skippy90210
03-25-2014, 12:30 PM
3 SA-12's on a 3500 would get down... Anything beyond that and you gonna need more powa ;) In my own personal experience: I've ran SA-12's, and bigger 3" & 4" coil subs in a trunk... You really don't gain a ton going with big extravagant more expensive 12" subs unless you seal off your trunk and have a ton of power to play with... Just food for thought ;)

What Are Your Thoughts On 4 Sa 12's On A Crescendo 3500D? That's The Route That I Will Probably Go Those Are Only 200 Each!

jeffdachef
03-25-2014, 12:43 PM
https://www.youtube.com/watch?v=2pQSnhCyM8U&feature=youtube_gdata_player

Here's My 8S Wha Does Everyone Think?

i'd say you'd be much happier with 2 powerful 12s. My single 12 does more damage then that so i'm pretty sure 2 2k rms 12s on 5k would please you greatly.

RangerDangerV2
03-25-2014, 12:45 PM
I asked cuz the trunk is only 16in tall with the sub being 15in I would've liked to see the box, im not trying to argue... just if i could get more idea of it i may try going 15's but i couldnt get a l7 15 in there for nothing in the smallest prefab sealed on the market! lol other than facing up!!! i could live with side firing!!! and port forward... nice!!! danger do you know him? or something you came across? i still got that l7 in garage...

I know him fairly well

Timmy13091
03-25-2014, 12:51 PM
I vouch for that!!! you can hit 150's of two hdc4 12's easy!!!

Quiet *** :)

skippy90210
03-25-2014, 01:21 PM
i'd say you'd be much happier with 2 powerful 12s. My single 12 does more damage then that so i'm pretty sure 2 2k rms 12s on 5k would please you greatly.

would 3 or 4 sa 12's be better than 2 beefy 12s plus if i get a 5k im most likely gonna need an alt and i dont want that ill deal with batterys though, because i can get 3 sa 12s cheaper than 2 beefy 12s and for another 200 get a 4th one remember im also on a budget so if someone has 3-4 sa 12s they want to get rid of pm me

jeffdachef
03-25-2014, 01:25 PM
would 3 or 4 sa 12's be better than 2 beefy 12s plus if i get a 5k im most likely gonna need an alt and i dont want that ill deal with batterys though, because i can get 3 sa 12s cheaper than 2 beefy 12s and for another 200 get a 4th one remember im also on a budget so if someone has 3-4 sa 12s they want to get rid of pm me

Triple 12s should be considerably louder then your 4 8s and it should fit a lot better then 2 15s crammed in. I think you can do 15s in a small airspace box but you'd need considerably more power and it would require you to take out your spare tire.

Slobalt
03-25-2014, 02:14 PM
2 hdc3 12's, that's my vote.

NASTY08IMPALA
03-25-2014, 02:15 PM
would 3 or 4 sa 12's be better than 2 beefy 12s plus if i get a 5k im most likely gonna need an alt and i dont want that ill deal with batterys though, because i can get 3 sa 12s cheaper than 2 beefy 12s and for another 200 get a 4th one remember im also on a budget so if someone has 3-4 sa 12s they want to get rid of pm me

U cant run 5k and dodge extra batts

skippy90210
03-25-2014, 03:14 PM
U cant run 5k and dodge extra batts

i dont want to run 5k really becuase i dont have the money, what sounds better 2 hdc3 on a crescendo 3500d or 3 sa12's on the 3500d? i narrowed it down to those choices.

T3mpest
03-25-2014, 03:41 PM
Thats still way too much for stock electrical.. even with a second battery much over 2k is pretty hard on most stock slots even beefier ones.

NASTY08IMPALA
03-25-2014, 03:44 PM
i dont want to run 5k really becuase i dont have the money, what sounds better 2 hdc3 on a crescendo 3500d or 3 sa12's on the 3500d? i narrowed it down to those choices.

U cant run 3500 with no extra batts either lol ..if u wana go 3 12s do 3 hds312s..they r 150 shipped and are 3"vc 1200rms..u gona be buying the bc3500 new? And if so just buy a sq3500.1 it does 4300@1 ohm for 799 ..better than the bc3500 ..ive ran both

skippy90210
03-25-2014, 03:49 PM
i will run extra batts though i said i didnt want to get a bigger alt i never said about not doing battery's, so what you're recommending is 3 hds3 12's on a sq3500? that sound like a decent plan to me.

