How prolific do people think 7.1 will become over 6.1? Should I look at getting a matching front centre (78c) to be used on my rear surround channel 6, or should I look at a matched pair of rear surrounds (78ds) with an amp and use my 7.1 pre outs? I know only my ears will be able to tell me what I think is best for my deaf tinitus enhanced hearing, but asking people their opinions never hurt anyone, much. This is all pie in the sky as I have just upgraded and it will probably be a 12 month decision process as the last one took about that long, give or take 6 months, so I'm just testing the water at the moment. I guess in 12 months kit will have moved on again and everyone will be talking about 12.3 channel music, with chips implanted in our brains/ears being the norm and we'll all think we're Johnny Menomic.