Sound room humidity

Wow 55% seems high folks? I guess it depends on where one lives. 

At 55%, the air becomes too thick and deadens the sound a bit in my experience. 40% is ideal in my house of stereo and I never have any static pops on my vinyl rig.

It probably varies to some extent with climate.  56% is my number in South Florida.  This is semi-tropical.  40% would not be practical here.  The air is thick here in more ways than one.  Consider the musings of our President and Mr. DeSantis.  ;-)

No. Humidity is not really an issue unless it becomes extreme. Here in Florida with the house always closed and the AC system always set to dehumidify we are lucky to get under 60% RH. I see the same concern on camera forums where people are buying dry cabinets just because they bought a new camera and are new to the hobby. Same for stereo stuff. I'm still using gear from the 1980s as are most of my friends who are into audio. Just not an issue unless you are above about 75% regularly and that also becomes an issue for structures :-) 

Personally I find 55% feels too humid.  I'd keep it at 50% here year round if I could.  :)