Onkyo TX-NR656 vs Onkyo TX-NR646

Onkyo TX-NR646 vs Onkyo TX-NR656 - which one is the best

I have studied user reviews and checked different forums as well as official websites to provide you with accurate information that will help you choose the best model for you. Both models are great, but there are still some differences that should not be ignored. I want to pay attention to the most important features of these two models.

Onkyo TX-NR646 – a perfect device with many functions. What else do you need?

The NR646 will be able to play DTS:X besides Dolby Atmos via a firmware update available "soon". No such update is planned for the NR636. What this means is, the TX-NR636 will give you full Dolby Atmos multidimensional sound from Atmos-enabled discs (as well as True HD/lossy Dolby tracks) , but will produce only DTS-HDMA 7.1 tracks (and its DTS lossy variants) from DTS:X discs.

Movies won't ALWAYS use Atmos, they may use DTS:X, too. And X may even become the dominant multi-dimensional audio format for the next few years. But if you don't care at all for multi-dimensional audio/ceiling & reflective speakers and stuff, there are some other great amps on this same price range that don't feature Atmos/X but compensate on power/other features to give you a better bang for your buck.

Onkyo TX-NR656 7.2 Channel Network A/V Receiver

Great sound, very clean, supports 4k 60fps,HDR 10, PlayStation 4 and PRO compatible, Atmos and DTS X for object-based surround (3D audio), more than enough power for a middle to large rooms, two wireless antenna, wireless AC blazing fast wireless speed and supports multiple digital radio stations like: Spotify, Sirius Radio etc.

Easy to follow and read a menu, very straightforward not overly complex. Has two menu settings 'quick menu' for basic controls: subwoofer levels, on and off calibration settings. The more compact remote which supports fast sound mode switching for movies, games and music. Keep pressing the button it cycles through various built-in modes.Still getting firmware updates: latest one was Feb 23 which added: Support for FireConnect and enabled streaming from Network.

Onkyo TX-NR646 vs Onkyo TX-NR656 - What is the best option for you?

These two models have similar names but they are completely different. They are able to play the most audio formats, they have powerful decoders. However, Onkyo TX-NR656 is more powerful and it is more advanced as the next version of a device. It does not have some connector types and that is not a big deal, especially if you do not have devices that use those kinds of connectors.

If you need a modern super powerful device, then Onkyo TX-NR656 is for you. If you have some old devices and the power output is not that important for you, then consider buying Onkyo TX-NR646.