Does Storage Damage Equipmnt?

That depends on whether it is a climate-controlled site or not. I would not think a couple months in storage would bother it if it’s inside, even if it’s not temperature controlled. You are probably hearing the difference between the rooms. 

Well it depends. As long as your speakers were not subject to extremes in  heat or humidity then probably not, 

@glennewdick 

The room and setup play a huge role in how your system sounds... It is really likely this is it. To get a system to sound its best it generally takes months of careful tweaking... the positioning and treating the room. Also, there is some "re-breakin" required after moving stuff. 

Are the photos under Virtual System, you new place or old one? If these are of your new place, then it is easy to see room / system needs lots of work. 

Fully agree with two above. Been through the same scenario as OP, it was the room.

Can you describe physical layout of previous and current room environments ... that's the low-hanging fruit?

prior room 9x12 ft 8ft ceiling carpeted floor w/ system centered along long wall

current room 8x12 8ft ceiling hard floor w/ system centered along short wall

current system is as shown in profile

@bernadie5317 ”….has my system been damaged….?
 

Maybe your system was abducted by alien forces and genetically altered before return?

Great. As a starting place, cover the floor with a thick carpet in front of and back at least to the listening area. If you could photograph what is on the sides and in back, that would also be helpful. 

You will need corner bass traps. To simulate this you can pile couch cushions and dense pillows in the corners. Also, I see the acoustic panels. You might try covering it all with an absorbent thick wall hanging. 

Corner traps for the upper corners (these are cheap)... little triangular pillows. 

Have you experimented with toe-in yet?

I would not anticipate any humidity or temperature related damage in a typical storage facility after just a few months.  

Yes room is important some dsp can sound out the rooms and find the frequency problems.but letting equipment sit is like breaking in new equipment cardas has a great article on cables even if moved need more breakin time. Look at thier web site.also other articles have said same things.the compliance of speakers tighten up around the surrounds if not used and stored. Enjoy the science and the music.

If current system photo is the state of your system's room, then please consider some dampening behind/beside speakers, Speaker toe-in, and floor covering. In other words refection treatment(s).  Not expensive relative to other bits. Mr. Gorbachev take down that plywood.

If door doesn't swing into room moving L speaker move more to left should help too.

@mylogic

or perhaps i was . i am a believer . but this is not that forum . i wonder what kind of music they listen to . their systems are no doubt superb . maybe we can learn a thing or two re/ room treatment from them  .👽

@wsrrsw

Mr. Gorbachev take down that plywood.

behind it is a wide open closet . REL support recommended the closet opening be closed . 

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 .