From: bjfish11 - enclosure material question

[///M5 2,833]

Sorry to come across that way. It wasn't my intent. It's just that I read dozens of your posts here.

I ask questions so people can get answers, most are predecided and want someone to just reiterate what they like even if it is the wrong answer. I won't do that.

What about the 15mm Trupan that BJ will use for the project?

Exactly why I rounded down to 10lbs or 66% of the weight of MDF. It won't be quite that light though.

The internal volume is per ID's specs. Having built and listened to other ID subs in similarly advised boxes, I'm not doubting the choice.

.9 came from ID direct:

http://www.imagedynamicsusa.com/manuals/iD/ID8D2%20V.pdf

.35-.45 is recommended. I used the lower of the two and then added the volume of the two drivers which gets us to .8-.9. I did read that you said .6, but again you ask to have a nice sounding system and for that it means the sub is supposed to play the lows. Putting two of them in that small box won't help with that.

Sorry, is this enclosure for your car? If you don't mind, please allow me to use my own judgment referenced by ~10 years of competitive seat time and ~20 years auo-x'ing. I wasn't born yesterday.

As I said, no need to discuss this in this thread, you did say that for autocrossing you'd take it out anyways. In the street 10lbs is meaningless. Not worth it here though as I don't care, I really just want to help with your actual goals. Let's just ignore this portion for now and try to understand how we can put together a light solution for you.