Onkyo TX-NR686 vs Denon AVR-X3700H

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Votes 1 1
Rating 5 5

TX-NR686 vs AVR-X3700H comparison chart

Onkyo TX-NR686 vs Denon AVR-X3700H review

Onkyo TX-NR686
vs
Denon AVR-X3700H

The Onkyo TX-NR686 vs Denon AVR-X3700H comparison makes sense because it shows what devices in their segments can offer. According to the results of our review, Onkyo TX-NR686 received 7.2 points out of 10 possible, and Denon AVR-X3700H was rated 8.8 points. The release date of TX-NR686 is 2018, and AVR-X3700H is 2020. AVR-X3700H is more suitable as the heart of home theater system than its opponent - TX-NR686.

Main advantages Onkyo TX-NR686 over Denon AVR-X3700H

  • We do not know advantages

Main advantages Denon AVR-X3700H over Onkyo TX-NR686

  • More channels, namely 9, makes this receiver more profitable than its 7-channel competitor.
  • Include HDMI eARC function.
  • 8K/60Hz signal pass-through is available.

Amplifiers

For the built-in amplifier, the devices received different marks - 7 and 8, respectively, on a 10-point scale.

TX-NR686
7
AVR-X3700H
8

The number of channels is equal to the number of possible connected speakers. The Onkyo TX-NR686 supports 7.2-channels sound, but Denon AVR-X3700H supports a 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-NR686 this value is 165/6 W/Ohm, and for the AVR-X3700H it is 135/6 W/Ohm.

TX-NR686 AVR-X3700H
Channels7.29.2
Stereo power (RMS), W/Ohm165/6105/8, 135/6
Output impedance, Ohm68, 6
Frequency response10Hz-100KHz10Hz-100KHz
THD in stereo, %0.080.08

Audio features

The score for audio features is 9 of 10 for both receivers.

TX-NR686
9
AVR-X3700H
9

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. Denon AVR-X3700H can work with the main and additional set of speakers - and switch between them.

TX-NR686 AVR-X3700H
Digital to analog converter (DAC)VLSC 384 KHz/32-bitN/A
Bi-amping
Pure direct (straight)
Auto speaker calibrationAccuEQAudyssey MultEQ XT32
Speaker A/B switching
Other audio featuresAdvanced Music Optimizer, Theater-Dimensional, Hi-Res audioAudyssey Dynamic Volume, Audyssey Dynamic EQ, Audyssey LFC, Hi-Res audio

Connectivity

The connectivity of competitors in our comparison is markedly different, Onkyo TX-NR686 scored 8, and Denon AVR-X3700H scored 10 out of 10.

TX-NR686
8
AVR-X3700H
10

Bluetooth connection is now one of the main communication protocols for the receiver's control or even music broadcasting.

DLNA is the perfect way to use your local cloud storage to stream movies and music directly to a TV. You can use the DLNA protocol only with Denon AVR-X3700H.

TX-NR686 AVR-X3700H
Wi-Fi2.4/5GHz2.4/5GHz
USB1 (USB 2.0)1 (USB 2.0)
Bluetooth
Ethernet (RJ45)11
DLNA
MHL

Streaming services

Now music streaming services are gaining more and more popularity. They allow users to listen to millions of songs by subscription.

TX-NR686 AVR-X3700H
Apple Music (AirPlay)AirPlayAirPlay, AirPlay 2
Amazon Music
Spotify
Other streaming servicesDeezer, TIDAL, TuneIn RadioDeezer, TIDAL, Pandora, SiriusXM, Qobuz, TuneIn Radio

Extensive connections

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-NR686 got 8 points, but Denon AVR-X3700H received 9 points.

TX-NR686
8
AVR-X3700H
9

Onkyo TX-NR686 is equipped with 7/2 HDMI inputs and outputs, and Denon AVR-X3700H has 7/3 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 on Denon AVR-X3700H.

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-NR686 in the HDCP 2.2 version, and Denon AVR-X3700H has the HDCP 2.3 version.

TX-NR686 AVR-X3700H
HDMI input/output7/27/3
HDMI ARC (Audio Return Channel)
HDMI eARC (Enhanced Audio Return Channel)
HDMI CEC
Digital content protection (HDCP)HDCP 2.2HDCP 2.3
Subwoofer output (LFE)22
Headphone output1 x 6.31 x 6.3
Optical digital input22
Coaxial digital input12
Composite input23
Component input/output2/02/1
Phono (MM) input
Front panel connectorsHDMI, phones, setup micUSB, phones, setup mic
Multi channel preamp output

Video features

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-NR686 were rated 7 out of 10 against the 8 for the AVR-X3700H.

TX-NR686
7
AVR-X3700H
8

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-NR686 works with the 4K/60Hz video, and the AVR-X3700H has the 4K/120Hz.

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 on Denon AVR-X3700H.

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 with Denon AVR-X3700H.

TX-NR686 AVR-X3700H
HDR (High Dynamic Range)HDR10HDR10
4K signal pass-through4K/60Hz4K/120Hz
8K signal pass-through8K/60Hz
HDMI signal pass-through
3D signal pass-through
HDMI pass-through in standby mode
Video conversion
Analog to HDMI scaling
HDMI to HDMI scaling
Dolby Vision
Other video featuresDeepColor, x.v.ColorHLG, BT.2020, Dynamic HDR

Additional features

In terms of evaluating additional features, the TX-NR686 got 7 points, but the AVR-X3700H has 10.

TX-NR686
7
AVR-X3700H
10

Denon AVR-X3700H has the ECO mode.

TX-NR686 AVR-X3700H
Voice controlGoogle AssistantAmazon Alexa, Google Assistant, Siri, Josh.AI
App controliPhone, iPod, AndroidiPhone, iPad, iPod, Android
Displayfluorescentcolour OSD
TunerAM, FMAM, FM
Sleep timer
Auto power off
ECO mode
Graphical user interface (GUI)
Setup assistant
Firmware updatenetwork, USBnetwork, USB
Other additional featuresIP ControlIP Control, Web Control, RS-232 Control, App Control

Multi-room

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.

TX-NR686 AVR-X3700H
Multi-room zones22
Zone audio outputspeaker, preoutspeaker, preout
Zone HDMI output
Multi-room controlOnkyo Controller app, FlareConnectHEOS App, Denon 2016 AVR Remote
RS-23201
Remote control input/output (IR)0/01/1
DC trigger output (12V)01

Multichannel surround

Onkyo TX-NR686 got 7 points for the multichannel surround sound and Denon AVR-X3700H got 8.

TX-NR686
7
AVR-X3700H
8

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. The AVR-X3700H licensed by IMAX.

TX-NR686 AVR-X3700H
Dolby Atmos
Dolby TrueHD
Dolby Surround
Dolby (other)Dolby Digital PlusDolby Digital Plus, Dolby Atmos Height Virtualization
DTS:X
DTS HD Master
DTS Virtual:X
DTS Neural:X
DTS (other)DTS-ES, DTS 96/24, DTS-HD, DTS-EXPRESSDTS-ES, DTS 96/24, DTS-HD, DTS-EXPRESS
Auro-3D
IMAX Enhanced
Multichannel stereo
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