So if you are not going to upgrade to 7.1, then AVR1713 would be more than enough. As far as the room size is concerned, AVR1713 mated with right speakers will be sufficient enough to power your room. I think some one in the forum will help you in finding the matching bookshelf speakers.
Thanks Shanmune for the inputs.
So in case I plan to have 2 zones through the same AVR, should I go for the 1913 or the 2113?
Are all the 2 models providing the same no of HDMI inputs etc??
If you know pls do share the price points for these models..