The Pioneer Elite SC-LX904 versus Denon AVR-X6400H comparison makes clear all pros and cons of AV receivers. According to the results of our review, Pioneer Elite SC-LX904 received 9.2 points out of 10 possible, and Denon AVR-X6400H was rated 9.4 points. The release date of Elite SC-LX904 is 2019, and AVR-X6400H is 2017. Identified advantages have shown that AVR-X6400H is better over Elite SC-LX904 mainly as a home theater processor.
For the built-in amplifier, the models have rated 10 points out of 10.
The number of channels is equal to the number of possible connected speakers. Both receivers can handle the 11.2-channels configuration.
RMS stands for the actual power of the receiver. The higher this value, the louder the sound can be produced. In terms of RMS power, the models have the same characteristics - 140/8/8 W/Ohm.
|Stereo power (RMS), W/Ohm||140/8||140/8, 250/6|
|Output impedance, Ohm||8||8, 6|
|THD in stereo, %||0.08||0.05|
The score for audio features is 10 of 10 for both receivers.
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)||ES9026PRO 384 KHz/32-bit||AK4458 384 KHz/32-bit|
|Pure direct (straight)||✔||✔|
|Auto speaker calibration||MCACC||Audyssey MultEQ XT32|
|Speaker A/B switching||✔||✔|
|Other audio features||Advanced Sound Retriever, Hi-Res audio||Audyssey Dynamic Volume, Audyssey Dynamic EQ, Audyssey LFC|
The connectivity of competitors in our comparison is equal and was rated 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, AirPlay 2|
|Other streaming services||Deezer, TIDAL, Pandora||Deezer, TIDAL, Pandora, Napster, SiriusXM, TuneIn Radio, iHeart Radio, Sound Cloud|
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, Pioneer Elite SC-LX904 got 9 points, but Denon AVR-X6400H received 10 points.
Pioneer Elite SC-LX904 is equipped with 7/3 HDMI inputs and outputs, and Denon AVR-X6400H has 8/3 HDMI inputs and outputs.
The HDCP encryption protocol is now mandatory for most media devices. This security technology encrypts digital signals from one product to another. HDCP content-encryption protocol is present on Pioneer Elite SC-LX904 in the HDCP 2.3 version, and Denon AVR-X6400H has the HDCP 2.2 version.
|HDMI ARC (Audio Return Channel)||✔||✔|
|HDMI eARC (Enhanced Audio Return Channel)||✔||✔|
|Digital content protection (HDCP)||HDCP 2.3||HDCP 2.2|
|Subwoofer output (LFE)||2||2|
|Headphone output||1 x 6.3||1 x 6.3|
|Optical digital input||3||2|
|Coaxial digital input||2||2|
|Phono (MM) input||✔||✔|
|Front panel connectors||USB, HDMI, phones, setup mic||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 the Elite SC-LX904 were rated 10 out of 10 against the 9 for the AVR-X6400H.
|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||x.v.Color, HLG, BT.2020||HLG|
In terms of evaluating additional features, the Elite SC-LX904 got 9 points, but the AVR-X6400H has 10.
Denon AVR-X6400H has the ECO mode.
|Voice control||Amazon Alexa||Amazon Alexa, Google Assistant, Siri, Josh.AI|
|App control||iPhone, iPad, iPod, Android||iPhone, iPad, iPod, Android, Amazon Kindle|
|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||has not||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||Pioneer Control App, FlareConnect||HEOS App, Denon 2016 AVR Remote|
|Remote control input/output (IR)||1/1||1/1|
|DC trigger output (12V)||2||2|
Pioneer Elite SC-LX904 got 8 points for the multichannel surround sound and Denon AVR-X6400H got 9.
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. Denon AVR-X6400H has Auro-3D on its feature list.
IMAX Enhanced is a licensing and certification program under which home theater devices deliver crisp 4K HDR pictures and powerful sound as it was designed by the IMAX engineers. Only the Elite SC-LX904 licensed by IMAX.
|Dolby (other)||Dolby Digital Plus, Dolby Atmos Height Virtualization||Dolby Digital Plus|
|DTS HD Master||✔||✔|
|DTS (other)||DTS-ES, DTS 96/24, DTS-HD, DTS-EXPRESS||DTS-ES, DTS 96/24, DTS-EXPRESS, DTS Surround|