An audio/video (AV) receiver is an essential part of any home theater. It connects passive speakers to your TV, enabling you to build out a surround system –granted, you have more speakers.
AV receivers work seamlessly with the streaming devices you already have; they support 4K passthrough so you can plug your Apple TV 4K or Chromecast Ultra streaming stick right into the receiver and watch your favorite shows on your 4K TV, with great sound. Many have built-in Bluetooth or Wi-Fi streaming protocols, like AirPlay or Chromecast, so you can play music on your sound system straight from your smartphone.
Right now, Amazon is selling several AV receivers at discounted rates. It’s a great time to invest in one, especially with all the March Madness gamings coming down the pipeline.
Sony STRDH590 AV Receiver

4K Passthrough: Yes
Channels: 5.2
Watts per channel: 145-watts per channel
Key Features: supports Dolby Vision; built-in Bluetooth