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dual 10 with solo 15 box design


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fishku7 
Member - Posts: 3
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Joined: February 07, 2012
Location: Michigan, United States
Posted: February 07, 2012 at 10:36 AM / IP Logged  
I wanted to get an opinion on how I should go about putting two 10" Boston Acoustic G1's and a single 15" Selenium Tornado into my 2000 Oldsmobile Alero. I have looked all over to even find a picture of someone who has done this but haven't found anything. I planned to seal the 15" and port the 10"s. Trunk space was limited before I acquired the 15" sub with two 10" in a ported box. Now I was hoping to build a box to house all three subs plus mount three amplifiers (400W-cab speakers, 1000W-two 10", and a 2500W-one 15") without sacrificing the entire trunk.    
I know this will pull too much power so I'm already planning on getting a new alternator, a second battery, and miles of cable.
This seems like a bigger job even though I have built three boxes of my own. Attached is the CATIA model I made for reference.
Any tips or "DON'T DO THAT!'s" are appreciated, thanks.
dual 10 with solo 15 box design -- posted image.
Le Fish
DYohn 
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Joined: April 22, 2003
Location: Arizona, United States
Posted: February 07, 2012 at 5:49 PM / IP Logged  

What are your planned crossover frequencies and what port tuning are you using?

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jmelton86 
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Joined: February 07, 2007
Location: South Carolina, United States
Posted: February 08, 2012 at 10:09 AM / IP Logged  

Don't do that!

LoL

2013 Kia Rio -90a alternator
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fishku7 
Member - Posts: 3
Member spacespace
Joined: February 07, 2012
Location: Michigan, United States
Posted: February 09, 2012 at 8:38 AM / IP Logged  
The ports are each 3" in diameter and 12" long. That should give me a tuning frequency of 25-30Hz if I'm not mistaken (sub rated for 24-350). Should I shorten up that port to cover a frequency of 100-200Hz and cut down the box volume? And I want the 10" subs to deliver the higher end bass and the 15" to cover the low end bass. The problem that I currently have with the high end bass is that it creates an annoying vibration and buzz in my car and I have been too cheap to dynomat.
Le Fish
mclovin2012 
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Joined: February 09, 2012
Location: Florida, United States
Posted: February 09, 2012 at 10:57 PM / IP Logged  
Gotta be very careful with subs in different sizes like that.  May run into cancellation problems.  I would think it'd be an even bigger problem if you're porting.  Frequencies will be too close together.  With 8s it might not be as bad, but the math is too much for my brain at midnight...
Mike
fishku7 
Member - Posts: 3
Member spacespace
Joined: February 07, 2012
Location: Michigan, United States
Posted: February 15, 2012 at 7:59 AM / IP Logged  
dual 10 with solo 15 box design -- posted image.
dual 10 with solo 15 box design -- posted image.
A new idea that came from a friend.
Le Fish

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