NASTY08IMPALA
03-25-2014, 03:53 PM
i will run extra batts though i said i didnt want to get a bigger alt i never said about not doing battery's, so what you're recommending is 3 hds3 12's on a sq3500? that sound like a decent plan to me.

Yea thats a solid setup but it wont work on a stock alt very long at all

skippy90210
03-25-2014, 04:02 PM
Yea thats a solid setup but it wont work on a stock alt very long at all

with my money left after subs amp box materials im left with about 800 i could buy a new alt but do i have to change my alt wire my battery is in the trunk so i dont want to have to run the wire it has 4ga now would that be fine,

option two would be to upgrade starting battery's then add 2 extra batts

Slobalt
03-25-2014, 04:11 PM
Run 0 gauge, two runs is probably best tho for a sq3500

NASTY08IMPALA
03-25-2014, 04:48 PM
with my money left after subs amp box materials im left with about 800 i could buy a new alt but do i have to change my alt wire my battery is in the trunk so i dont want to have to run the wire it has 4ga now would that be fine,

option two would be to upgrade starting battery's then add 2 extra batts

U need 2 runs of pos and 2 runs of neg 0ga for that amp at least ..4 ga is not even close

NASTY08IMPALA
03-25-2014, 04:50 PM
Even upgrading starting batt and adding 2 batts u will be in trouble without a ho alt ..trust me i tried to get by with that same setup years and years ago trying to dodge a ho alt

NASTY08IMPALA
03-25-2014, 04:51 PM
Ur lucky ur batt is in the trunk ...i have over 150' of 1/0 in my car

NASTY08IMPALA
03-25-2014, 04:54 PM
I dont think u grasp the power range ur stepping into ..the sq3500 has 2 1/0 pos and 2 1/0 neg inputs ..its over 2ft long ...if u skimp on feeding it juice ur gona have a bad time

skippy90210
03-25-2014, 05:43 PM
okay im going to sum up everything as if i had it in my car right now and you can tell me if it will be proper

3 hds 3's

1 sq3500d

knukoncepts 0 ga wire

xs power starting battery(biggest i can fit) then 1 or 2 extra xs batts

mechman 240a alt

when i said 4ga wire thats how big my stock alternator wire is my power wire is 0ga already

NASTY08IMPALA
03-25-2014, 05:58 PM
8
okay im going to sum up everything as if i had it in my car right now and you can tell me if it will be proper

3 hds 3's

1 sq3500d

knukoncepts 0 ga wire

xs power starting battery(biggest i can fit) then 1 or 2 extra xs batts

mechman 240a alt

when i said 4ga wire thats how big my stock alternator wire is my power wire is 0ga already

Ditch the xs batts for duracell and save 600 bux

Slobalt
03-25-2014, 06:01 PM
okay im going to sum up everything as if i had it in my car right now and you can tell me if it will be proper

3 hds 3's

1 sq3500d

knukoncepts 0 ga wire

xs power starting battery(biggest i can fit) then 1 or 2 extra xs batts

mechman 240a alt

when i said 4ga wire thats how big my stock alternator wire is my power wire is 0ga already

We know that you nene two runs going from your alt to your positive battery and two run of negitive battery to chassis and two runs engine/alt ground to your chassis.

skippy90210
03-25-2014, 06:34 PM
We know that you nene two runs going from your alt to your positive battery and two run of negitive battery to chassis and two runs engine/alt ground to your chassis.

so i absolutly have to run 2 runs of 0 ga from my alt to my battery? one wouldnt be enough? i can see how i need 2 from the bat to amp and 2 ground

skippy90210
03-25-2014, 06:43 PM
8

Ditch the xs batts for duracell and save 600 bux

what do you mean duracell? do they make car audio batterys? if they do i never heard of em

NIHL8ION
03-25-2014, 06:54 PM
so i absolutly have to run 2 runs of 0 ga from my alt to my battery? one wouldnt be enough? i can see how i need 2 from the bat to amp and 2 ground - Add 1 good OFC run of 0 ga. from your alt to your vehicle batt for better charging.


what do you mean duracell? do they make car audio batterys? if they do i never heard of em Duracell AGM batts can be found at most Sams club / Costco / Ect. locations - Diehard Platinum is also good AGM type of battery. All he is sayin is XS batts are super expensive... You can get the job done a lot cheaper with off the shelf AGM batts you should be able to find locally ;)

skippy90210
03-25-2014, 07:01 PM
- Add 1 good OFC run of 0 ga. from your alt to your vehicle batt for better charging.

