An affordable AV receiver is always a good option to consider, so Yamaha AVENTAGE RX-A2080 vs Yamaha RX-A4A comparison definitely makes sense.
A significant difference between the receivers in the number of channels, Yamaha AVENTAGE RX-A2080 has 9.2 versus 7.2 for Yamaha RX-A4A. Regarding power, then AVENTAGE RX-A2080 has such a W/Ohm ratio - 140/8, 220/4 when RX-A4A has a power of 110/8. The THD is the same and is 0.06%.
Characteristics of digital to analog converter (DAC) are different, ESS SABRE ( ES9007S) 384 KHz/32-bit for AVENTAGE RX-A2080 and 384 KHz/32-bit for the RX-A4A. Both the AVENTAGE RX-A2080 and the RX-A4A support Bi-amping. Each of the AV receivers can transmit an audio signal directly to the amplifier and bypasses any DSP processing.
WI-FI modules have the same characteristics: 2.4/5GHz. Rivals from our review have Bluetooth support. The Apple Music service is implemented on considered devices: AirPlay, AirPlay 2. Spotify can be used on each receiver. The AVENTAGE RX-A2080 can work with the audio stream from Deezer, TIDAL, Pandora, Sirius XM, Napster, Qobuz, and the RX-A4A can receive a content from Deezer, TIDAL, Pandora, SiriusXM, Napster, SoundCloud.
HDMI signal transmission in standby mode is implemented in each of the devices. Both rivals can scale the resolution of the incoming HDMI signal. The HDR standard - Dolby Vision is supported by these receivers.
Each receiver has 7/3 HDMI inputs/outputs. The HDMI Audio Return Channel (ARC) feature supports both devices. HDMI eARC is available in each model. The Consumer Electronics Control (CEC) feature is present in most modern AV receivers and the models in our comparison are no exception. Both models support the standard HDCP 2.3. These compared receivers have a built-in phono stage for connecting a vinyl player.
The AVENTAGE RX-A2080 supports 3 Multi-room zones, versus 2 for the RX-A4A. The AVENTAGE RX-A2080 supports voice control via Amazon Alexa, Google Assistant, and the RX-A4A - Amazon Alexa, Google Assistant, Siri, Josh.AI. It is also worth noting that the ECO mode is presented in each of the receivers. Both AVENTAGE RX-A2080 and RX-A4A can be configured using the Setup assistant.
Both devices have support for Dolby Atmos multichannel audio format. The surround sound technology DTS:X is supported by devices under review.