The Yamaha RX-A780 vs Marantz NR1504 comparison proves that these receivers have many common features.
A significant difference between the receivers in the number of channels, Yamaha RX-A780 has 7.2 versus 5.1 for Marantz NR1504. Regarding power, then RX-A780 has such a W/Ohm ratio - 95/8, 160/4 when NR1504 has a power of 50/8, 60/6. The THD is 0.06% for the RX-A780 but 0.08% for the NR1504.
Characteristics of digital to analog converter (DAC) are different, Burr-Brown 384 KHz/32-bit for RX-A780 and 192 KHz/24-bit for the NR1504. Only the RX-A780 supports Bi-amping feature. 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 Yamaha RX-A780 has support for AirPlay, AirPlay 2, and its competitor in our comparison - AirPlay. Spotify can be used on each receiver. The RX-A780 can work with the audio stream from Deezer, TIDAL, Pandora, Napster, SiriusXM, Qobuz, and the NR1504 can receive a content from Pandora, SiriusXM. HDMI signal transmission in standby mode is implemented in each of the devices. The RX-A780 can scale the input HDMI signal, unlike the NR1504. Dolby Vision technology found support only on the RX-A780.
The Yamaha RX-A780 has 7/2 HDMI inputs/outputs versus 6/1 HDMI connectors of the Marantz NR1504. The HDMI Audio Return Channel (ARC) feature supports both devices. The HDMI eARC is available only on the RX-A780. The Consumer Electronics Control (CEC) feature is present in most modern AV receivers and the models in our comparison are no exception. The RX-A780 supports the protection of digital content of the standard HDCP 2.3, versus HDCP 2.2 in the NR1504. The RX-A780 has a built-in phono stage for connecting a vinyl player. An ECO mode is only available for the RX-A780. Both RX-A780 and NR1504 can be configured using the Setup assistant.
Only the RX-A780 has a Dolby Atmos multichannel audio format support. A surround technology DTS:X is supported only by the RX-A780.