I don't necessarily agree that having more channels will make for a better experience. If one wants to populate a room with a bunch of mini monitors to create a motion experience for a game then I can see where that would be better. Musically, I don't see it. I much prefer two channel music over any multi-channel creation out there. I haven't heard any 4 or 5 channel discrete material so it may be pretty good but most music is two channel. I listen to my 990 in a 2.1 setup for almost all music. Is there any good multi-channel material out there which isn't matrixed?
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Music system
Model 990/7500/Magnepan 1.6 QRs/Technics SL1200 MK2/Aperion S-12 Subwoofer/OWA3/Sony NS75H DVD
APC H15 Power Conditioner

TV System
Large Advent Loudspeakers/ Polk center/Monoprice surrounds/Panasonic Viera 42 inch/Onkyo HT-RC260/Sony BDP S590/Directv


Home Theater System
Onkyo PR-SC886/Outlaw 7125 Klipsch RF-82 L/R,RC-62 center, RB-35 SR/SL, BENQ HT1075, Outlaw LFM1-EX/OPPO BDP-83/Directv
Harmony ONE
Blue Jeans and Monoprice interconnects
APC H15 Power Conditioner