Join Date: Mar 2010
Location: Phoenix, Arizona
Mentioned: 3 Post(s)
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Functional differences are if you want to go beyond 7 channels in the future (of processing, not internal amps).
1040 and 1050 can go to 5.2.2 = 7
2040 and 2050 can go to 5.4.2 or 7.2.2 = 9
3040 and 3050 can go to 7.4.2 = 11
Another functional difference which may not matter to you is the xx40 series have multi channel analog inputs.
DTS-X only matters for when you add "ATMOS" type speaker positions.
For me, the 20x0 would be the choice, because I want to do 5.4.2 and don't have an easy way to expand to 7.4.2. For you, it sounds like either the 10x0 or 30x0 would be the choice, depending on how much you want to spend on DACs.
LCR: Hsu HB-1 MK2, HC-1 MK2..........Subwoofers: Rhythmik D15SE, Hsu VTF-2 MK4
Receiver: Denon 1712CI, 2310CI........Networking: Roku 3, WDTV Live......Other: MiniDSP 2x4 RevB
Blu-Ray: Oppo BDP-80, Sony S590.....TV: Samsung PN60F8500, Panasonic TC-50PU54
Atmos/DTS-X: 5.1.4; RSL C34E speakers; receiver TBD