From what I can tell, the difference between the 1912 and 1613 is the number of channels, watts per channel, video upconversion, and HDMI inputs.
The 1613 does not have the upconversion,but I'm not sure I need it. My fiancee wouldn't let me get 7.1, but I'm comfortable staying at 5.1.
So, not to discount your 1912 suggestion,but in your opinion, how does the 1613 stack up against the 1912, leaving out the 2 channel difference.
Would the difference in watts per channel make a difference?