Having had an opportunity to test Denon AVR-X4100W vs Yamaha R-N602BL, I’d like to share my impression here to facilitate your choice of a new AV receiver.
The number of channels for receivers is different - 7.2 versus 2.0, respectively, for devices. In terms of power, there are differences, the AVR-X4100W has such a ratio W/Ohm - 125/8, 165/6, while the R-N602BL has a power of 115/8, 105/4. The value of total harmonic distortion is also different, and for the AVR-X4100W it is 0.05%, but for the R-N602BL it is 0.01%.
The manufacturer installed different DACs, the AVR-X4100W received the model 192 KHz/24-bit, but the R-N602BL is equipped with Burr-Brown 192 KHz/24-bit. The Bi-amping function is implemented only in the Denon AVR-X4100W. Both Denon AVR-X4100W and Yamaha R-N602BL can transmit an audio signal directly to the amplifier and bypasses any DSP processing.
Wireless Internet access via WIFI is possible on both units. Each of the receivers has a Bluetooth connector. Both devices can work with such Apple Music services: AirPlay. Access to the Spotify service is on each of the competitors. The number of available streaming services varies for receivers, the Denon AVR-X4100W works with Pandora, SiriusXM, but the Yamaha R-N602BL works with Deezer, TIDAL, Pandora, Napster, SiriusXM, Qobuz.
Oddly enough, the support for the HDR function is not implemented in these units. HDMI signal transmission in standby mode can provide only the AVR-X4100W. Video scaling is only possible with the AVR-X4100W. Operation with the Dolby Vision is only possible with the AVR-X4100W. HDMI Audio Return Channel is only available on Denon AVR-X4100W. HDMI eARC is not supported by the AVR-X4100W and the R-N602BL. When comparing receivers, it becomes clear that only the Denon AVR-X4100W has HDMI CEC. Like most receivers, our models have a built-in phono stage for connecting a vinyl player. Voice control of the basic functions of the receiver is not realized in both models. There is an ECO mode in either AV receiver. The Denon AVR-X4100W can be properly configured using the setup assistant.
A Dolby Atmos multichannel audio format is available only in the AVR-X4100W. A DTS:X surround technology is not supported by devices from our comparison.