Why don't you just make it wider like Essams box (11"). He did mention this design still has room to be larger if you want a tight fit.

i used a 10 with this design and had no problem... when we received the sub, we used the cutout which holds it in place as a guide to cut. Centered on mdf panel and it fit perfectly.

Sleepless, did you ever do this project?

I still havent made up my mind, me and my wife are expecting our 3rd born this summer and im torn between trading in my e53 and get an e70(w/ 3rd row seats) or e53 + Sienna(easy access)? if we keep the e53, i have a lot of mods on the line: custom sub, decorative skid plate, LED license plate lights, carbon fiber door trims...

Hi sleepless,

I designed it with slight allowances on the sides (outside of the box vs inside the X5 compartment), so, technically, if you want to put a 10" sub in, you might be able to increase the width slightly and it should work. The only concern would be to obviously use a shallow mount sub (I had originally looked at the Alpine 1043D - 4.3" depth), but moreso than that is to make sure it will be ok in a small volume box (about 0.35cu.ft.). I designed it with the Infinity Reference 8" sub (REF850W) which sounds great in a small enclosure that size.

I believe you wanted to know about the 1" lip at the back - honestly it was there because in my X5, theres a bit of a metal lip seperating the two compartments, so this was there to stabilize the whole box. So, interpret it however you want (you can place it anywhere under there) - make sure you cross reference my measurements with your X5 (every one is going to have variations on their interior dims) to confirm that it all works...

And please post pics of your finished box!!

thanks for the interest...

:)
dib.

mikerx5 - please post pics of your box- it'll be great to see how it worked out for you..! And that goes for anyone else who used my guideline...
i'm excited to see the end products!! :thumbup:

i'll take pictures over the weekend - may be too loazy to remove it though because it has been secured in there as well. thanks so much.... did you do anything about removing part of the hatch cover to allow the sound to travel more freely. Seems to sound a bit better with the cover off.

Hey Dib - i just ordered from my favorite Sub company (Elemental Designs) and asked them to make your box.. hope that's OK.. LOL. They are sending me a draft soon if anyone is interested.

I'm getting the amp and a 10" sub from them too. :-D

If anyone is interested let me know.

Mr EVP :D, how much for just the box from ED?

i already have the sub, like Essam's (i believe its Alpine), but just cant find the time to even try doing my own box...

It will take a few weeks for them to build the first one they said. PM Sent.

that's great - hope it works out for you..!

Sadly, I haven't even had a chance to make my own design for my x. Just finished with the deck (Alpine w505) and speakers (Alpine components all around). Also put 4.8is aftermarket wheels on (staggered 20's) and ran out of money (and time!!). Just using a simple 8" box with my infinity reference and an mtx mono amp - with the deck and new speakers, it sounds incredible. Can't wait to finish off the look with the custom box...

soon I'm sure - I'm getting anxious... :)

I have to live through the rest of you for now, so please make sure you post pics of your finished products!

cheers...