My recent post on extended surround surprised me with the response it drew, both quantitatively and qualitatively. I think what surprised me the most was how many of you have already moved beyond 5.1. Myself and most of the writers for the magazine are still using 5.1 as a base system, and occasionally jury-rigging extended surround on an as-needed basis for testing. I can’t answer for all of them, but I did want to pass along more of my own thoughts and experiences on the subject and why I’m still using 5.1 and not at all likely to change that anytime soon.
Years ago, I experimented extensively with both 6.1- and 7.1-channel surround sound, both with a single surround back channel and with two surround back channels. I was then in a dual-purpose living room space, and the 6.1 with the single surround back channel was most effective, but not enough to totally sell me on the concept. My last two rooms have been dedicated media spaces, and each has been in the neighborhood of 25x16, with a first a 10’ ceiling and now just under 9’. The first house was new construction with a ground-up media room build. It was a big room, and I pre-wired the back wall for 7.1 as a precaution. It turned out I never felt I needed it and when I moved to my current house, a retrofit job, I didn’t give any consideration to 7.1, let alone height and width expansion. Let me speculate on why.