I'm confused, Pig2fever. Was your question related to side surrounds, 4 & 5 of a 5.1 setup or rear surrounds, 6 & 7 of 7.1 setup? If 4 & 5, and if multi-channel music is important, matching the voicing of the 5 speakers is important. Is there any music that invokes channels 6 & 7 or are those channels used for film effects? Although I've tried to be careful about matching the voicing of the 5 speakers, I'm thinking about in-walls for 6 & 7.
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