air flow through plexi window

I second the motion. I find that restricting more than 70% of the combined surface areas of the cones tend to make a slight restriction on the woofers. SLIGHT, but in some cases it is enough to affect the sound.

I'm not concerned about the window size, but if you must put something there, I would look at doing a floating logo rather than a pane of a window. Your other option would be to cut out the back area and put a recessed wall there to give more area for hte air to move out and make your club logo as large as possible for the window. The key here is to give as much space as possible for air to move with as little restriction as possible.

Ganbatte ne!

first off, the enclosure looks great!

I agree with gus and mrs.racer! do floating plexy instead. You could also think about placing some LED's in the 1/2" pocket you cut for the glass and have it light up the plexi. Just a thought.

In your opening you can restrict up to 85 square inches and still be fine for most subs...Some subs may still be affected, so be aware of that during the rest of your install. Shape doesn't matter for the most part, but large planes and/or small holes will act as a slight restricter, so any holes smaller than 1.5 in2, I would consider as a "blocked" area.

Assuming your surface area is correct and going with a typical xmax for 10s, you need to keep about 150 square inches available in the window to minimize restrictions, any more than that, and you'll have the beginnings of a bandpass... not a large effect, but still an affect.

Ganbatte ne!

thanks. once I finish the build I'll post a thread here on it from start to finish. I lack glassing the outside, body filler and paint (if it turns out worthy enough for paint that is... lol) if not, I'll cover it in matching suede or vinyl.