Originally Posted by Peterc613
Actually, the addition of wides makes a dramatic difference when A/B tested 7.1 versus 9.1 in my system.
Multiple subs (Harmon Research found that four was optimal) also make a big difference for even ULF response.
In my theater (.6) Rear Ht, Top Middle, Front Ht fits my room better than (.4) Top rear overhead and Top front overhead
I'd say that 9.4.6 is the sweet spot for my system
totally could be, but we live in different houses
my biggest thing, is that right now i absolutely notice a 'hole' when i turn off the back surround speakers in order to use atmos. of course this is made much worse by the fact my 'surround' speakers are then on the side walls, and not actually behind me because it's arranged for a 7.1 layout. i wish there was a way i could tell my receiver to use the back surround channels for 5.1.2 instead of the side surround channels.
with 7.1.4 i have the 'perfect' layout for 7.1 sources, so feel confident in using all currently popular formats without compromise to any of them. and 4 overhead channels seems necessary to get the 'sweeping' effect overhead. imo, there should be at least one extra 'row' of speakers overhead than rows of seats. everybody should have ceiling speakers in front and behind them, not directly over top. but if you don't have more than one row, i have not 'heard' the point of more than 4.
i know the 'proven' convention is that more subs is better, but i honestly don't think anybody is going to convince me that I need more than one. when everything else in my life is taken care of, then i'll waste thousands of dollars on extra subs. i guess i'm living in that ignorance is bliss phase, but i find it quite odd how much guys will spend on multiple subs, and then have to spend even more trying to control(which i think is a fancy way of saying make quieter) all that bass from destroying their soundstage (and in some cases the room itself, haha)
reminds me of the guys that drop a ton of money into their engines, axles, and tires, because every time they upgrade one part, it overpowers the next and they never end up going any faster because they can't figure out how to control all the power they paid for. if it were as simple as doubling the cost, adding a second sub and getting a huge improvement that'd be one thing. but when we're talking about bass traps, eq's, and having to go the whole 9 yards, it ends up be a huge investment for something i honestly don't think i'd notice.
ok, i kind of went off on a rant there, maybe you should think of my decision for 7.1.4 as the 'minimum' satisfactory layout. cause that's pretty much what i base 'sweet spot' as. it's the cheapest way of getting something i won't complain about and won't feel like i'm missing anything