Digital audio signals and analog audio signals are kept separate from each other. The multizone circuitry in Rotel surround receivers and preamp/processor is analog. If you have digital connections from your CD player or DVD player to your home theater receiver or preamp/processor, you must also use analog connections (RCA connecting cables) from your source components to the CD or DVD player input on the receiver or preamp/processor.

Do note that in addition to analog sources, the front USB source is also available in the remote zones on RSP-1572 and RSX-1562.