An overview of Denon AVRX4400H and Pioneer SC-LX502 will help us understand the many features that the devices are equipped with. According to the results of our review, Denon AVRX4400H received 9.2 points out of 10 possible, and Pioneer SC-LX502 was rated 8.1 points. Both AV receivers were introduced in 2017. And as a result of the review, it becomes clear that SC-LX502 is inferior in audio processing features to AVRX4400H.
For the built-in amplifier, the devices received different marks - 9 and 8, respectively, on a 10-point scale.
The number of channels is equal to the number of possible connected speakers. The Denon AVRX4400H supports 9.2-channels sound, but Pioneer SC-LX502 supports a 7.2-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 AVRX4400H this value is 125/8 W/Ohm, and for the SC-LX502 it is 120/8 W/Ohm.
|Stereo power (RMS), W/Ohm||125/8, 165/6||120/8, 225/6|
|Output impedance, Ohm||8, 6||8, 6|
|THD in stereo, %||0.05||0.08|
After reviewing the audio features of each model, we can rate the AVRX4400H 9 out of 10, and the SC-LX502 - 10.
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)||192 KHz/24-bit||AK4458 768 KHz/32-bit|
|Pure direct (straight)||✔||✔|
|Auto speaker calibration||Audyssey MultEQ XT32||MCACC|
|Speaker A/B switching||✔||✔|
|Other audio features||Hi-Res audio||Advanced Sound Retriever, Hi-Res audio, Reflex Optimizer|
The connectivity of competitors in our comparison is markedly different, Denon AVRX4400H scored 7, and Pioneer SC-LX502 scored 8 out of 10.
Bluetooth connection is now one of the main communication protocols for the receiver's control or even music broadcasting.
|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)||AirPlay, AirPlay 2||AirPlay|
|Other streaming services||Deezer, TIDAL, Pandora,iHeart Radio, Sirius XM, Sound Cloud, Napster||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 AVRX4400H got 10 points, but Pioneer SC-LX502 received 8 points.
Denon AVRX4400H is equipped with 8/3 HDMI inputs and outputs, and Pioneer SC-LX502 has 7/2 HDMI inputs and outputs.
HDMI eARC is the next step in the development of audio return channel technology, which works in conjunction with HDMI 2.1. Using eARC provides the highest sound quality for home audio systems. HDMI eARC is available only on Denon AVRX4400H.
|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||1|
|Phono (MM) input||✔||✔|
|Front panel connectors||USB, HDMI, phones, setup mic, AUX||USB, HDMI, phones, setup mic, AUX|
|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|
|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||DeepColor, x.v.Color||DeepColor, x.v.Color, HLG|
In terms of evaluating additional features, the AVRX4400H got 10 points, but the SC-LX502 has 7.
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 AVRX4400H can be controlled by voice via Amazon Alexa, Google Assistant, Siri, Josh.AI. Only the Denon AVRX4400H has the ECO mode.
|Voice control||Amazon Alexa, Google Assistant, Siri, Josh.AI||✖|
|App control||iPhone, iPad, Mac, Android||iPhone, iPad, iPod, Android|
|Tuner||AM, FM||AM, FM|
|Auto power off||✔||✔|
|Graphical user interface (GUI)||✔||✔|
|Firmware update||network, USB||network, USB|
|Other additional features||IP Control||IP Control|
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.
|Zone audio output||speaker, preout||speaker, preout|
|Zone HDMI output||✔||✔|
|Multi-room control||HEOS App, Denon 2016 AVR Remote||FlareConnect|
|Remote control input/output (IR)||1/1||1/1|
|DC trigger output (12V)||2||2|
Denon AVRX4400H got 9 points for the multichannel surround sound and Pioneer SC-LX502 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 AVRX4400H has Auro-3D on its feature list.
|Dolby (other)||has not||Dolby Digital Plus|
|DTS HD Master||✔||✔|
|DTS (other)||has not||DTS-ES, DTS 96/24, DTS-HD, DTS-EXPRESS|