Discrete channels are actually encoded in the program material whether it is stereo, 5.1, 7.1 or Quadraphonic. Anything other than discrete channels which are created by the processing are matrixed channels. There is very little actual 7.1 discrete material available which is why we have PLll and other decoder/matrix programs to create the extra channels out of thin air. The same thing applies to the .2 channel as in 9.2 or 11.2. There is only one (.1) discrete track for LFE. Any others are duplicates or are created. If a processor would allow us to deal with the .2 channels separately then we could set two different subs to output different parts of the LFE spectrum. Does anyone know of a processor that allows this feature?