Could this be one reason tubes (and perhaps records) sound better?

Probably should move this comment to another thread but not sure where. I had the same experience as kijanki states above. Relative newbie, I just bought my first external DAC, an old Berkeley Alpha DAC Series 1. My immediate impression wasn't what I heard but what I didn't hear. I was playing chamber music and I distinctly detected the silence spatially between the seated musicians. Don't know how or why, but I definitely noticed it.