The Denon HEOS AVR vs Denon AVR-X4100W comparison proves that these receivers have many common features.
A significant difference between the receivers in the number of channels, Denon HEOS AVR has 5.1 versus 7.2 for Denon AVR-X4100W. Regarding power, then HEOS AVR has such a W/Ohm ratio - 50/8, 65/6 when AVR-X4100W has a power of 125/8, 165/6. The THD is the same and is 0.05%. Only the AVR-X4100W 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 AVR-X4100W can receive a content from Pandora, SiriusXM.
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 AVR-X4100W can scale the input HDMI signal, unlike the HEOS AVR. Dolby Vision technology found support only on the AVR-X4100W.
The Denon HEOS AVR has 4/1 HDMI inputs/outputs versus 8/3 HDMI connectors of the Denon AVR-X4100W. 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. The AVR-X4100W has a built-in phono stage for connecting a vinyl player. An ECO mode is only available for the AVR-X4100W. The setup assistant will help you configure Denon AVR-X4100W.
Only the AVR-X4100W has a Dolby Atmos multichannel audio format support. The receivers do not support the surround sound technology DTS:X.