It’s strongly recommended to compare different receivers if you want to choose the best one: Denon AVR-X4500H vs Denon AVR-X6500H.
The number of channels for receivers is different - 9.2 versus 11.2, respectively, for devices. In terms of power, there are differences, the AVR-X4500H has such a ratio W/Ohm - 125/8, 165/6, while the AVR-X6500H has a power of 140/8, 175/6. A common feature for devices is the same total harmonic distortion - 0.05%.
The manufacturer installed different DACs, the AVR-X4500H received the model AK4458 384 KHz/32-bit, but the AVR-X6500H is equipped with 192 KHz/32-bit. Each of the compared opponents supports Bi-amping. Both Denon AVR-X4500H and Denon AVR-X6500H can transmit an audio signal directly to the amplifier and bypasses any DSP processing.
Wireless Internet access via WIFI is possible on both units. Each of the receivers has a Bluetooth connector. Both devices can work with such Apple Music services: AirPlay, AirPlay 2. Access to the Spotify service is on each of the competitors. The number of available streaming services varies for receivers, the Denon AVR-X4500H works with Deezer, TIDAL, Pandora, Napster, SiriusXM, TuneIn Radio, iHeart Radio, Sound Cloud, but the Denon AVR-X6500H works with Deezer, TIDAL, Pandora, Napster, SiriusXM, TuneIn Radio, iHeart Radio, Sound Cloud, Mood Mix.
The HDR10 function is present in each of the rivals. The quality of 4K/60Hz signal remains unchanged when transmitting from a source to a TV or projector via HDMI for both receivers. Signaling over HDMI in standby mode can provide the AVR-X4500H and the AVR-X6500H. Each of the devices can increase the resolution of the incoming video signal. Each of the participants of the comparison has a Dolby Vision.
The number of HDMI inputs/outputs is the same - 8/3. HDMI Audio Return Channel is implemented in both devices. HDMI eARC is supported by the AVR-X4500H and the AVR-X6500H. When comparing receivers, it becomes clear that each of the rivals can work with HDMI CEC. AVR-X4500H and AVR-X6500H support the standard HDCP 2.2. Like most receivers, our models have a built-in phono stage for connecting a vinyl player.
Ability to create 3 Multi zones inherent in both AV receivers. For voice control in the AVR-X4500H is used Amazon Alexa, but in the AVR-X6500H is used Amazon Alexa, Google Assistant, Siri, Josh.AI. There is an ECO mode in either AV receiver. The Denon AVR-X4500H and the Denon AVR-X6500H can be properly configured using the setup assistant.
A Dolby Atmos multichannel audio format is available both models. A DTS:X surround technology is supported by devices from our comparison.