An affordable AV receiver is always a good option to consider, so Denon AVR-X6400H vs Marantz SR5011 comparison definitely makes sense.
A significant difference between the receivers in the number of channels, Denon AVR-X6400H has 11.2 versus 7.2 for Marantz SR5011. Regarding power, then AVR-X6400H has such a W/Ohm ratio - 140/8, 250/6 when SR5011 has a power of 100/8, 140/6. The THD is 0.05% for the AVR-X6400H but 0.08% for the SR5011.
Characteristics of digital to analog converter (DAC) are different, AK4458 384 KHz/32-bit for AVR-X6400H and 192 KHz/24-bit for the SR5011. Both the AVR-X6400H and the SR5011 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 Denon AVR-X6400H has support for AirPlay, AirPlay 2, and its competitor in our comparison - AirPlay. Spotify can be used on each receiver. The AVR-X6400H can work with the audio stream from Deezer, TIDAL, Pandora, Napster, SiriusXM, TuneIn Radio, iHeart Radio, Sound Cloud, and the SR5011 can receive a content from Pandora, SiriusXM.
These units support HDR technology. 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 Denon AVR-X6400H has 8/3 HDMI inputs/outputs versus 8/2 HDMI connectors of the Marantz SR5011. The HDMI Audio Return Channel (ARC) feature supports both devices. The HDMI eARC is available only on the AVR-X6400H. 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 2.2. The AVR-X6400H has a built-in phono stage for connecting a vinyl player.
The AVR-X6400H supports 3 Multi-room zones, versus 2 for the SR5011. It is also worth noting that the ECO mode is presented in each of the receivers. Both AVR-X6400H and SR5011 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.