Ending today, Massdrop offers the Sony 7.2-Channel Home-Theater AV Receiver for $299.99 with free shipping. That's tied with yesterday's expired mention and the lowest price we could find by $98. It features:
output of 165 watts
Bluetooth with NFC
compatible with Chromecast and Spotify
six HDMI inputs and two HDMI outputs
You very likely are putting your laptop battery into an early grave.