Back in the day, I discovered that my LP12 sounded a lot better with no dust cover. I was in the listening chair when a friend lifted the lid while music was playing. With it on, the music and soundstage sounded literally closed in. So it was a ritual to take it off and slot it back in when finished. Now I never even consider using a cover when playing.
Ok guys
My question is this, nothing major, more of a curiosity. When playing an album does it make a difference if you leave the dust cover up or down? Probably stupid question but hey there are lots of opinions out there