An affordable AV receiver is always a good option to consider, so Pioneer Elite SC-LX704 vs Yamaha RX-V585BL comparison definitely makes sense.
A significant difference between the receivers in the number of channels, Pioneer Elite SC-LX704 has 9.2 versus 7.2 for Yamaha RX-V585BL. Regarding power, then Elite SC-LX704 has such a W/Ohm ratio - 135/8 when RX-V585BL has a power of 80/8, 145/6. The THD is 0.08% for the Elite SC-LX704 but 0.09% for the RX-V585BL.
Characteristics of digital to analog converter (DAC) are different, ES9026PRO 384 KHz/32-bit for Elite SC-LX704 and Burr-Brown 384 KHz/32-bit for the RX-V585BL. Both the Elite SC-LX704 and the RX-V585BL support Bi-amping. 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. The Apple Music service is implemented on considered devices: AirPlay, AirPlay 2. Spotify can be used on each receiver. The Elite SC-LX704 can work with the audio stream from Deezer, TIDAL, Pandora, and the RX-V585BL can receive a content from Deezer, TIDAL, Pandora, Napster, SiriusXM, TuneIn Radio.
Both AV receivers support HDR10 technology (High dynamic range). Compared AV receivers retain the quality of 4K/60Hz signal when transmitting from a source to a TV or projector. 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.
The Pioneer Elite SC-LX704 has 7/3 HDMI inputs/outputs versus 4/1 HDMI connectors of the Yamaha RX-V585BL. The HDMI Audio Return Channel (ARC) feature supports both devices. The HDMI eARC is available only on the RX-V585BL. The Consumer Electronics Control (CEC) feature is present in most modern AV receivers and the models in our comparison are no exception. The Elite SC-LX704 supports the protection of digital content of the standard HDCP 2.3, versus HDCP 2.2 in the RX-V585BL. The Elite SC-LX704 has a built-in phono stage for connecting a vinyl player.
The Elite SC-LX704 supports 3 Multi-room zones, versus 2 for the RX-V585BL. The Elite SC-LX704 supports voice control via Amazon Alexa, and the RX-V585BL - Amazon Alexa, Google Assistant, Siri. An ECO mode is only available for the RX-V585BL. Both Elite SC-LX704 and RX-V585BL 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.