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Need help with 15" sub system

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Old Jan 13, 2007 | 01:50 PM
  #1  
camaro_ABN's Avatar
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Need help with 15" sub system

alright guys, i am going to say something that will sadly degrade my manhood. I know NOTHING about systems. I recently decided to rebuild my 1991 Z28. All of the mechanical stuff is handled but unfortunately the system has me stumped. I bought 2 15" Volfenhag subwoofers. I would like suggestions on anything you can give me. Box dimensions, what type of amp to get so forth and so on. I've read on here some but only thing i see for boxes on here is for 2 12's so you see the problem im running into. Thanks.
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Old Jan 13, 2007 | 03:06 PM
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From: Troy,NY
Car: 1989 camaro rs
Engine: 305 TBI
Transmission: 700r
well its casue the bigger the sub the more air space they need to sound good , 15's need alot of space and frankly 3rd gens dont have , i stuck with 2 tens in the back and my friend has 2 15's in his malibu (sp?) with better speakers but casue he has them in the trunk and smaller box they sound like crap were mine sound ALOT better then his

i still plan on getting 2 12's in a ported box behind the seat's (back seats taken out)
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Old Jan 15, 2007 | 09:35 AM
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Eats5.0's's Avatar
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From: Suffolk VA, Cleveland NY
Car: 84 Berlinetta
Engine: junk 350
Transmission: TH350
Axle/Gears: Moser 4.56
Bigger is not necessarily better when it comes to speakers. As has been said, 15's need a lot of room to move.
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Old Jan 15, 2007 | 09:56 PM
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From: West of Toronto
Car: 89 IROC
Engine: 305 TPI / ZZ4 cam
Transmission: Stage 2 700R4, LS1 driveshaft
Axle/Gears: Strange 3.42 w/ Auburn
First things first............WELCOME. I agree you do not have enough space to make the 15's sound decent. YOu could try putting some matting in the box you build to fool the subs into thinking there in a bigger box, but I would not bother. Understand that one 15 has the same cone space as 1.5 12". SO you have the equivelent to 3 12" subs. That's a LOT of bass. If that's what you want fine but remember wiht 15's you might get reverb from the speakers depending on the music. You could try one 15 in a box.

You need to know the recommended cf for the 15's and start from there. As for subs it really depends on your budget and what you want to do with the system and what else you have (mids, highs, crossover, etc). People on this forum can help and provide guidance but you need to have a starting point and know what you want from your system. Remember bigger and louder is not always better. I used to run 2 competion 12"s with a high output amp and at one show I blew the back window apart! Thank god the tint kept the window from becoming a thousnad pieces.
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Old Jan 16, 2007 | 12:09 PM
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From: Sayreville, NJ
Car: 72 Fbird. Want another 3rd gen :(
Engine: Poncho 350
Transmission: Turbo 350
Imo, if i was you.. i would put only one 15.. and tbh wolfenhag would not have been my first choice.. instead of spending the amount you did on 2 of those.. i would have put that money towards one very good 15
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Old Jan 21, 2007 | 04:54 PM
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From: Illinois
Car: 91
Engine: 3.1 v-6
you have enough room to make a box for 2 15's in the hatch it just you wont have any room to put stuff back there i have 2 jl w6 15's in my camaro and they sound awsome so you can do it.
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Old Jan 21, 2007 | 10:45 PM
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From: Sayreville, NJ
Car: 72 Fbird. Want another 3rd gen :(
Engine: Poncho 350
Transmission: Turbo 350
hey woody im curious to see your box.. got any pics? im lookin for a bigger box for my car
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Old Jan 22, 2007 | 04:43 PM
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thanks for the reply guys. in light of everything i sold my 2 15's and decided ill stick with 2 12's. now i would like suggestions on what to get. money isnt an object. just looking to hook up a nice system in a future showcar. thanks.
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Old Jan 22, 2007 | 10:19 PM
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From: Tulsa Oklahoma
Car: 1987 Z28 Camaro
Engine: 350 small-block
I had two solo-baric L5's in single made boxes (one box for each speaker) you can sit both boxes up top right under the window and the amp in the bottum of the hull sort of speak and they sounded awesome. I had one DB 1000 watt amp 2 channel pushing 500 to each speaker and i had some infinite components in the front with tweeters built it. It was loud crisp and very understandable. Those two brands i advice for sure JBL makes great amps too btw. Just make sure you get good sized wires and a capacitor. Infinite imo makes the best component speakers such as your 6x9s and tweets and any other small speaker (that supplys your sounds more then the bumps) and alpine or solo-barics make for great bumping 12 inch subs. Alpine is in the lower end but solo-baric has many great subs. I now have the L7's from solo-baric same amp running them same watts and still awesome bump.
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Old Jan 23, 2007 | 12:12 AM
  #10  
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From: Calgary AB.
Car: 85 Camaro iroc
Engine: 305ci HO
Transmission: T-5
Axle/Gears: 3.73
my bros got a 15" JL and it poundssss
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Old Jan 23, 2007 | 07:40 PM
  #11  
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From: Sayreville, NJ
Car: 72 Fbird. Want another 3rd gen :(
Engine: Poncho 350
Transmission: Turbo 350
camaro_ABN, if money isnt an issue check out these companies.. Resonant Engineering, FI, AA (Ascendant Audio, specifiaclly that Havoc series subs), DD (Digital Designs)... subs by those companies will be very nice.. both sound and build quality
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Old Jan 23, 2007 | 07:54 PM
  #12  
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From: Troy,NY
Car: 1989 camaro rs
Engine: 305 TBI
Transmission: 700r
TheBandit is correct , the names he just listed are some of the best subs on the market for SLP SL
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Old Jan 24, 2007 | 05:57 PM
  #13  
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Car: 89 RS,89 iroc
Engine: 5.0,5.0tpi
Transmission: 700R4,700R4
Axle/Gears: LSD,LSD
ive got a 15" L7.in a ported box..on my back seat lol..it hurts lol
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Old Jan 25, 2007 | 01:58 PM
  #14  
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From: Sayreville, NJ
Car: 72 Fbird. Want another 3rd gen :(
Engine: Poncho 350
Transmission: Turbo 350
l7s get LOUD..yes... but if your willing to spend the money i would go with something that has more SQ.. l7s are not the best with SQ.. well thats waht ive heard
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Old Jan 25, 2007 | 09:51 PM
  #15  
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Car: 89 RS,89 iroc
Engine: 5.0,5.0tpi
Transmission: 700R4,700R4
Axle/Gears: LSD,LSD
very true..very loud.and SQ.yah..the smaller ones like 12's or 10's are decent..there's definately better out there!
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