I need an Iso Baric Push Pull bandpass Box, help?

Systems

well, I use to have two polk momo 12's In an iso push pull bandpass configuration and it was seriously LOUD and AWESOME!! But of course, someone wanted it more than I apparently did so now I am stuck rebuilding my system. Currently I have all polk audio DB speakers im my car but couldnt afford the woofers. As if turns out someone gave me two MTX 8" woofers in a box, the problem is they are not punchy enough!! So I would like to fool around with them and make an iso baric bandpass box... Would anybody be able to help me out with the plans?

This is a link to the woofer PDF file:
http://www.mtxaudio.com/caraudio/products/manualsQuickInstall/subs/T684A.pdf

Thanks in advance!!!!

neomagus00

http://www.linearteam.dk/default.aspx?pageid=winisdpro

http://home20.inet.tele.dk/kou/ubdwnld.html

The first is WinISD Pro, an excellent program. If you choose to use it, be aware that it is very versatile and very powerful, but that it comes with a learning curve roughly equivalent to Mount Everest. Read the manual, look around, and have fun.

The second is a much more intuitive program called UniBox, and it will provide good information, though with less detail. Its learning curve, assuming you know a bit about the technical side of box-building, is pretty shallow - perhaps the Appalachian foothills in comparison.

Neither will give you a box design, but they will give you the appropriate NET internal volumes... be very sure to follow these volumes when you've finalised your design, as bandpass boxes are very alignment-sensitive. That means, make sure you calculate the port volumes correctly and add them into the total volume for a given chamber. Ditto for the driver.

Systems

wow, I didnt realize you had to add the port to the total volume, I thought that was seperate. Thanks! I will get those programs!

neomagus00

yep, the speaker itself makes a difference in bandpass boxes, too... and why is your handle 'jesus'?