Best Buy via eBay offers the open-box Yamaha 5.1-Channel 700-watt 4K AV Receiver, model no. RX-V381BL, for $163.99 with free shipping. That's $16 under our mention from two days ago and $36 below the best price we could find for a sealed one. It features 140 watts per channel into five channels, YPAO multipoint optimization, 4K Ultra HD pass-through, four HDMI inputs, one HDMI output, Bluetooth, and AM/FM tuner with 40 presets.

Note: This item is new, but may not ship in original packaging.