Along with the growing popularity of custom home theater builds, the comparison of Yamaha AVENTAGE RX-A680 and Onkyo TX-SR494 takes place. According to the results of our review, Yamaha AVENTAGE RX-A680 received 7.5 points out of 10 possible, and Onkyo TX-SR494 was rated 5.5 points. The release date of AVENTAGE RX-A680 is 2018, and TX-SR494 is 2019. Based on the data on the characteristics and features of both models, we can conclude that AVENTAGE RX-A680 has better performance than TX-SR494.
For the built-in amplifier, the devices received different marks - 8 and 7, respectively, on a 10-point scale.
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. The differences between the models in terms of RMS power are significant - for the AVENTAGE RX-A680 this value is 145/6 W/Ohm, and for the TX-SR494 it is 135/6 W/Ohm.
|Stereo power (RMS), W/Ohm||115/8, 145/6||135/6|
|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.
|Digital to analog converter (DAC)||Burr-Brown 384 KHz/32-bit||AKM 384 KHz/32-bit|
|Pure direct (straight)||✔||✔|
|Auto speaker calibration||YPAO||AccuEQ|
|Speaker A/B switching||✖||✖|
|Other audio features||CINEMA DSP 3D, Compressed Music Enhancer, Virtual CINEMA FRONT||Advanced Music Optimizer, Hi-Res audio|
The connectivity of competitors in our comparison is markedly different, Yamaha AVENTAGE RX-A680 scored 8, and Onkyo TX-SR494 scored 5 out of 10.
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 AVENTAGE RX-A680 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)||AirPlay, AirPlay 2||✖|
|Other streaming services||Deezer, TIDAL, Pandora, Napster, SiriusXM, Qobuz||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, both receivers got 6 points on our 10-point scale.
Competitors in our review have 4/1 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 Yamaha AVENTAGE RX-A680.
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 Yamaha AVENTAGE RX-A680 in the HDCP 2.3 version, and Onkyo TX-SR494 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||1|
|Coaxial digital input||2||1|
|Phono (MM) input||✖||✖|
|Front panel connectors||USB, phones, setup mic, AUX||USB, phones|
|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 AVENTAGE RX-A680 were rated 7 out of 10 against the 6 for the TX-SR494.
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 Yamaha AVENTAGE RX-A680.
|HDR (High Dynamic Range)||HDR10||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||✔||✔|
|Analog to HDMI scaling||✖||✖|
|HDMI to HDMI scaling||✔||✖|
|Other video features||DeepColor, x.v.Color, HLG, BT.2020||DeepColor, x.v.Color, HLG, BT.2020|
In terms of evaluating additional features, the AVENTAGE RX-A680 got 10 points, but the TX-SR494 has 6.
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 AVENTAGE RX-A680 can be controlled by voice via Amazon Alexa, Google Assistant. Only the Yamaha AVENTAGE RX-A680 has the ECO mode.
|Voice control||Amazon Alexa, Google Assistant||✖|
|App control||iPhone, iPad, iPod, Android||iPhone, iPad, iPod, Android|
|Tuner||AM, FM||AM, FM|
|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.
|Zone audio output||speaker||speaker|
|Zone HDMI output||✖||✖|
|Multi-room control||MusicCast||has not|
|Remote control input/output (IR)||0/0||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 Digital Plus, Dolby Atmos Height Virtualization|
|DTS HD Master||✔||✔|
|DTS (other)||DTS-ES, DTS 96/24, DTS-HD, DTS-EXPRESS, DTS-Surround, DTS-Neo:6||DTS-ES, DTS 96/24, DTS-HD, DTS-EXPRESS|