Onkyo TX-SR343 vs Marantz SR6010 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 SR6010. Regarding power, then TX-SR343 has such a W/Ohm ratio - 100/6 when SR6010 has a power of 110/8, 150/6. The THD is 0.08% for the TX-SR343 but 0.05% for the SR6010.
Characteristics of digital to analog converter (DAC) are different, TI Burr-Brown 192 KHz/24-bit for TX-SR343 and 192 KHz/32-bit for the SR6010. Only the SR6010 supports Bi-amping feature. The Marantz SR6010 can transmit an audio signal directly to the amplifier and bypasses any DSP processing.
Only the Marantz SR6010 can connect to the Internet via WI-FI. Rivals from our review have Bluetooth support. Only the SR6010 supports Spotify.
Only the Marantz SR6010 has support for High dynamic range (HDR). Compared AV receivers retain the quality of 4K/60Hz signal when transmitting from a source to a TV or projector. HDMI signal transmission in standby mode is implemented in each of the devices. The SR6010 can scale the input HDMI signal, unlike the TX-SR343. The HDR standard - Dolby Vision is not supported by these receivers.
The Onkyo TX-SR343 has 4/1 HDMI inputs/outputs versus 8/2 HDMI connectors of the Marantz SR6010. The HDMI Audio Return Channel (ARC) feature supports both devices. Unfortunately, HDMI eARC is not available on monitored devices. 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 SR6010 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 SR6010. The setup assistant will help you configure Marantz SR6010.
Only the SR6010 has a Dolby Atmos multichannel audio format support. A surround technology DTS:X is supported only by the SR6010.