Denon AVR-X8500HSP vs Harman Kardon HK 3700 – that is a question.
The number of channels for receivers is different - 13.2 versus 2.0, respectively, for devices. In terms of power, there are differences, the AVR-X8500HSP has such a ratio W/Ohm - 150/8, 190/6, while the HK 3700 has a power of 85/8. The value of total harmonic distortion is also different, and for the AVR-X8500HSP it is 0.05%, but for the HK 3700 it is 0.07%.
The manufacturer installed different DACs, the AVR-X8500HSP received the model AK4490 384 KHz/32-bit, but the HK 3700 is equipped with 192 KHz/24-bit. The Bi-amping function is implemented only in the Denon AVR-X8500HSP. The model AVR-X8500HSP can transmit an audio signal directly to the amplifier and bypasses any DSP processing. Each of the receivers has a Bluetooth connector. The AVR-X8500HSP has access to the Spotify service. The number of available streaming services varies for receivers, the Denon AVR-X8500HSP works with Deezer, TIDAL, Pandora, Napster, SiriusXM, TuneIn Radio, iHeart Radio, Sound Cloud, but the Harman Kardon HK 3700 works with vTuner.
Support for the HDR function can only boast of the AVR-X8500HSP. HDMI signal transmission in standby mode can provide only the AVR-X8500HSP. Video scaling is only possible with the AVR-X8500HSP. Operation with the Dolby Vision is only possible with the AVR-X8500HSP. HDMI Audio Return Channel is only available on Denon AVR-X8500HSP. HDMI eARC is only supported by the AVR-X8500HSP. When comparing receivers, it becomes clear that only the Denon AVR-X8500HSP has HDMI CEC. Like most receivers, our models have a built-in phono stage for connecting a vinyl player. There is an ECO mode in AVR-X8500HSP. The Denon AVR-X8500HSP can be properly configured using the setup assistant.
A Dolby Atmos multichannel audio format is available only in the AVR-X8500HSP. Only in the AVR-X8500HSP realized a DTS:X surround technology.