If I go for a nature hike, I prefer not to bring music along. I'd rather listen to the sounds of nature and have a relatively silent background. Frankly, I'd much rather listen to the birds singing

than have humankind's music cluttering my experience.

After the hike I can go back to my mancave and immerse myself in music and tinker with my system. I'm sure, with many, this tweaking and tinkering is much of the pleasure of this hobby.
There was a famous performance, for prepared piano, of John Cage in which after being introduced, there a long pause then he enters the room and sits down at the piano for awhile and plays nothing. He then gets up and leaves. End of Performance.

In the interval when the audience was waiting for him to play you could probably hear a pin drop. I imagine that other sounds were coming into attention.
I think what he was trying to say was that there is noise and music all around us that we don't hear because we're so distracted by modern life. When you go out and always have MP3s and earbud and your Bluetooth in place that you isolate yourself from the rich sounds of everyday life.
Much music is emotional and you don't need super detail and close to live performance quality to elicit this response. However there are other perhaps more intellectual pleasures available which an excellent rig will make more accessible. Some music actually requires undisturbed attention.
--Roy