Yamaha has unveiled two new Dolby Atmos receivers, the RX300A and RX500A, with support for next-gen gaming consoles and 8K.  Also read: Best Recievers of 2026 The $400 RX300A is a direct replacement for the RX-V385, and adds a number of features, including Dolby Atmos and DTS Virtual:X, 4K/120Hz compatibility, dual subwoofer outputs and Bluetooth Multipoint.  The company says the 5.2-channel RX300A receiver boasts enhanced build quality -- including a fifth, center-mounted foot and distinctive box-shaped design -- and an updated on-screen display. Unusually, Yamaha says the receiver can be configured as a 3.2.2-channel system, but this would presumably consist of front-only speakers plus two subwoofers. Based on my testing with dozens of AV receivers , a 5.2 arrangement with two rears would sound better -- there aren't as many height effects in a typical movie as there are surround ones. The $700 Yamaha YHT-4970 system includes the RX300A and a 5.1-channel speaker kit.…