Bimmer:
It's fun going through this collection of music dating mainly from the 60's through the early 90's.
I'm only on the first layer in the box with two more to go.
DeKay
32 pairs of speaker and RCA cables measured and listened to
I am not sure if this has been posted here before, but this is pretty interesting.
These guys measured and (blind) listened to, 32 pairs of RCA cables and speaker cables. And found both measurable and audible differences.