I advocate for systems that are low powered, inefficient electricity wise but at least give you the joys of listening to it at low to moderate volumes, flee powered tubed+single fullrange driver type. Why? With these gigawatt ultra high powered Class D amps that are so common now, it is much, much easier to crank up the volume without realizing....causing irreversible damage.
Furthermore, watch out for in the car stereo. Sometimes I find myself cranking a track I like when I am driving, maybe the rush of the pedal, cylinders cranking and the like take over my best judgment.
Sometimes, the best sound I hear is simple ambient noise that is produced when NOTHING is playing and it late at night. That noise is extremely therapeutic as well as being non damaging. Appreciate the moment without attempting to put a soundtrack to it, as Apple advocates with their Ipod commercials.
I think that it is inevitable to hear some low level noise that memory produces when we have some insomnia. They can sound like whizzing and infrasonic sound that is low level, but when you fall asleep, it is gone.
I once read and article of several hundred people around the world who are so sensitive to sound that they could hear things that the audiologist could not really find anything "wrong" with their ears. Of course, that might simply mean that medicine and science has yet to reach the level of fixing neural+aural contacts that have out of whack.
In any measure, take care of your hearing and do not waste it in garbage recording or badly distorted music.