tzh21y:
Excellent initial description of a Synergistic Research Black fuse sonic change. The fuse needs about 100 to 200 hours to fully settle in. However in My Marantz I heard positive trends at 24 hours of playing time. Then a gradual more relaxed and open sound.
I was very happy at the end of two weeks.
We are fortunate that the Marantz SA11-S2 SACD player has a replaceable power fuse. The SA11-S1 has a non replaceable fuse.
Congratulations on getting the player's lid off - it is a challenge to remove.
David Pritchard