Depends on how old. I had an old Theta 18 bit that was great in it's day but can't stand up at all to a new mid-level cd player with 24 bit (music hall or cabridge). The new ones are definitely clearer. Also got rid of my CAL Alpha once I got my MH modded.
Old verss new Dacs
What are the virtues of a new dac like a benchmark versus an older high quality one like a krell studio or studio 2? I really like the look and feel (in addition to sound) of the krell stuff but wonder if I am missing out using a krell studio 2 dac rather than a newer one. Thanks for any thoughts.