Pioneer offers its refurbished Pioneer 630-watt 7.2-Channel 3D-Ready 4K Network Home Theater Receiver, model no. VSX-1123-K, for $299.99 with free shipping. That's $49 under the lowest total price we could find for a new model by $49. Features include 90 watts RMS per channel (165 watts peak) into seven channels, Dolby TrueHD and DTS-HD Master Audio, 4K passthrough and upscaling, AirPlay compatibility, Ethernet, eight HDMI inputs, and two HDMI outputs.

Note: It's unclear whether a warranty is provided.