Yahoo Answers is shutting down on 4 May 2021 (Eastern Time) and the Yahoo Answers website is now in read-only mode. There will be no changes to other Yahoo properties or services, or your Yahoo account. You can find more information about the Yahoo Answers shutdown and how to download your data on this help page.

Ben S
Ben S asked in Cars & TransportationCar Audio · 1 decade ago

Looking to modify and build an MTX designed enclosure?

I have an incredibly small boot in my 95 lancer coupe, well relatively small compared to the drivers i'm running in there. Right now i have two 12" MTX 8500 dual voice coil subs in a dual sealed enclosure box (the two subs are separated by an airtight baffle in the box). The box have been made to MTX's specs and barely fits in the boot of my car. In fact i have to put in in 3 stages. first the box, then the front baffle then the two subs...a painstaking process that i have carried out countless times.

Now it's been a while since i have had my subs running as my car was off the road for about 6 months and during that time i took it all out and tried to sell them. with no luck...simply because i couldn't let them go. now the car is on the road and i've got some motivation from buying a new pair of splits to throw everything back in again. But i'm wanting to build the ported box design that MTX recommends. this is all well and good but there is no way that it will fit in the boot. what i was thinking is to invert the cone so it is facing out so it doesn't take up air volume and in turn making the dimensions of the box smaller (it's the width and height of the box i'm concerned with. not the depth.) i'm wondering how this would affect the design of the port and what measurements i should change to achieve the same results as the recommended box would have.

Cheers

Ben.

the link to my subs tech data reports are on this page http://www.mtx.com/caraudio/products/subwoofers/t8... it's the T8512-44 link.

Update:

sorry jeffnjess4 i didn't specify that i was going to build a completely new box with them being inverted. i'm looking to modify the recommended measurements for a ported box not the box itself. I'm actually happy about my MTX's performance and i wont be rich enough to be selling up and buying a new set any time soon lol. and as for the isobaric idea i like making as much noise with the power i have. which isn't much. thanks for your suggestions anyway, keep 'em coming!

Update 2:

and 9Jeep9 do you know of any user friendly box building programs designed for mac? I've never used one before and wouldn't know where to start.

2 Answers

Relevance
  • jeffnjess4
    Lv 6
    1 decade ago
    Favourite answer

    flipping the speaker around isnt going to give you the extra internal volume needed for a vented enclosure. and ya havent even subtracted for the vent itself yet. what ya could do is put those subs in a isobarick configuration and you would have all sorts of extra cabinet space to go vented but it wouldnt be as efficient as 2 woofers in vented enclosures.but it would be tight. i personally am not a fan of mtx. most of their speakers are designed for sealed enclosures.and actually my buddy has those same speakers and i ran em through my program and they didnt model well in a vented alignment. he didnt listen and bought a vented enclosure( first mistake buying a one size fits all box) and second mistake not listening to me a second time. mounted em listened for 2 minutes and put it on craigslist.and no matter what size box i modeled em in for sealed, they hung around a q of 9 which in my opinion is way too high. they dont go very low either. i hooked up my jl audio 10w3 and while it wasnt as loud, it went lower and was a heck of alot cleaner.

  • ?
    1 decade ago

    i would suggest finding a box builder website it will allow you to make the best box you can fit and tune your port to your personal frequency choice.

Still have questions? Get answers by asking now.