AV Processor Checklist Definitions
Audioholics has a great article up that defines all the major features of modern AV Receivers. This is a must read if you are in the market for a new receiver!
From the article:
PLII / PLIIx & Adjustable
Pro Logic II â€“ This mode derives 5 full-range channels and
subwoofer output from a two-channel source. It includes modes for Music and
and provides a
more expansive or diffused sound that is makes good use of a systemâ€™s
Pro Logic IIx â€“ This
mode takes Pro Logic II one step further by expanding 2CH and multi-channel
channels. In more flexible processors, Dolby
Pro Logic II and IIx can be overlaid on top of DTS or Dolby Digital soundtracks
to intelligently make use of Surround Back channels.