Yamaha has been feverishly adding MusicCast supporting products to their AV line. It doesn’t appear that they plan on stopping anytime soon. Based on the info that we have on the four new amps in their RX-V line, MusicCast is alive and strong. The new additions will consist of two 7-channel receivers – the RX-V583 and the RX-V683 and two new 5-channel receivers, the RX-V383 and RX-V483.


4K video is here to stay and all of these amps are staunch supporters of the UHD format. All support 4K passthrough, BT.2020 and High Dynamic Range (HDR) video. HDR currently comes in three common flavors – HDR10, Dolby Vision and Hybrid Log Gamma. HDR10 is supported right out of the box, while Dolby Vision and Hybrid Log Gamma are expected to come with a firmware update.


All 4 receivers include Bluetooth, however the Yamaha RX-V383 is the only one of these new amps that doesn’t include WiFi. The entry-level V383 also lacks MusicCast support. The RX-V483, RX-V583 and RX-V683 all include Yamaha’s multi-room MusicCast system. The multi-room platform allows you to stream audio to a variety of MusicCast compatible products such as sound bars, speakers, home theater in a box systems and other audio components.


The Yamaha RX-V383 includes a USB input which past Yamaha entry-level models lacked. One of the reasons for this is probably to facilitate firmware updates. If you have a vinyl turntable, the Yamaha RX-V683 is the only one of the bunch that has a dedicated phono input.


Since, the RX-V383 and RX-V483 are only 5 channel amps it’s impossible for them to support Dolby Atmos or DTS:X. However, you will find support for both of these object based audio formats inside the 7 channel Yamaha RX-V583 and RX-V683.


As far as power output, the 383 can push about 70 watts per channel, the 483 and 583 – 80 watts, and the 683 has the most power with 90 watts.


The wait will be short lived for all 4 AV receivers. The Yamaha RX-V383 and RX-483 are expected to arrive in April. The RX-V583 and RX-V683 should land in May.


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