That reminds me of an Experience I had once at a former colleague. He was a bit of an audiophile, dj/producer and had e.g. added more insulation to his living room to not annoy the neighbours as much, and built his own speakers and record player.

Anyway, something was playing, it was (sounded?) really quiet but it was crystal clear at the same time; normally I feel like I have to turn the volume up to hear the whole music.