Does Storage Damage Equipmnt?

It looks like you haven't quite settled in to your new place yet. Walk around the audio room while clapping your hands. If you hear and echo from the hand claps, as I suspect you will, your room is too lively as is and will need some dampening and/or room treatments. Start with simply covering the floor and windows with carpets and drapes and go from there. Good luck!

Damage?  Not likely.  Well, excess humidity, and heat can damage something but not in a subtle way.  Usually this evidences by loss of functions, cracking or popping sounds or total loss of bass or treble, scratchy volume controls, etc. 

Otherwise, the room, power and Class D amps may be the culprits.  Nothing wrong with Class D, but some take 3-4 days to warm up after being powered off for any length of time.  

In your case I suspect the issue is more ot do with rotating the system around without significant room treatment on the side walls. 

+1 address the room.  Taking measurements greatly helps to target specific frequency solutions - best not to overuse absorbers/diffusers.

Maybe move/adjust speaker positioning including toe-in.  

for your inspection i have updated Profile page w/ photo of room w/ system at prior residence where the sound quality struck me as superb . also upon inspection of several systems of apparent great quality of other users here i have discerned no room treatments but have noticed carpeting seems common which my current room does not have but prior room does as stated prior .