Amazon offers the Yamaha Aventage 5.1-Channel WiFi Network A/V Receiver, model no. RX-A550, for $399.95 with free shipping. That's the lowest total price we could find by $50. It features up to 95 watts per channel, 4K and 3D pass-through, Bluetooth, WiFi, AirPlay, YPAO optimization, WiFi, six HDMI inputs, and one HDMI output.