The Yamaha RX-V685 can produce 90 watts per channel. If compare Yamaha RX-V685BL vs Yamaha RX-V683BL, the RX-V683BL works at higher impedance than RX-V685BL – 8 Ohm vs 6 Ohm. And both receivers cannot work with speakers in Third-zone. It also works with native 4K Ultra HD, HDR video with Hybrid Log-Gamma and Dolby Vision support. The surround sound created due to Dolby Atmos and DTS:X. The RX-V685BL is the network receiver and the user has access to many music streaming services. The certain functions of the receiver can be controlled via Amazon Alexa.
The Yamaha RX-V683BL has several configurations, including 5.1.2 or 7.1 configurations with a Second-zone, or an isolated 5.1 configuration for the front speakers, and all this is easily tuned using the on-screen menu. The total operational power is 610 into 8 ohms which is a lower versus Yamaha RX-V685BL which has the 650W. All DTS and Dolby technologies are supported by RX-V683, with DSP 3D, as well as high-resolution audio formats. On the video features, the RX-V683 supports 4K resolution at 60 Hz, including Hybrid Log Gamma, Dolby Vision, and HDR10.
The Yamaha RX-V685BL is better receiver in this comparison. Check Yamaha RX-V685BL price