Duracell AGM batts can be found at most Sams club / Costco / Ect. locations - Diehard Platinum is also good AGM type of battery. All he is sayin is XS batts are super expensive... You can get the job done a lot cheaper with off the shelf AGM batts you should be able to find locally ;)

so i can just leave the 4ga on the alt and just add the 0ga and that will work?

also thanks for clearing up the info on the batterys, since they are way cheaper how many should i get to go along with the 240amp alt?

NASTY08IMPALA
03-25-2014, 07:09 PM
so i can just leave the 4ga on the alt and just add the 0ga and that will work?

also thanks for clearing up the info on the batterys, since they are way cheaper how many should i get to go along with the 240amp alt?
2 and yes always leave the factory wire on ..just add the 0

Popwarhomie
03-25-2014, 07:11 PM
Leave the factory wiring and add at least a single run of quality OFC 1/0 gauge. The AQ3500 requires a 380 amp fuse inline. KnuKonceptz OFC 1/0 is rated 375 amps for a 20' run.

Or even a single run of Sky High 2/0 OFC which is rated 700(?) amps for a 15 foot run and 500 amps for CCA.

I would also recommend Deka batteries over XS. Best bang for your buck with batteries IMO.

basswiigee
03-25-2014, 07:16 PM
would 3 or 4 sa 12's be better than 2 beefy 12s plus if i get a 5k im most likely gonna need an alt and i dont want that ill deal with batterys though, because i can get 3 sa 12s cheaper than 2 beefy 12s and for another 200 get a 4th one remember im also on a budget so if someone has 3-4 sa 12s they want to get rid of pm me

you gonna have to have the same power for those 4 sa 12s as the 2 beefy ones... i got a mechman 260amp alt for chevy cobalt too! only had about a month of use on it...

basswiigee
03-25-2014, 07:18 PM
with my money left after subs amp box materials im left with about 800 i could buy a new alt but do i have to change my alt wire my battery is in the trunk so i dont want to have to run the wire it has 4ga now would that be fine,

option two would be to upgrade starting battery's then add 2 extra batts

no, you just add to it!!! 0ga

skippy90210
03-25-2014, 07:22 PM
Leave the factory wiring and add at least a single run of quality OFC 1/0 gauge. The AQ3500 requires a 380 amp fuse inline. KnuKonceptz OFC 1/0 is rated 375 amps for a 20' run.

Or even a single run of Sky High 2/0 OFC which is rated 700(?) amps for a 15 foot run and 500 amps for CCA.

I would also recommend Deka batteries over XS. Best bang for your buck with batteries IMO.

would i need 380 amp fuse inbetween my alt and bat? or just inbetween the amp and bat? i know you should fuse by the alt and by the battery since its such a long run but does it have to be a 380amp fuse since its not going directly to the amp? its going to the battery's in the trunk first then to the amp.

also my wire is rated 375 at 20ft but since my battery is in the trunk it would be 5ft at the most, would i need a 380amp fuse for both runs to the amp because it has dual inputs or can it be 2 190amp fuses on each pos wire?

skippy90210
03-25-2014, 07:23 PM
you gonna have to have the same power for those 4 sa 12s as the 2 beefy ones... i got a mechman 260amp alt for chevy cobalt too! only had about a month of use on it...

are you selling the alt or are you saying it went to crap? haha if you are selling it im more than intrested but my cobalt is a 2010

NASTY08IMPALA
03-25-2014, 07:25 PM
would i need 380 amp fuse inbetween my alt and bat? or just inbetween the amp and bat? i know you should fuse by the alt and by the battery since its such a long run but does it have to be a 380amp fuse since its not going directly to the amp? its going to the battery's in the trunk first then to the amp.

also my wire is rated 375 at 20ft but since my battery is in the trunk it would be 5ft at the most, would i need a 380amp fuse for both runs to the amp because it has dual inputs or can it be 2 190amp fuses on each pos wire?

