World Wide Stereo via eBay offers the Onkyo 7.2-Channel Network AV Receiver, model no. TX-NR646, bundled with two Infinity Primus Bookshelf Speakers, model no. P163, for $549 with free shipping. That's $10 under the lowest total price we could find for these items sold separately elsewhere. The receiver features up to 170 watts per channel (at six ohms), 4K UHD pass-through, WiFi, Bluetooth, USB input, eight HDMI inputs, and two HDMI outputs. The speakers feature a frequency response of 49Hz to 20kHz, 90dB sensitivity, and and 0.75" tweeters.