Being able to compare Onkyo TX-SR494 and Marantz SR8015 gave us an insight into what of them would be better for home theater configuration. According to the results of our review, Onkyo TX-SR494 received 5.5 points out of 10 possible, and Marantz SR8015 was rated 9.8 points. The release date of TX-SR494 is 2019, and SR8015 is 2020. SR8015 is more performable in terms of audio broadcast than the TX-SR494.
For the built-in amplifier, the devices received different marks - 7 and 10, respectively, on a 10-point scale.
The number of channels is equal to the number of possible connected speakers. The Onkyo TX-SR494 supports 7.2-channels sound, but Marantz SR8015 supports a 11.2-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 SR8015 this value is 175/6 W/Ohm, and for the TX-SR494 it is 135/6 W/Ohm.
|Stereo power (RMS), W/Ohm||135/6||140/8, 175/6|
|Output impedance, Ohm||6||8, 6|
|THD in stereo, %||0.08||0.05|
The score for audio features is 9 of 10 for both receivers.
Speaker A/B switching allows you to change between the main and sub speaker set. Marantz SR8015 can work with the main and additional set of speakers - and switch between them.
|Digital to analog converter (DAC)||AKM 384 KHz/32-bit||N/A|
|Pure direct (straight)||✔||✔|
|Auto speaker calibration||AccuEQ||Audyssey MultEQ XT32|
|Speaker A/B switching||✖||✔|
|Other audio features||Advanced Music Optimizer, Hi-Res audio||Audyssey Dynamic Volume, Audyssey Dynamic EQ, Audyssey LF, Compressed Audio Enhancer(MDAX2), Hi-Res audio|
The connectivity of competitors in our comparison is markedly different, Onkyo TX-SR494 scored 5, and Marantz SR8015 scored 10 out of 10.
Wired internet connection via RJ45 allows receiver faster connection than wireless or even use NAS storages. Wired connection via RJ45 is possible in the SR8015 only.
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 Marantz SR8015.
|USB||1 (USB 2.0)||1 (USB 2.0)|
|Apple Music (AirPlay)||✖||AirPlay, AirPlay 2|
|Other streaming services||has not||Deezer, TIDAL, Pandora, SiriusXM, Napster, SoundCloud|
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-SR494 got 6 points, but Marantz SR8015 received 10 points.
Onkyo TX-SR494 is equipped with 4/1 HDMI inputs and outputs, and Marantz SR8015 has 8/3 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 Marantz SR8015.
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-SR494 in the HDCP 2.2 version, and Marantz SR8015 has the HDCP 2.3 version.
Connecting a vinyl player or phonograph is possible using a Phono input which is represented by mini-jack or RCA connectors. Only the SR8015 has a Phono interface.
|HDMI ARC (Audio Return Channel)||✔||✔|
|HDMI eARC (Enhanced Audio Return Channel)||✖||✔|
|Digital content protection (HDCP)||HDCP 2.2||HDCP 2.3|
|Subwoofer output (LFE)||2||2|
|Headphone output||1 x 6.3||1 x 6.3|
|Optical digital input||1||2|
|Coaxial digital input||1||2|
|Phono (MM) input||✖||✔|
|Front panel connectors||USB, phones||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 TX-SR494 were rated 6 out of 10 against the 10 for the SR8015.
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-SR494 works with the 4K/60Hz video, and the SR8015 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 Marantz SR8015.
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 Marantz SR8015.
|HDR (High Dynamic Range)||HDR10||HDR10|
|4K signal pass-through||4K/60Hz||4K/120Hz|
|8K signal pass-through||✖||8K/60Hz|
|HDMI signal pass-through||✔||✔|
|3D signal pass-through||✔||✔|
|HDMI pass-through in standby mode||✔||✔|
|Video conversion||✖||analog to HDMI|
|Analog to HDMI scaling||✖||✔|
|HDMI to HDMI scaling||✖||✔|
|Other video features||DeepColor, x.v.Color, HLG, BT.2020||HLG, BT.2020, Dynamic HDR|
In terms of evaluating additional features, the TX-SR494 got 6 points, but the SR8015 has 10.
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 SR8015 can be controlled by voice via Amazon Alexa, Google Assistant, Siri, Josh.AI. Marantz SR8015 has the ECO mode.
|Voice control||✖||Amazon Alexa, Google Assistant, Siri, Josh.AI|
|App control||iPhone, iPad, iPod, Android||iPhone, iPad, iPod, Android|
|Tuner||AM, FM||AM, FM|
|Auto power off||✔||✔|
|Graphical user interface (GUI)||✔||✔|
|Firmware update||USB||network, USB|
|Other additional features||has not||IP Control, Web Control, RS-232 Control, App Control|
|Zone audio output||speaker||speaker, preout|
|Zone HDMI output||✖||✔|
|Multi-room control||has not||Marantz 2016 AVR Remote, HEOS App|
|Remote control input/output (IR)||0/0||1/1|
|DC trigger output (12V)||0||2|
Onkyo TX-SR494 got 7 points for the multichannel surround sound and Marantz SR8015 got 10.
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. Marantz SR8015 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. The SR8015 licensed by IMAX.
|Dolby (other)||Dolby Digital Plus, Dolby Atmos Height Virtualization||Dolby Digital Plus, Dolby Atmos Height Virtualization|
|DTS HD Master||✔||✔|
|DTS (other)||DTS-ES, DTS 96/24, DTS-HD, DTS-EXPRESS||DTS 96/24, DTS-HD, DTS-EXPRESS|