No u fuse for the wire capacity on all ...u can fuse each run at 300 and be fine...u can also use a g31 size in place of the factory size and add 2 g31s

basswiigee
03-25-2014, 07:26 PM
are you selling the alt or are you saying it went to crap? haha if you are selling it im more than intrested but my cobalt is a 2010

I took it out i may sale... see if it fits your ride!

skippy90210
03-25-2014, 07:36 PM
No u fuse for the wire capacity on all ...u can fuse each run at 300 and be fine...u can also use a g31 size in place of the factory size and add 2 g31s

okay im sorry to make you do this but with me being still very new to all this can you explain the fuseing for everthing i would need also what are "g31" is that the battery?

NASTY08IMPALA
03-25-2014, 07:39 PM
okay im sorry to make you do this but with me being still very new to all this can you explain the fuseing for everthing i would need also what are "g31" is that the battery?

Everywhere u have 0 gauge use a 300 fuse its easy to remember ..and g31 is a battery size "group 31" u can buy 3 and be good..they are 179 bux each vs the 370 or so for a xs d3100

---------- Post added at 07:39 PM ---------- Previous post was at 07:38 PM ----------


okay im sorry to make you do this but with me being still very new to all this can you explain the fuseing for everthing i would need also what are "g31" is that the battery?

Its no big deal im glad ur asking questions and trying to learn versus thinking u know alot like most newbs

Slobalt
03-25-2014, 07:44 PM
so i can just leave the 4ga on the alt and just add the 0ga and that will work?

also thanks for clearing up the info on the batterys, since they are way cheaper how many should i get to go along with the 240amp alt?
Yes just add to the 4 gauge

skippy90210
03-25-2014, 07:49 PM
Everywhere u have 0 gauge use a 300 fuse its easy to remember ..and g31 is a battery size "group 31" u can buy 3 and be good..they are 179 bux each vs the 370 or so for a xs d3100

---------- Post added at 07:39 PM ---------- Previous post was at 07:38 PM ----------



Its no big deal im glad ur asking questions and trying to learn versus thinking u know alot like most newbs

ill be the first one to tell you i have no idea what im talking about when it comes to these high end systems haha im just trying to learn about it so i can install everything myself since im on a budget.

now about the battery's where do you find them for that price?

NASTY08IMPALA
03-25-2014, 07:56 PM
ill be the first one to tell you i have no idea what im talking about when it comes to these high end systems haha im just trying to learn about it so i can install everything myself since im on a budget.

now about the battery's where do you find them for that price?

Only place that sells them is sams club

skippy90210
03-25-2014, 08:11 PM
okay i have one locally thanks for all the help!! looks like this is the final route im going 3 hds3's on an aq3500!! cant wait i hope it pounds way better than what i have!

NASTY08IMPALA
03-25-2014, 08:15 PM
okay i have one locally thanks for all the help!! looks like this is the final route im going 3 hds3's on an aq3500!! cant wait i hope it pounds way better than what i have!

U have no idea what ur in for ...just make sure u get someone to design u a nice custom box ..i suggest Buck; he does all mine

skippy90210
03-25-2014, 08:18 PM
U have no idea what ur in for ...just make sure u get someone to design u a nice custom box ..i suggest Buck; he does all mine

how much does he charge?

---------- Post added at 08:18 PM ---------- Previous post was at 08:18 PM ----------

i designed my box for my 8s completly but idk if i can go through all that again lol it was a pain

NASTY08IMPALA
03-25-2014, 08:30 PM
how much does he charge?

---------- Post added at 08:18 PM ---------- Previous post was at 08:18 PM ----------

i designed my box for my 8s completly but idk if i can go through all that again lol it was a pain

Depends on how complex u want it ..but max is 30 bux i think..he does some great designs

skippy90210
03-25-2014, 08:47 PM
well 30 isnt bad at all id pay that. ill shoot him a pm

NASTY08IMPALA
03-25-2014, 08:53 PM
well 30 isnt bad at all id pay that. ill shoot him a pm

