It’s strongly recommended to compare different receivers if you want to choose the best one: Denon AVR-S750H vs Yamaha RX-V481BL.
The number of channels for receivers is different - 7.2 versus 5.1, respectively, for devices. In terms of power, there are differences, the AVR-S750H has such a ratio W/Ohm - 75/8, 110/6, while the RX-V481BL has a power of 80/6. The value of total harmonic distortion is also different, and for the AVR-S750H it is 0.08%, but for the RX-V481BL it is 0.09%.
The manufacturer installed different DACs, the AVR-S750H received the model AKM 192 KHz/32-bit, but the RX-V481BL is equipped with Burr-Brown 192 KHz/24-bit. The Bi-amping function is implemented only in the Yamaha RX-V481BL. Both Denon AVR-S750H and Yamaha RX-V481BL 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. The contenders have differences in the supported services from Apple - AirPlay, AirPlay 2 versus AirPlay respectively. Access to the Spotify service is on each of the competitors. The number of available streaming services varies for receivers, the Denon AVR-S750H works with Deezer, TIDAL, Pandora, Napster, SiriusXM, TuneIn Radio, iHeart Radio, Sound Cloud, Mood Mix, but the Yamaha RX-V481BL works with Pandora, Qobuz, JUKE. The quality of 4K/60Hz signal remains unchanged when transmitting from a source to a TV or projector via HDMI for both receivers. Signaling over HDMI in standby mode can provide the AVR-S750H and the RX-V481BL. None of the devices can increase the resolution of the incoming video signal. Operation with the Dolby Vision is only possible with the AVR-S750H.
The number of HDMI inputs/outputs varies depending on the receiver, the AVR-S750H has 6/1, and the RX-V481BL has 4/1. HDMI Audio Return Channel is implemented in both devices. HDMI eARC is only supported by the AVR-S750H. When comparing receivers, it becomes clear that each of the rivals can work with HDMI CEC. The AVR-S750H has support for the standard HDCP 2.3, compared to the RX-V481BL, which supports the standard HDCP 2.2. In the presence of a built-in phono stage for connecting a vinyl player only at Denon AVR-S750H. There is an ECO mode in either AV receiver. The Denon AVR-S750H and the Yamaha RX-V481BL can be properly configured using the setup assistant.
A Dolby Atmos multichannel audio format is available only in the AVR-S750H. Only in the AVR-S750H realized a DTS:X surround technology.