Interconnects for CAL-10

I'm solicting suggetions for an interconnect to use with a CAL-10 CD player I just purchased here on Audiogon. It is not broken in yet with only about 20 hours on it but I'm noticing that some of the sound especially the mid range and higher bass seems rolled off compared to my old SONY CDP-500. I'd love to know if anyone has experienced the same and what interconnects will open up the sound. Thanks very much. Len