sub box designs - BMW Forum - BimmerWerkz.com
Audio and Electronics The place to go to discuss sound systems and show off your I.C.E. along with security systems and radar detectors too!

 
LinkBack Thread Tools Display Modes
#1 (permalink) Old 07-25-2004, 03:58 PM
2nd Gear Member
 
Join Date: May 2003
Posts: 487
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
CMGO is an unknown quantity at this point
(Thread Starter)
I want to put a sub box in my E36 M3. I only want a 10 inch sub in it, but I have never made a sub box before and wonder if anyone has any tips, designs or templates of any type to share? I plan to seal the interior with silicone and to carpet the exterior to match the trunk. I want it to be very low key, not showy at all. I also want it to be safe from all the crap I usually have flying around in my trunk. It also HAS to be securely mounted as I am lunatic on the road and dont need a box of wood smashing around my trunk.

Thanks to all in advance.

Pete

<img src='http://www.azkphoto.com/choices.jpg' border='0' alt='user posted image' />
05 WRX STi
-04 H2
--98 M3-SOLD &quot; I miss you dearly&quot;
---87 Porsche 944S
----94 Toyota 4x4
-----82 Yamaha XJ750 Maxim
CMGO is offline  
Sponsored Links
Advertisement
 
#2 (permalink) Old 07-25-2004, 05:16 PM
Defector
 
El Presidente's Avatar
 
Join Date: Dec 2002
Location: Long Island
Posts: 5,973
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
El Presidente is an unknown quantity at this point
Send a message via AIM to El Presidente
I've become quite adept at building boxes. I'm on my second for my car, and have done a few others

Use 3/4" MDF.

The base should be no wider than 33" or shorter than 32". 16" tall is good. The wider you make it, the more presice it will fit, but it will also be harder to get in position. Don't worry about bolting it down. I've never had to and they've never slid on me.

Use GE Clear Silicon Sealant/Adhesive II.

Former box:



Current Box:



The slope of the backseat is 27 degress.

<span style='color:gray'><span style='font-family:Courier'>1995 e36 3 Series RIP
1999 e46 3 Series BURN IN HELL
2000 MR-S Roadster= Current</span></span>
El Presidente is offline  
#3 (permalink) Old 07-25-2004, 11:00 PM
Threadkiller
 
bitcore's Avatar
 
Join Date: Jan 2004
Location: High Point, NC
Posts: 2,907
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
bitcore will become famous soon enough bitcore will become famous soon enough
Lol, nice boxes pres, how about this? (15", 5L of xmax displacement) I would use liquid nails instead for bonding, and silicon adheasive\caulk to cover the inside joints to ensure a good air seal.

This beast is so loud, it rattles the frame of the house. I'd be scared to port or even PR this beast...


bitcore is offline  
#4 (permalink) Old 07-25-2004, 11:04 PM
Defector
 
El Presidente's Avatar
 
Join Date: Dec 2002
Location: Long Island
Posts: 5,973
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
El Presidente is an unknown quantity at this point
Send a message via AIM to El Presidente
The first box used liquid nails. Over time, it cracks, and I had to go back and reseal with the GE silicon.

I also use 1 1/4" wood screws to hold the box together. The adhesive helps form a tighter seal and hold it in place while drilling pilot holes.

<span style='color:gray'><span style='font-family:Courier'>1995 e36 3 Series RIP
1999 e46 3 Series BURN IN HELL
2000 MR-S Roadster= Current</span></span>
El Presidente is offline  
#5 (permalink) Old 07-26-2004, 12:50 AM
Live Fast. Drive Faster.
 
buuhh99's Avatar
 
Join Date: Feb 2004
Location: Minneapolis, Minnesota
Posts: 3,251
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
buuhh99 has a reputation beyond repute buuhh99 has a reputation beyond repute buuhh99 has a reputation beyond repute buuhh99 has a reputation beyond repute buuhh99 has a reputation beyond repute buuhh99 has a reputation beyond repute buuhh99 has a reputation beyond repute buuhh99 has a reputation beyond repute buuhh99 has a reputation beyond repute buuhh99 has a reputation beyond repute buuhh99 has a reputation beyond repute
Send a message via AIM to buuhh99
how hard is it to use plexy glass in the install like part of the box



buuhh99 is offline  
#6 (permalink) Old 07-26-2004, 02:21 AM
Threadkiller
 
bitcore's Avatar
 
Join Date: Jan 2004
Location: High Point, NC
Posts: 2,907
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
bitcore will become famous soon enough bitcore will become famous soon enough
Don't use plexi unless you have some HARDCORE 1" thick stuff. (or much thicker, depending on the surface ara) Lexan's bad too, It's purpouse is to not break, but it still flexes.
Plexi & lexan flexe a whole bunch, and SIGNIFICANTLY lowers your potential SPL and SQ.
See-through sub boxes are for show, not preformance. If you just had to do it, I'd use what they make aquarium "glass" out of, I want to say it's acrylic... but whatever it is, it's damn think, and dosn't look flexable at all to me. Considering the surface area these huge pieces have, a much smaller piece wouldn't have to be that think.

(aquarium glass, as in - the huge WALLS of "glass" with dolphins and whales in the tanks...)


bitcore is offline  
#7 (permalink) Old 07-26-2004, 11:17 AM
Defector
 
El Presidente's Avatar
 
Join Date: Dec 2002
Location: Long Island
Posts: 5,973
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
El Presidente is an unknown quantity at this point
Send a message via AIM to El Presidente
Very true. Stay away form plexi unless all you want to do is show off. I just went to a car show and they had some serious systems there, and non used plexi.

That said, its very easier to work with. you just need a long drillbit.

<span style='color:gray'><span style='font-family:Courier'>1995 e36 3 Series RIP
1999 e46 3 Series BURN IN HELL
2000 MR-S Roadster= Current</span></span>
El Presidente is offline  
Sponsored Links
Advertisement
 
Reply

  BMW Forum - BimmerWerkz.com > General Category > Audio and Electronics


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
User Tag List

Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode



Similar Threads
Thread Thread Starter Forum Replies Last Post
E36 m3 sagging glovebox. Fixed. Mostly. 4evrwyntr 3-Series (E36) 9 09-12-2005 12:36 AM
AIR BOX DEBAFFLE *help please* White e36 dude 3-Series (E36) 6 09-10-2005 04:17 PM
Opinion of new designs vger 3-Series (E46, E90) 1 05-16-2004 01:01 PM

Posting Rules  
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome