Axiom Home Page Forums General Discussion The Water Cooler Dumb car audio question

Has anyone every used the program WinISD for calculating box sizes based off of all of the specifics on the actual sub speaker that you are using?

It told me that the "optimal" size for the 10" that I am getting is:
Width 17.126"
Height 26.575"
Depth 10.866"

But that is like 2.862 cubic feet; more than TWICE what the maximum recommended box volume from the manufacturer is. I was told that it was a really good program, but the data doesn't seem valid.

Man, that's gonna take up your whole trunk!

Yeah, that is why I am thinking that their program is wrong...

What driver are you going to be using? You can use a smaller than optimal box and then use polyfill to make the driver think the box is larger than it really is. I did this with the dual 12s I have in my S10.

I purchased my box and amp rack from subthump .They have a good FAQ you may want to read. They are a small outfit and may be able to reccomend a proven combination for your needs.

Are you sure the units aren't centimeters?

Yeah, the program gave me:
Width: 0.435m
Height: 0.675m
Depth: 0.276m

I converted those to inches, and then dropped those numbers into a sub box volume calculator to get the cubic feet.

OK. So I got out my MDF and cut it into the size I wanted, but I didn't glue it up last night as it was getting late. Anyway, a guy I work with, who always has an opinion on everything, right or wrong (many times wrong), but he said something that got me thinking.

Where to install the amp? He was telling me that I could mount the amp right on to the sub enclosure to save some space.

Now I know that the really cool professional installs like to show everything off, but that is not what I am doing. I just want it to work.

Is there any reason that I couldn't or shouldn't put the amp right on the sub enclosure? Would vibration or heat be an issue?
If I put rubber washers under the mounting feet to raise it a little for air flow and vibration dampening would that be enough?

Thanks.

I've seen it done and it apparently didn't hurt the amp at all. The only thing I would be a little worried about is the ease of a would be thief to easily take the sub and amp in one easy swoop.

Yeah, but remember, I am driving a 1999 Ford Contour SE Sport... Woohoo. The coolest car ever! While it is "fun" to drive, it isn't the first place someone would look to snag a sub.

Seriously though Rick, thanks for the concern and the valid point...