Eelii08,
I own the P03/D03 combo and in my opinion, the best way to connect them is via the Dual AES/EBU digital connection. This allows you the flexibility to up convert redbook CD to 88.2, 176.4 or to DSD as well as play SACD's. In my listening tests, I prefer the up conversion to DSD for redbook. If you use the ilink Firewire connection, you can only send the D03 native redbook (16/44.1) and DSD from an SACD as the ilink connection bypasses the upconverter circuit in the P03.
I own the P03/D03 combo and in my opinion, the best way to connect them is via the Dual AES/EBU digital connection. This allows you the flexibility to up convert redbook CD to 88.2, 176.4 or to DSD as well as play SACD's. In my listening tests, I prefer the up conversion to DSD for redbook. If you use the ilink Firewire connection, you can only send the D03 native redbook (16/44.1) and DSD from an SACD as the ilink connection bypasses the upconverter circuit in the P03.