eBay has the Onkyo TXNR676 7.2-Channel Smart A/V Receiver with 7x HDMI USB AUX Bluetooth open box for $299 - 15% off with coupon PLAYFUL15 (Ends 6/23; requires Paypal) = $254 with free shipping. Features up to 100W per Channel at 8 Ohms, AccuEQ Sound Optimization, Analog to HDMI Upconversion, HDMI with 3D and Audio Return Channel, 7 x HDMI-In / 2 x HDMI-Out, built-In Wi-Fi and Bluetooth.
Adorama has the Klipsch R-26PF 260W Powered Floorstanding Bluetooth Speaker with Remote Control (Pair, 1064478) for $400 with free shipping. Features 260W total system power, Bluetooth wireless technology with aptX, Phono Preamp built in with ground screw terminal, 3.5mm / RCA analog line inputs, USB and optical digital inputs.
eBay has the Harman Kardon Omni 20 WiFi Speaker (Black or White) refurbished for $80 with free shipping. List price: $300. It features a 53Hz to 20kHz frequency response, 802.11n wireless, and Bluetooth.