Marantz NR1609 vs Harman Kardon AVR 1510 comparison definitely makes sense.
A significant difference between the receivers in the number of channels, Marantz NR1609 has 7.2 versus 5.1 for Harman Kardon AVR 1510. Regarding power, then NR1609 has such a W/Ohm ratio - 50/8 20Hz-20KHz, 70/6 1KHz when AVR 1510 has a power of 75/8 1KHz, 75/6 1KHz. The THD is 0.08% for the NR1609 but 0.09% for the AVR 1510.
Competitors' digital to analog converter (DAC) is identical to 192 KHz/24-bit. Only the NR1609 supports Bi-amping feature. The Marantz NR1609 can transmit an audio signal directly to the amplifier and bypasses any DSP processing. Only the NR1609 has Bluetooth support. Only the NR1609 supports Spotify.
Only the Marantz NR1609 has support for High dynamic range (HDR). Compared AV receivers retain the quality of 4K 60p 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 NR1609 can scale the input HDMI signal, unlike the AVR 1510. Dolby Vision technology found support only on the NR1609.
The Marantz NR1609 has 8/1 HDMI inputs/outputs versus 4/1 HDMI connectors of the Harman Kardon AVR 1510. The HDMI Audio Return Channel (ARC) feature supports both devices. Unfortunately, HDMI eARC is not available on monitored devices. Of the two receivers in our comparison, HDMI CEC is present in only the NR1609. The NR1609 supports the protection of digital content of the standard HDCP 2.2, versus HDCP 1.4 in the AVR 1510. The NR1609 has a built-in phono stage for connecting a vinyl player. An ECO mode is only available for the NR1609. The setup assistant will help you configure Marantz NR1609.
Only the NR1609 has a Dolby Atmos multichannel audio format support. A surround technology DTS:X is supported only by the NR1609.
The Marantz NR1609 is better receiver in this comparison. Check Marantz NR1609 price