I just installed a new clock circuit in my CD player, the very popular Kwak-Clock-7 designed by and freely available from Elso Kwak. I'm using it in my Denon DCD-1520 with no other significant modification. This circuit cost maybe $20 to build. I noticed that my system sounds different now. Sounds a little "calmer." Probably an improvement, but I'm not sure yet. I think I'll recommend trying it out anyway. Has anyone else tried this sort of tweak? What do you think of it? Heck, any suggestions for mounting this thing in my chassis? This plastic bag method is less than comforting.