B&K Reference 20 Plus Owner's Manual page 15

15. Coax Digital inputs - Coax digital inputs are used to connect digital audio signals from your source to the
receiver. The incoming signal may be PCM, Dolby Digital (AC-3) or DTS.
(Optional)
DVD Audio inputs – Optional connections for a DVD audio or other 5.1 source device.
Center (TV-V3)
Sub (SAT)
Ls ( V2)
Rs (CD)
Lf ( V1)
Rf ( DVD/VLD)
RCA jacks - center front surround audio inputs
RCA jacks - sub audio inputs
RCA jacks - left rear surround audio inputs
RCA jacks - right rear surround audio inputs
RCA jacks - left front surround audio inputs
RCA jacks - right front surround audio inputs
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