Thank you for the links!
I had found the manufacturer through Google, but not the suppliers for some reason.
Now we have three different options of mineral wool in this thread ranging from about $10 a sheet to close to $20 a sheet. It seems to be comparable. Does anyone have a solid reason, other than being cheap which I already have figured out,
to use one over another of these?
If there is a real reason I am not going to skimp a few dollars here on a set of speakers I hope to have for quite a while. But I don't want to fall for the "Monster" of mineral wools either!
Jason