Hi - being a student on diet Pepsi, looking to spend no more than $500 on a AV receiver and currently torn btw AVR-1910 and HTR-6160/V663 for ex. I am open to all other models of other companies too. However for personal reasons looking for new/open box/refurb but not used. My primary motivation is SOUND as good as possible. Speakers: Paradigm Cinema90. Sincerely, I am satisfied with 2 HDMI, but looking for great upstream/downstream conversions, low THD as possible, great auto speaker setup, XM/Sirrius - don't care and need multi-room support and support across multiple Dolby/DTS formats esp. w.r.t. BlueRay editions.