The Denon HEOS AVR vs Onkyo TX-SR373 comparison makes sense because it shows what devices in their segments can offer. According to the results of our review, Denon HEOS AVR received 4.8 points out of 10 possible, and Onkyo TX-SR373 was rated 4.2 points. Both AV receivers were introduced in 2017. HEOS AVR is more suitable as the heart of home theater system than its opponent - TX-SR373.
For the built-in amplifier, the models have rated 6 points out of 10.
The number of channels is equal to the number of possible connected speakers. Both receivers can handle the 5.1-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-SR373 this value is 135/6 W/Ohm, and for the HEOS AVR it is 65/6 W/Ohm.
|Stereo power (RMS), W/Ohm||50/8, 65/6||135/6|
|Output impedance, Ohm||8, 6||6|
|THD in stereo, %||0.05||0.06|
The score for audio features is 5 of 10 for both receivers.
Pure Direct mode feeds sound directly to the amplifier and bypasses any DSP processing. Only Denon HEOS AVR has Pure Direct mode.
Most receivers now come with a microphone included. It is with the help of this microphone that the auto-calibration system functions, which adjusts the sound of the receiver to the room.
|Digital to analog converter (DAC)||N/A||192 KHz/24-bit|
|Pure direct (straight)||✔||✖|
|Auto speaker calibration||✖||AccuEQ|
|Speaker A/B switching||✖||✖|
|Other audio features||has not||has not|
The connectivity of competitors in our comparison is markedly different, Denon HEOS AVR scored 7, and Onkyo TX-SR373 scored 5 out of 10.
Wireless connection via Wi-Fi is possible only on the Denon HEOS AVR.
Bluetooth connection is now one of the main communication protocols for the receiver's control or even music broadcasting.
Wired internet connection via RJ45 allows receiver faster connection than wireless or even use NAS storages. Wired connection via RJ45 is possible in the HEOS AVR only.
|USB||1 (USB 2.0)||1 (USB 2.0)|
Now music streaming services are gaining more and more popularity. They allow users to listen to millions of songs by subscription.
|Apple Music (AirPlay)||✖||✖|
|Other streaming services||Deezer, TIDAL, Pandora, Napster, SiriusXM, TuneIn Radio, iHeart Radio, Sound Cloud||has not|
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 HEOS AVR got 5 points, but Onkyo TX-SR373 received 6 points.
Competitors in our review have 4/1 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)||1||1|
|Headphone output||1 x 6.3||1 x 6.3|
|Optical digital input||1||1|
|Coaxial digital input||1||1|
|Phono (MM) input||✖||✖|
|Front panel connectors||✖||USB, 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 5 out of 10.
HDR pass-through gives you the possibility to broadcast HDR content directly from source to TV without the processing of the receiver. HDR support is available on the Onkyo TX-SR373.
|HDR (High Dynamic Range)||✖||✔|
|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||✔||✔|
|Analog to HDMI scaling||✖||✖|
|HDMI to HDMI scaling||✖||✖|
|Other video features||has not||DeepColor, x.v.Color|
In terms of evaluating additional features, the HEOS AVR got 4 points, but the TX-SR373 has 5.
Voice control allows you to control the basic functions of the receiver through a smartphone, smart speaker or using the microphone that comes with the kit. The HEOS AVR can be controlled by voice via Amazon Alexa, Google Assistant.
|Voice control||Amazon Alexa, Google Assistant||✖|
|App control||iPhone, iPad, iPod, Android||iPhone, iPod, Android|
|Auto power off||✖||✔|
|Graphical user interface (GUI)||✖||✖|
|Firmware update||network, USB||USB|
|Other additional features||has not||has not|
As the center of a home media system, each multichannel receiver has an additional set of terminals for connecting the second set of speakers to create additional audio space in Zone 2 or even Zone 3 where audio can have the separate source.
|Multi-room zones||has not||has not|
|Zone audio output||has not||has not|
|Zone HDMI output||has not||has not|
|Multi-room control||HEOS App||has not|
|Remote control input/output (IR)||1/0||0/0|
|DC trigger output (12V)||0||0|
For the ability to create multichannel surround sound, each of the receivers received 5 points out of 10.
|Dolby (other)||Dolby Pro Logic||Dolby Digital Plus|
|DTS HD Master||✔||✖|
|DTS (other)||has not||DTS 96/24, DTS-HD|