An affordable AV receiver is always a good option to consider, so Onkyo TX-SR343 vs Marantz NR1711 comparison definitely makes sense.
A significant difference between the receivers in the number of channels, Onkyo TX-SR343 has 5.1 versus 7.2 for Marantz NR1711. Regarding power, then TX-SR343 has such a W/Ohm ratio - 100/6 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. The Marantz NR1711 can transmit an audio signal directly to the amplifier and bypasses any DSP processing. Rivals from our review have Bluetooth support. Only the NR1711 supports Spotify. HDMI signal transmission in standby mode is implemented in each of the devices. The NR1711 can scale the input HDMI signal, unlike the TX-SR343. Dolby Vision technology found support only on the NR1711.
The Onkyo TX-SR343 has 4/1 HDMI inputs/outputs versus 6/1 HDMI connectors of the Marantz NR1711. The HDMI Audio Return Channel (ARC) feature supports both devices. The HDMI eARC is available only on the NR1711. The Consumer Electronics Control (CEC) feature is present in most modern AV receivers and the models in our comparison are no exception. The TX-SR343 supports the protection of digital content of the standard HDCP 2.2, versus HDCP 2.3 in the NR1711. The NR1711 has a built-in phono stage for connecting a vinyl player. An ECO mode is only available for the NR1711. The setup assistant will help you configure Marantz NR1711.
Only the NR1711 has a Dolby Atmos multichannel audio format support. A surround technology DTS:X is supported only by the NR1711.