Yamaha’s RX-V4A and RX-V6A AV receivers are mid-range. They are ready to handle 8K content (4K up to 120Hz and 8K up to 60Hz), with RX-V4A supporting 8K on all four HDMI inputs and RX-V6A on three of seven inputs.
Naturally, the new products also include HDMI 2.1 gaming capabilities. These are Automatic Low Latency Mode (ALLM), Variable Refresh Rate (VRR), Fast Frame Transfer (QFT), and Fast Media Switching (QMS). They are expected to be especially in demand with next-gen gaming consoles from Sony and Microsoft.
To smoothly use longer HDMI cables, the supply current at their connectors was increased to 300mA. Both models support Dolby Vision, DTS: X and Dolby Atmos. In addition, the RX-V6A with the next firmware will add the ability to work with Dolby Atmos Height Virtualization. When looking at the redesigned front panel or the complete remote control, the new items are almost indistinguishable. But on the RX-V4A switching panel there are five acoustics outputs (with a power of 80W each), while the RX-V6A has seven of them – 100W each.
The built-in power amplifiers have been redesigned to provide a faster slew rate for high-resolution audio. For room acoustics analysis, RX-V AV receivers are equipped with YPAO (Yamaha Parametric room Acoustic Optimizer). Unlike the younger model, the RX-V6A has a phono input. Also, the RX-V4A and RX-V6A are provided with proprietary MusicCast functionality with Wi-Fi, AirPlay 2, Spotify Connect capabilities. Both receivers support music streaming services, multi-room and voice control via Alexa, Google and Siri-enabled devices. Wireless speakers Yamaha MusicCast 20 and MusicCast 50 can work as part of a home theater under the control of new products.
The redesigned RX-V4A and RX-V6A feature a high-resolution LCD display. The first Yamaha RX-V4A and RX-V6A AV receivers will be available in October for £450 and £650 in the UK.