An affordable AV receiver is always a good option to consider, so Marantz NR1609 vs Onkyo TX-SR393 comparison definitely makes sense.
A significant difference between the receivers in the number of channels, Marantz NR1609 has 7.2 versus 5.2 for Onkyo TX-SR393. Regarding power, then NR1609 has such a W/Ohm ratio - 50/8, 70/6 when TX-SR393 has a power of 80/8, 155/6. The THD is the same and is 0.08%.
Characteristics of digital to analog converter (DAC) are different, 192 KHz/24-bit for NR1609 and AKM 384 KHz/32-bit for the TX-SR393. Only the NR1609 supports Bi-amping feature. The Marantz NR1609 can transmit an audio signal directly to the amplifier and bypasses any DSP processing. Rivals from our review have Bluetooth support. Only the NR1609 supports Spotify. 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. Both rivals can scale the resolution of the incoming HDMI signal. The HDR standard - Dolby Vision is supported by these receivers.
The Marantz NR1609 has 8/1 HDMI inputs/outputs versus 4/1 HDMI connectors of the Onkyo TX-SR393. 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 NR1609 has a built-in phono stage for connecting a vinyl player.
Each of the AV receivers from our review supports 2 Multi-room zones. An ECO mode is only available for the NR1609. The setup assistant will help you configure Marantz NR1609.
Both devices have support for Dolby Atmos multichannel audio format. The surround sound technology DTS:X is supported by devices under review.