The Yamaha RX-V685BL 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-V685BL has 7.2 versus 5.1 for Marantz NR1504. Regarding power, then RX-V685BL has such a W/Ohm ratio - 90/8, 150/4 when NR1504 has a power of 50/8, 60/6. The THD is 0.06% for the RX-V685BL but 0.08% for the NR1504.
Characteristics of digital to analog converter (DAC) are different, Burr-Brown 384 KHz/32-bit for RX-V685BL and 192 KHz/24-bit for the NR1504. Only the RX-V685BL 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 Apple Music service is implemented on considered devices: AirPlay. Only the NR1504 supports Spotify. HDMI signal transmission in standby mode is implemented in each of the devices. The RX-V685BL can scale the input HDMI signal, unlike the NR1504. Dolby Vision technology found support only on the RX-V685BL.
The Yamaha RX-V685BL has 5/2 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-V685BL. 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 RX-V685BL has a built-in phono stage for connecting a vinyl player. A voice control is not available. An ECO mode is only available for the RX-V685BL. Both RX-V685BL and NR1504 can be configured using the Setup assistant.
Only the RX-V685BL has a Dolby Atmos multichannel audio format support. A surround technology DTS:X is supported only by the RX-V685BL.