I've seen some pretty cool sub enclosures with some plexi fronts etc. But the more I read, the more I am discouraged that it may affect sound quality. Any opinions to that? I am just considering installing a 14" x 16" plexi window to the back of my sub. I can only find 1/2" plexi in my area too which I've heard should use 3/4... The reason I'm considering the plexi window is because I don't want my sub to face out to the feet, so thought maybe a window to the back of the sub might look kinda cool
I personally don't like a foam seal because you have seams in the corners. For that reason I prefer a silicone gasket. When silicone begins to gel/cure it loses its adhesive qualities. So you have to be both precise and quick about it.
The other major issue is that you are typically pre-drilling and screwing into the end of MDF which doesn't have near the strength and splits easily. Spacing is important. Close spacing would suggest a good seal. Too close together promotes splitting the MDF. Practice on a throw-away piece first. Once you pre-drill the pilot holes make sure you resin seal up the end/edge of the MDF. It's more porous so it will consume a couple of applications.
WD 40 seemed to work. No hazing so far. taking longer than I thought trying to do one step in between all my kids sports stuff. Question for you David, or anyone else if you know...good option for connecting the speaker wire through the box? I have the plexi window so not sure I just want a drilled hole with silicone or the terminal cups are kinda ugly from the inside...