As for the 100 hrs of breakin, does music actually have to be playing, or is leaving the equipment on enough?
The AC current drawn by a preamp will be essentially the same regardless of whether or not music is being played, as long as the preamp is in an operational mode as opposed to a standby mode. The AC current drawn by a CDP will increase somewhat when the transport is spinning a disc, but almost certainly by an amount that is too small to matter, IMO.
So assuming that the fuses you replaced in those components are AC mains fuses there should be no need to play music to break them in.
Regards,
-- Al