OneCall via Newegg offers the refurbished Onkyo 7.2-Channel Network Home Theater Receiver, model no. TX-NR838, for $599 with free shipping. That's $200 under the best price we could find for a new unit. It features 4K video pass through, Bluetooth, and seven HDMI inputs. Deal ends May 9.
A 1-year warranty applies, although it's unclear who backs it.