Does altitude change the sound of speakers??

Is the feel good factor, a plus or a minus with the sound effect at altitude? Better or worse?, Or just less, work to get there? Just wondering..

So if can’t hear a fart in space, can you smell one, or does that go hand in hand. Bet you can’t smell just one? LOL

Regrets, probably...

Regards, maybe...

Forward men, but never straight............. forward... Onward!

I like D_S answer.. hee hee.

The air is thinner, thing are bound to be a little faster and with less pressure on the old ear drum, ay? But give it a little time, just like you for the altitude change.. Interesting though.. Humidity is right in there with SQ to...It all plays into "The sound", ay?

Would it actually be a lower spl with the same watts or not? I gotta think on that one a bit. $ for $ would you get the same SPL at sea level as one, two, or what about 4 miles up. Everest? Can you hear anything up there. 
With no air, no pressure, little air, little pressure, Right?

Regards