Review of Denon AVR-X4500H versus Onkyo TX-RZ920 will reveal the best features offered by the devices. According to the results of our review, Denon AVR-X4500H received 9.4 points out of 10 possible, and Onkyo TX-RZ920 was rated 8.4 points. The release date of AVR-X4500H is 2018, and TX-RZ920 is 2017. AVR-X4500H is better suited for home theater use than the TX-RZ920. Its sound profile is better balanced.
For the built-in amplifier, the models have rated 9 points out of 10.
The number of channels is equal to the number of possible connected speakers. Both receivers can handle the 9.2-channels configuration.
RMS stands for the actual power of the receiver. The higher this value, the louder the sound can be produced. The differences between the models in terms of RMS power are significant - for the TX-RZ920 this value is 135/8 W/Ohm, and for the AVR-X4500H it is 125/8 W/Ohm.
|Stereo power (RMS), W/Ohm||125/8, 165/6||135/8, 175/6|
|Output impedance, Ohm||8, 6||8, 6|
|THD in stereo, %||0.05||0.04|
After reviewing the audio features of each model, we can rate the AVR-X4500H 9 out of 10, and the TX-RZ920 - 8.
Speaker A/B switching allows you to change between the main and sub speaker set. Denon AVR-X4500H can work with the main and additional set of speakers - and switch between them.
|Digital to analog converter (DAC)||AK4458 384 KHz/32-bit||AK4490 384 KHz/32-bit|
|Pure direct (straight)||✔||✔|
|Auto speaker calibration||Audyssey MultEQ XT32||AccuEQ|
|Speaker A/B switching||✔||✖|
|Other audio features||Audyssey Dynamic Volume, Audyssey Dynamic EQ, Audyssey LFC, Compressed Audio Restorer||Theater-Dimensional, Hi-Res audio, Dynamic Audio Amplification|
The connectivity of competitors in our comparison is equal and was rated 8 out of 10.
|USB||1 (USB 2.0)||1 (USB 2.0)|
|Apple Music (AirPlay)||AirPlay, AirPlay 2||AirPlay, AirPlay 2|
|Other streaming services||Deezer, TIDAL, Pandora, Napster, SiriusXM, TuneIn Radio, iHeart Radio, Sound Cloud||Deezer, TIDAL, Pandora, TuneIn Radio|
The presence of many connectors makes the receiver more versatile. But there are also narrowly targeted models, the number of connectors which are limited to a certain area of use. And when choosing their own receiver, users need to consider exactly your goals for using the receiver. For extensive connection, Denon AVR-X4500H got 10 points, but Onkyo TX-RZ920 received 9 points.
Denon AVR-X4500H is equipped with 8/3 HDMI inputs and outputs, and Onkyo TX-RZ920 has 8/2 HDMI inputs and outputs.
|HDMI ARC (Audio Return Channel)||✔||✔|
|HDMI eARC (Enhanced Audio Return Channel)||✔||✔|
|Digital content protection (HDCP)||HDCP 2.2||HDCP 2.2|
|Subwoofer output (LFE)||2||2|
|Headphone output||1 x 6.3||1 x 6.3|
|Optical digital input||2||2|
|Coaxial digital input||2||2|
|Phono (MM) input||✔||✔|
|Front panel connectors||USB, HDMI, phones, setup mic||HDMI, phones, setup mic|
|Multi channel preamp output||✔||✔|
The AV receiver is the heart of the home theater. And in this case, support for all current video formats ensures the best user experience, so it is very important to consider this when choosing a device. Video features of rivals in our comparison were rated 10 out of 10.
|HDR (High Dynamic Range)||HDR10||HDR10|
|4K signal pass-through||4K/60Hz||4K/60Hz|
|8K signal pass-through||✖||✖|
|HDMI signal pass-through||✔||✔|
|3D signal pass-through||✔||✔|
|HDMI pass-through in standby mode||✔||✔|
|Video conversion||analog to HDMI||analog to HDMI|
|Analog to HDMI scaling||✔||✔|
|HDMI to HDMI scaling||✔||✔|
|Other video features||HLG, BT.2020||HLG, BT.2020|
In terms of evaluating additional features, the AVR-X4500H got 10 points, but the TX-RZ920 has 8.
Only the Denon AVR-X4500H has the ECO mode.
|Voice control||Amazon Alexa||Google Assistant|
|App control||iPhone, iPad, iPod, Android, Amazon Kindle||iPhone, iPad, iPod, Android|
|Display||colour OSD||colour OSD|
|Tuner||AM, FM||AM, FM|
|Auto power off||✔||✔|
|Graphical user interface (GUI)||✔||✖|
|Firmware update||network, USB||network, USB|
|Other additional features||IP Control||has not|
|Zone audio output||speaker, preout||speaker, preout|
|Zone HDMI output||✔||✔|
|Multi-room control||HEOS App||Onkyo Controller app, FlareConnect|
|Remote control input/output (IR)||1/1||1/0|
|DC trigger output (12V)||2||2|
Denon AVR-X4500H got 9 points for the multichannel surround sound and Onkyo TX-RZ920 got 7.
Auro 3D gives a bit more versatility than Dolby Atmos or DTS:X and provides a hemispherical sound and enables a receiver to produce 3D sound stages. Only the Denon AVR-X4500H has Auro-3D on its feature list.
|Dolby (other)||Dolby Digital Plus||Dolby Digital Plus|
|DTS HD Master||✔||✔|
|DTS (other)||DTS-ES, DTS 96/24, DTS-HD, DTS-EXPRESS, DTS-Surround||DTS-ES, DTS 96/24, DTS-HD, DTS-EXPRESS|