I assume that the Meridian 568 is your DAC. If it has an AES/EBU input, I would use a CAL Delta from the Delta's AES/EBU output. Theoretically this is better than using the RCA outputs from the Icon or the DX to the RCA input on the Meridian.
Signal Cable makes a nice low-cost AES/EBU digital cable. In fact, someone has one for sale right now on Audiogon.
Signal Cable makes a nice low-cost AES/EBU digital cable. In fact, someone has one for sale right now on Audiogon.