Denon HEOS AVR vs Onkyo TX-NR626 comparison definitely makes sense.
A significant difference between the receivers in the number of channels, Denon HEOS AVR has 5.1 versus 7.2 for Onkyo TX-NR626. Regarding power, then HEOS AVR has such a W/Ohm ratio - 50/8, 65/6 when TX-NR626 has a power of 160/6. The THD is 0.05% for the HEOS AVR but 0.08% for the TX-NR626. Only the TX-NR626 supports Bi-amping feature. Each of the AV receivers can transmit an audio signal directly to the amplifier and bypasses any DSP processing.
Both models have the ability to connect to the Internet via WI-FI. 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 TX-NR626 can receive a content from TuneIn Radio, Last.fm, AUPEO, Simfy.
HDR is not available on each model. 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. The TX-NR626 can scale the input HDMI signal, unlike the HEOS AVR. The HDR standard - Dolby Vision is not supported by these receivers.
The Denon HEOS AVR has 4/1 HDMI inputs/outputs versus 6/2 HDMI connectors of the Onkyo TX-NR626. The HDMI Audio Return Channel (ARC) feature supports both devices. Unfortunately, HDMI eARC is not available on monitored devices. 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 TX-NR626 has a built-in phono stage for connecting a vinyl player. An ECO mode is not present in each of the AV receivers. Unfortunately, the setup assistant is not available in each of the models.
None of the rivals equipped with Dolby Atmos multichannel audio decoder. The receivers do not support the surround sound technology DTS:X.