Curious, just how bad is the garage environment there? In my workshop (converted garage but no weatherproofing) I just leave my avr, subs, speakers there year round. None are indoor/outdoor models (I do have some outdoor speakers I leave outside on the deck). We don't get too much freezing weather here, altho its been in the 30s each night lately....nor blistering/humid summers, but we still get temperatures in excess of 100F.....humidity we've got year round to an extent.....