The Denon AVR-X2600H vs Marantz AV7703 comparison proves that these receivers have many common features.
A significant difference between the receivers in the number of channels, Denon AVR-X2600H has 7.2 versus 11.2 for Marantz AV7703. The THD is the same and is 0.08%.
Competitors' digital to analog converter (DAC) is identical to 192 KHz/32-bit. Both the AVR-X2600H and the AV7703 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 AVR-X2600H can work with the audio stream from Deezer, TIDAL, Pandora, Napster, SiriusXM, TuneIn Radio, iHeart Radio, Sound Cloud, Mood Mix, and the AV7703 can receive a content from Deezer, TIDAL, Pandora, Napster, iHeart Radio, SiriusXM, Sound Cloud. 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-X2600H has 8/2 HDMI inputs/outputs versus 8/3 HDMI connectors of the Marantz AV7703. The HDMI Audio Return Channel (ARC) feature supports both devices. The HDMI eARC is available only on the AVR-X2600H. The Consumer Electronics Control (CEC) feature is present in most modern AV receivers and the models in our comparison are no exception. The AVR-X2600H supports the protection of digital content of the standard HDCP 2.3, versus HDCP 2.2 in the AV7703. These compared receivers have a built-in phono stage for connecting a vinyl player.
The AVR-X2600H supports 2 Multi-room zones, versus 3 for the AV7703. Supported voice control technologies are identical - Amazon Alexa, Google Assistant, Siri, Josh.AI. It is also worth noting that the ECO mode is presented in each of the receivers. Both AVR-X2600H and AV7703 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.