MCD600 Sound issue. About 3-month-old unit. Recently started, for couple of minutes very faint sound, then as it warms up after a minute or so some crackle (sometimes) then back to normal.
Source could be CD or Optical.
Output can be fixed or variable XLR or RCA.
As though there is a tube in the output stage! Crackle and warm – so tube like!
Once going, sounds normal.
Can be reproduced every time after couple of hours of power off rest.