Harman Kardon AVR 1600 Owner's Manual page 41

Surround Mode Description
low-frequency effects (LFE) channel.
Digital Plus has the capacity for additional discrete channels and for
streaming audio from the Internet, all with enhanced audio quality. Source
Dolby Digital, such as night mode settings, while delivering fully lossless
audio that is a true reproduction of the studio master recording.
Dolby Pro Logic II Analog decoder that derives five full-range, discrete main audio channels
are available.
Dolby Pro Logic IIx An expansion of Dolby Pro Logic II that adds a surround back channel
which may be played through one or two surround back speakers. The
Dolby Pro Logic IIx modes may be selected not only with Dolby Digital bit-
streams, but thanks to the AVR 1600's post-processor, they may also be used
with some DTS bitstreams to add a surround back channel to 5.1 modes.
Incoming Bitstream or Signal
3/0/.0 or .1, 2/1/.0 or .1, 2/2/.0 or .1,
3/2/.0 or .1
via coax or optical connection
(source device decodes to Dolby Digital
when a coax or optical connection is used)
™
3/0/.0 or .1, 2/1/.0 or .1, 2/2/.0 or .1,
3/2/.0 or .1
See below
See below
APPENDIX
41