An affordable AV receiver is always a good option to consider, so Marantz NR1510 vs Marantz NR1711 comparison definitely makes sense.
A significant difference between the receivers in the number of channels, Marantz NR1510 has 5.2 versus 7.2 for Marantz NR1711. Regarding power, then NR1510 has such a W/Ohm ratio - 50/8, 60/6 when NR1711 has a power of 50/8, 70/6. The THD is the same and is 0.08%. Only the NR1711 supports Bi-amping feature. Each of the AV receivers can transmit an audio signal directly to the amplifier and bypasses any DSP processing.
WI-FI modules have the same characteristics: 2.4/5GHz. Rivals from our review have Bluetooth support. The Apple Music service is implemented on considered devices: AirPlay, AirPlay 2. Spotify can be used on each receiver. The NR1510 can work with the audio stream from Deezer, TIDAL, Pandora, Napster, SiriusXM, TuneIn Radio, and the NR1711 can receive a content from Deezer, TIDAL, Pandora, SiriusXM, Napster, SoundCloud.
Both AV receivers support HDR10 technology (High dynamic range). HDMI signal transmission in standby mode is implemented in each of the devices. The NR1711 can scale the input HDMI signal, unlike the NR1510. The HDR standard - Dolby Vision is supported by these receivers.
The Marantz NR1510 has 8/1 HDMI inputs/outputs versus 6/1 HDMI connectors of the Marantz NR1711. The HDMI Audio Return Channel (ARC) feature supports both devices. HDMI eARC is available in each model. 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 2.3. These compared receivers have a built-in phono stage for connecting a vinyl player. Supported voice control technologies are identical - Amazon Alexa, Google Assistant, Siri, Josh.AI. It is also worth noting that the ECO mode is presented in each of the receivers. Both NR1510 and NR1711 can be configured using the Setup assistant.
Only the NR1711 has a Dolby Atmos multichannel audio format support. A surround technology DTS:X is supported only by the NR1711.