Denon AVR-S710W Vs Onkyo TX-NR646

A lot of people have gotten confused in choosing between Denon AVR-S710W and Onkyo TX-NR646. These 7.2-channel A/V receivers share some similarities and are available in a similar price range. Both Denon AVR-S710W and Onkyo TX-NR646 are very popular on the market. Since both models do support 4K Ultra HD with 60 Hz frame rate, HDCP 2.2, and also various online services, it is indeed tricky to choose one out of the two. Well, let us see the comparisons below carefully before making a decision!


If you have ever gotten the chance to try out both products, you may have noticed that you need to turn up the volume quite considerably higher with Denon AVR-S710W compared to with Onkyo TX-NR646 in order to be able to hear anything. This is generally true. This is because Onkyo TX-NR646 has higher output power than Denon AVR-S710W. Onkyo TX-NR646 comes with 100 Watts of power per channel, whereas Denon AVR-S710W only has 80 Watts of power per channel. Therefore, Onkyo TX-NR646 can deliver louder sounds than Denon AVR-S710W at a given volume level.

Both models have the frequency response range of 20 Hz – 20 kHz, so they can deliver similar lows, mids, and highs just as equally well. However, you will find that Denon AVR-S710W has a slightly better surround performance than Onkyo TX-NR646. The Denon receiver is able to deliver punchier and more solid sounds to immerse you, thanks to the smarter Audyssey MultEQ auto calibration that configures every connected speaker according to the acoustics of the room more properly. See also: Denon AVR-S710W Vs AVR-S720W.

Both models have the Zone 2 multi-room capability, allowing you to build a separate audio system in a different room. However, you need to keep in mind that the Denon receiver does not come with the preamp multi-room audio output. You may need a separate amp if you are planning to use Zone 2 with Denon AVR-S710W. Meanwhile, Onkyo TX-NR646 comes complete with the preamp multi-room audio output.

Both models support Dolby Atmos up to 5.1.2 channels, and both are also DTS:X-ready via the firmware update. Of course, both models have built-in Bluetooth and Wi-Fi. They are compatible with various online services such as Airplay, Pandora, and Spotify.

Onkyo TX-NR646 comes with an abundance of connectivity options. Most notably, it features 8 HDMI inputs and 2 HDMI monitor outputs. Onkyo TX-NR646 also has the unique capability to convert composite or component video into HDMI. Meanwhile, Denon AVR-S710W only has 6 HDMI inputs and 1 HDMI monitor output.

Denon AVR-S710W Vs Onkyo TX-NR646

NameDenon AVR-S710WOnkyo TX-NR646
NameDenon AVR-S710WOnkyo TX-NR646
Features- 7.2-channel A/V receiver with 75W per channel - 3D and 4K Ultra HD/60Hz full rate pass-through with 4:4:4 color resolution. 6 HDMI inputs (incl. 1 front) with full HDCP 2.2 support - Built-in Wi-Fi and Bluetooth - Dolby Atmos (up to 5.1.2), DTS:X ready (via firmware update), Instant content: Airplay, Android push playback, Pandora, Spotify Connect, SiriusXM, DLNA 1.5 - IP control capability with the HEOS Link turns any stereo system into a wireless zone (HEOS LINK sold separately)- DTS:X is a next-generation object-based surround sound technology that includes height to deliver a fully-immersive listening experience - Supports Dolby Atmos Up to 5.1.2 Channels for captivating, multidimensional sound - 4K/60 Hz-Capable HDMI 2.0a Terminals for UltraHD and supports HDCP 2.2 for premium 4K/Full HD video streaming and broadcast - Built-in Bluetooth, Wi-Fi and Airplay with Pandora and Spotify to stream virtually any audio from your smartphone, tablet, or PC for clear and powerful sound
Ratings4.0 out of 5.0 stars4.0 out of 5.0 stars

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If you want to get the best audio quality, you may want to stick with Denon AVR-S710W for the Audyssey MultEQ. However, if you plan on using Zone 2, you may prefer Onkyo TX-NR646 for the built-in preamp multi-room audio output and extra connection ports.

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