Let's make the Onkyo TX-NR5100 versus Onkyo TX-NR686 comparison. According to the results of our review, Onkyo TX-NR5100 received 7.3 points out of 10 possible, and Onkyo TX-NR686 was rated 7.2 points. The release date of TX-NR5100 is 2021, and TX-NR686 is 2018. After comparison, it will become clear that among these two devices, the TX-NR5100 is more suitable for the role of the heart of home theater system.
For the built-in amplifier, the models have rated 7 points out of 10.
The number of channels is equal to the number of possible connected speakers. Both receivers can handle the 7.2-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 - 80/8, 165/6/6 W/Ohm.
|Stereo power (RMS), W/Ohm||80/8, 165/6||165/6|
|Output impedance, Ohm||8, 6||6|
|THD in stereo, %||0.08||0.08|
The score for audio features is 9 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.
Speaker A/B switching allows you to change between the main and sub speaker set. Onkyo TX-NR5100 can work with the main and additional set of speakers - and switch between them.
|Digital to analog converter (DAC)||384 KHz/32-bit||VLSC 384 KHz/32-bit|
|Pure direct (straight)||✔||✔|
|Auto speaker calibration||AccuEQ||AccuEQ|
|Speaker A/B switching||✔||✖|
|Other audio features||Advanced Music Optimizer, Hi-Res audio, Dynamic Audio Amplification, CinemaFILTER||Advanced Music Optimizer, Theater-Dimensional, Hi-Res audio|
The connectivity of competitors in our comparison is markedly different, Onkyo TX-NR5100 scored 9, and Onkyo TX-NR686 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, SiriusXM, Napster, SoundCloud||Deezer, TIDAL, 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, Onkyo TX-NR5100 got 6 points, but Onkyo TX-NR686 received 8 points.
Onkyo TX-NR5100 is equipped with 4/2 HDMI inputs and outputs, and Onkyo TX-NR686 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 Onkyo TX-NR5100.
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 Onkyo TX-NR5100 in the HDCP 2.3 version, and Onkyo TX-NR686 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||1||2|
|Coaxial digital input||1||1|
|Phono (MM) input||✔||✔|
|Front panel connectors||phones, setup mic, AUX||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 the TX-NR5100 were rated 8 out of 10 against the 7 for the TX-NR686.
With the 4K pass-through feature, the AV receiver sends "native" 4K signals to a 4K TV from a video source without any processing. The TX-NR5100 works with the 4K/120Hz video, and the TX-NR686 has the 4K/60Hz.
The AV receiver passes "native" 8K signals from a video source to 8K TV without any encoding, with the 8k pass-through features. The 8K path-through is available only on Onkyo TX-NR5100.
Most of the AV receivers have a video scaling function, it is the process of reformatting the video signal to a higher resolution without losing the quality of the image. Upscaling the video signal resolution is possible only with Onkyo TX-NR5100.
|HDR (High Dynamic Range)||HDR10+||HDR10|
|4K signal pass-through||4K/120Hz||4K/60Hz|
|8K signal pass-through||8K/60Hz||✖|
|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||DeepColor, x.v.Color, HLG, BT.2020, LipSyn, Deep Color||DeepColor, x.v.Color|
In terms of evaluating additional features, the TX-NR5100 got 10 points, but the TX-NR686 has 7.
Only the Onkyo TX-NR5100 has the ECO mode.
|Voice control||Amazon Alexa, Google Assistant, Siri, Josh.AI||Google Assistant|
|App control||iPhone, iPad, iPod, Android||iPhone, iPod, Android|
|Tuner||AM, FM||AM, FM|
|Auto power off||✔||✖|
|Graphical user interface (GUI)||✔||✔|
|Firmware update||network, USB||network, USB|
|Other additional features||Web Control, App 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.
|Multi-room zones||has not||2|
|Zone audio output||has not||speaker, preout|
|Zone HDMI output||has not||✖|
|Multi-room control||FlareConnect||Onkyo Controller app, FlareConnect|
|Remote control input/output (IR)||0||0/0|
|DC trigger output (12V)||0||0|
For the ability to create multichannel surround sound, each of the receivers received 7 points out of 10.
|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-HD, DTS-EXPRESS|