I prefer not to deal with some controversial posts on this thread.
@OP, your question is
IMHO, you should not take a hasty decision. If I were you, I'd:
1. Let the CDP burn in for at least 50 hours.
2. Try various permutations and combinations.
3. Try with other equipments (read amps, especially Stereo Amps)
Then decide. I'm saying this because, what you have observed appears to be highly unusual.
@OP, your question is
Should I sell my 2-day old Marantz CD5004?
IMHO, you should not take a hasty decision. If I were you, I'd:
1. Let the CDP burn in for at least 50 hours.
2. Try various permutations and combinations.
3. Try with other equipments (read amps, especially Stereo Amps)
Then decide. I'm saying this because, what you have observed appears to be highly unusual.