Nothing wrong with using an avr for even 2ch needs, and few 2ch units have bass management as avrs do. They're fairly cost effective compared to a lot of 2ch stuff....take Mr Boat's example, that's an $800 two ch receiver, and does have some bass management, albeit a tad limited. If a tv isn't handy for using the menus for setup of an avr, that might be a consideration, as they're easier to use with a tv in many cases and the front panels aren't always easy to read/use.
The Denon 3300 sometimes can be found for less money than the
price shown here but this is $100 less than the Outlaw 2160. It's not the current model but has almost everything the replacement 3400 does. You can read the Audioholics test of the 3300 here
http://www.audioholics.com/av-receiver-reviews/denon-avr-x3300w-1/measurements
Might also want to check out accessories4less.com for refurbs or closeouts to save some $.