Denon HEOS AVR vs Yamaha RX-V4A comparison definitely makes sense.
A significant difference between the receivers in the number of channels, Denon HEOS AVR has 5.1 versus 5.2 for Yamaha RX-V4A. Regarding power, then HEOS AVR has such a W/Ohm ratio - 50/8, 65/6 when RX-V4A has a power of 80/6. The THD is 0.05% for the HEOS AVR but 0.06% for the RX-V4A. Only the RX-V4A supports Bi-amping feature. Each of the AV receivers can transmit an audio signal directly to the amplifier and bypasses any DSP processing. Rivals from our review have Bluetooth support. Spotify can be used on each receiver. The HEOS AVR can work with the audio stream from Deezer, TIDAL, Pandora, Napster, SiriusXM, TuneIn Radio, iHeart Radio, Sound Cloud, and the RX-V4A can receive a content from Deezer, TIDAL, Pandora, SiriusXM, Qobuz. HDMI signal transmission in standby mode is implemented in each of the devices. The RX-V4A can scale the input HDMI signal, unlike the HEOS AVR. Dolby Vision technology found support only on the RX-V4A.
Each receiver has 4/1 HDMI inputs/outputs. The HDMI Audio Return Channel (ARC) feature supports both devices. The HDMI eARC is available only on the RX-V4A. The Consumer Electronics Control (CEC) feature is present in most modern AV receivers and the models in our comparison are no exception. The HEOS AVR supports the protection of digital content of the standard HDCP 2.2, versus HDCP 2.3 in the RX-V4A. Receivers do not have a built-in phono stage for connecting a vinyl player. The HEOS AVR supports voice control via Amazon Alexa, Google Assistant, and the RX-V4A - Amazon Alexa, Google Assistant, Siri. An ECO mode is only available for the RX-V4A. The setup assistant will help you configure Yamaha RX-V4A.
None of the rivals equipped with Dolby Atmos multichannel audio decoder. The receivers do not support the surround sound technology DTS:X.