geoffkait:
"I kind of doubt light curtains will cut the mustard, has anyone actually seem the frequency spectrum of vibration that large glass windows and sliding doors produce? I suspect it’s wider and lower than most think. Light curtains probably fall into the category, forced solution"
Wrong, at least at my house. I invite you over to listen for yourself, with and without the curtains. Everyones listening room is different, you made a big generalization.