Back in the day, I had Sony, Teac and Revox reel to reel recorders and I bought many pre recorded tapes. One of my favorites was Abraxas by Santana. When new, it sounded amazing! But after more than a few plays, you could hear the hiss increase and as the hiss increased, the high end started to disappear and sadly, the tape started to sound like mud with tape hiss.
