I was in 2 minds about how to connect this 1990s CD player to my much more modern amp.

The CD Player has digital out which means I could use the (probably) much better DAC on the amp.

Or I could not do that and hear the CD player as I used to hear it back in the 90's

I have tried both. My head says go digital out and my heart says keep it as it was, use the RCA line out.

I guess music is for the soul and not for the head, so old ways it is.