School Project

Printed From: the12volt.com
Forum Name: Car Audio
Forum Discription: Car Stereos, Amplifiers, Crossovers, Processors, Speakers, Subwoofers, etc.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=10820
Printed Date: July 26, 2025 at 2:13 AM

Topic: School Project

Posted By: woody453
Subject: School Project
Date Posted: March 12, 2003 at 7:14 PM

for a school project i want to design and make a box to hold a 12" sub and a few neon lights....... the sub as 400w my amp is 150w per channel... i want to bridge the rear cahnnels to get 300w..... what is the best enclosure to build, large, small, clossed, or ported... the box will be going in the boot/trunk of my car if someone.. could help please that would be helpfull posted_image

Replies:

Posted By: bberman1
Date Posted: March 12, 2003 at 7:28 PM

need some more info. what is the make and model of the sub and amp?

Posted By: woody453
Date Posted: March 12, 2003 at 7:33 PM

ummm it is a kenwood tornado 12" sub and i am not sure of the amp, i think it is a american solution or somthing, it is like a no name one..... i hope that helps....

Posted By: bberman1
Date Posted: March 12, 2003 at 7:44 PM

Is this the sub you have https://cgi.ebay.com/dll?ViewItem&item=3011786906&category=18803

Posted By: woody453
Date Posted: March 12, 2003 at 7:48 PM

yeah, not that powerfull though..... only 400 or so wat

Posted By: bberman1
Date Posted: March 12, 2003 at 7:52 PM

is it this one 600 watts https://cgi.ebay.com/dll?ViewItem&item=3011782194&category=18803

Posted By: bberman1
Date Posted: March 12, 2003 at 7:58 PM

I believe this is the sub you have https://www.crutchfield.com/cgi-bin/S-EkgsUlyZXfG/ProdView.asp?i=113W3003&s=0 I would suggest you go with a sealed enclosure with a volume of 1.5 cu/ft. Now you said that you wanted to add neon lights. Do you want them to be inside the enclosure and add a Plexiglas window? Or do you plan on putting the lights outside the box in the boot?

Posted By: Vincent454
Date Posted: March 12, 2003 at 11:42 PM

I did my science fair on the resultant sound pressure level of sealed, ported, and bandpass enclosures. I had them all built and I began testing the sub (MTX 6000) in the bandpass. I wasn't use to the way bandpass enclosures muffle any distortion or overpowering, so I blew the sub. So, all the enclosures went to waste since I had to use a different sub.

Posted By: woody453
Date Posted: March 14, 2003 at 12:19 AM

bberman1 wrote:

I believe this is the sub you have https://www.crutchfield.com/cgi-bin/S-EkgsUlyZXfG/ProdView.asp?i=113W3003&s=0 I would suggest you go with a sealed enclosure with a volume of 1.5 cu/ft. Now you said that you wanted to add neon lights. Do you want them to be inside the enclosure and add a Plexiglas window? Or do you plan on putting the lights outside the box in the boot?

yeah that is the one,, and the neons are going on the outside

Posted By: bberman1
Date Posted: March 14, 2003 at 8:27 AM

well then just build a sealed enclosure with a volume of 1.5 cu/ft. you can use the 12volts volume calculator to figure out the dimensions of your enclosure https://www.the12volt.com/caraudio/boxcalcs.asp#rec As far as bridging the sub goes don’t know the specs on your amp. But the sub is 4 ohms so you should not have a problem bridging it and you should wire it in parallel. If you have any more questions just post them