Well worth not having to worry abt all the technicalities...all u gota do is follow the cut sheet

skippy90210
03-25-2014, 09:05 PM
i can do that haha

skippy90210
04-04-2014, 12:05 AM
Well worth not having to worry abt all the technicalities...all u gota do is follow the cut sheet

im back on this subject again still doing 3 12's hds3's on a sq 3500d but i heard if your doing a port through the rear deck the best thing do do is make a bandpass enclosure especially if your seats dont fold down. mine do but i like to keep them up because i often have passengers with me. should i design a bandpass for the 12's? and does that take more room? the way i have it right now is subs firing up and port firing up through the rear deck..like a normal ported box just that the port would be through the rear deck . im all for louder so if a 4th order will be doable in my car ill do that let me know what you think i want to start building in a few days

NASTY08IMPALA
04-04-2014, 10:07 AM
im back on this subject again still doing 3 12's hds3's on a sq 3500d but i heard if your doing a port through the rear deck the best thing do do is make a bandpass enclosure especially if your seats dont fold down. mine do but i like to keep them up because i often have passengers with me. should i design a bandpass for the 12's? and does that take more room? the way i have it right now is subs firing up and port firing up through the rear deck..like a normal ported box just that the port would be through the rear deck . im all for louder so if a 4th order will be doable in my car ill do that let me know what you think i want to start building in a few daysa 4th order for 3 12s is gona be huuge ..cuz u gota have sealed and ported sections for each sub

skippy90210
04-04-2014, 11:38 AM
a 4th order for 3 12s is gona be huuge ..cuz u gota have sealed and ported sections for each sub

okay well then i wont go for that haha ill just do a standard ported box with the port through the rear deck, is there any problem with having the subs firing up?

NASTY08IMPALA
04-04-2014, 11:56 AM
okay well then i wont go for that haha ill just do a standard ported box with the port through the rear deck, is there any problem with having the subs firing up?

No that should be fine ...just try to space them out equal distances away from the ports so u dont have unloading issues

skippy90210
04-04-2014, 12:43 PM
No that should be fine ...just try to space them out equal distances away from the ports so u dont have unloading issues

im going to have to have them in like a triangle pattern because my box is gonna be 15in tall 33.5 wide and 35 deep would that be okay?

NASTY08IMPALA
04-04-2014, 12:50 PM
im going to have to have them in like a triangle pattern because my box is gonna be 15in tall 33.5 wide and 35 deep would that be okay?

Yea i figured thats how u would do it just group them very close together with the baskets almost touching

skippy90210
04-05-2014, 12:33 PM
http://s1366.photobucket.com/user/stephen_rainelli/media/IMG_20140404_130014_073_zps376750ea.jpg.html?filte rs[user]=139825279&filters[recent]=1&sort=1&o=0

that should be a link to the image design of the top of the box if i did it right lol

skippy90210
04-05-2014, 12:34 PM
Yea i figured thats how u would do it just group them very close together with the baskets almost touching

i put a picture up in the comment above you just have to right click and open in new tab to see it.

NASTY08IMPALA
04-05-2014, 01:18 PM
i put a picture up in the comment above you just have to right click and open in new tab to see it.

That looks good

skippy90210
04-05-2014, 01:23 PM
That looks good

Okay I'll Have To Get Done Some Wood And Start Building!

skippy90210
04-10-2014, 11:23 PM
That looks good

312TB (http://proboxrocks.com/products/car-truck-enclosures/unloaded/turbo-bass/312tb)

would this be a better idea than building my own box with the aero ports? which would have better output?

mlstrass
04-11-2014, 03:52 AM
I would NOT put HDS subs in that enclosure, build your own to spec and you'll be happy...

phemps
04-11-2014, 05:03 AM
"universal port" lol

skippy90210
04-11-2014, 07:06 AM
well that escalated quickly lol okay i stick to my first idea it will save me money anyway lol

JayDubb757
04-11-2014, 07:07 AM
http://i1315.photobucket.com/albums/t589/NASTY08IMPALA/Mobile%20Uploads/IMG_8969_zpsva3slwpa.jpg (http://s1315.photobucket.com/user/NASTY08IMPALA/media/Mobile%20Uploads/IMG_8969_zpsva3slwpa.jpg.html)
im not a fan of side fire in my car but its the only way to get 2 15s proper in that car


Where did you steal this pic from?
I built this box and took that picture.

NASTY08IMPALA
04-11-2014, 08:16 AM
Where did you steal this pic from?
I built this box and took that picture.

No shlt jeff lol ....that honkey jon sent it to me

Anton Miller
04-13-2014, 11:16 PM
zv215s saz 3500, chevy cobalt, winning - Car Audio Classifieds (http://www.caraudioclassifieds.org/forum/sundown-audio/127910-zv215s-saz-3500-chevy-cobalt-winning.html)


2 - 15's totally dont work in this car, should never try it...

https://www.youtube.com/watch?v=PsqNYwi10iY

https://www.youtube.com/watch?v=QG3uyH4nwPI

https://www.youtube.com/watch?v=BFntGVvBh8k

And yea, 152's drop in on single ns1 is what the best we could get....

oh, and we did do the 4 - 15's ported. had a woofer failure and havent tried it since. but it worked and it was getting loud...

be creative.... oh, yea. 2 ns1's, 4 15s, and 5 batteries. thats about all that CAN fit in that trunk....

Anton Miller
04-13-2014, 11:19 PM
https://www.youtube.com/watch?v=Stx_CjBqIUw

12" outside the car. 2 zv4 15's on a crossfire 8k at 1 ohm (like 4k clamped) hes the one on the left. yes... lost to 2 m4a's and 2 dd9915s.

skippy90210
05-01-2014, 01:20 PM
No shlt jeff lol ....that honkey jon sent it to me

I just am deciding to build I nicer box for my 8s and throw a bigger amp on them, so I have a bunch more questions now haha

1. how much port area should I use for 4 sa8 v2's(right now I have 51sqin)

2.should I make my box with more cu ft inside maybe like 3.5-4 cuft(right now its right around the recommended of .75^3 per sub so 3 cu ft all together)

3.i want to hit the low notes harder so should I tune it around 32hz(box is right around 36hz now) also I am getting a sq2200d instead of my saz1500d

what does everyone think?

JayDubb757
05-01-2014, 08:44 PM
rebelfromva ;

NASTY08IMPALA
05-01-2014, 09:03 PM
rebelfromva ;

He doesnt get on here anymore he forgot his password and is too lazy to reset it

basswiigee
05-06-2014, 11:33 AM
zv215s saz 3500, chevy cobalt, winning - Car Audio Classifieds (http://www.caraudioclassifieds.org/forum/sundown-audio/127910-zv215s-saz-3500-chevy-cobalt-winning.html)


2 - 15's totally dont work in this car, should never try it...



https://www.youtube.com/watch?v=PsqNYwi10iY

https://www.youtube.com/watch?v=QG3uyH4nwPI

https://www.youtube.com/watch?v=BFntGVvBh8k

And yea, 152's drop in on single ns1 is what the best we could get....

oh, and we did do the 4 - 15's ported. had a woofer failure and havent tried it since. but it worked and it was getting loud...

be creative.... oh, yea. 2 ns1's, 4 15s, and 5 batteries. thats about all that CAN fit in that trunk....

yeah everybody knows you can put two, got any pics of the 4 15s ported in a 10cbft trunk... (and considering how both sides dip i just gotta see it too believe it!) i own a cobalt... 4 12s in sealed boxes and i could barely fold up back seat... and thought it was quite funny when he had the two 15's in there the latch **** near hits the amp cuz theres no room... in the vidz!!!

---------- Post added at 11:33 AM ---------- Previous post was at 11:32 AM ----------


I just am deciding to build I nicer box for my 8s and throw a bigger amp on them, so I have a bunch more questions now haha

1. how much port area should I use for 4 sa8 v2's(right now I have 51sqin)

2.should I make my box with more cu ft inside maybe like 3.5-4 cuft(right now its right around the recommended of .75^3 per sub so 3 cu ft all together)

3.i want to hit the low notes harder so should I tune it around 32hz(box is right around 36hz now) also I am getting a sq2200d instead of my saz1500d

what does everyone think?

clear your pms... yes i still got the ho alt...

---------- Post added at 11:33 AM ---------- Previous post was at 11:33 AM ----------


rebelfromva ;

havent heard that name in a minute where he been at? lol

Beatin'
05-10-2014, 09:38 AM
https://www.youtube.com/watch?v=Stx_CjBqIUw

12" outside the car. 2 zv4 15's on a crossfire 8k at 1 ohm (like 4k clamped) hes the one on the left. yes... lost to 2 m4a's and 2 dd9915s.

****, that stadium is packed. Car audio is so popular.




lolololol