Question 1

was all set to buy TX-NR636, now 646 comes out! can anyone explain the sig differences? anything make the 646 superior?

Accepted Answer

The NR646 will be able to play DTS:X besides Dolby Atmos via firmware update avaiable "soon" (they'll coexist, just as your current-gen amp switches between True HD and HDMA decoding depending on the content). 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. My advise: if you care for multidimensional sound, get the TX-NR 646 to future-proof yourself. Movies won't ALWAYS use Atmos, they may use DTS:X, too. And X may even become the dominant multidimensional audio format for the next few years (just as DTS-HDMA became the dominant lossless audio format last few years). BUT if you don't care at all for multidimensional 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.

Question 2

On another site a customer said that the zone 2 speakers could be used to make this a 9.2 system. Wrong info?

Accepted Answer

No. Never possible because it only has 7 amplifiers, meaning it can only power 7 speakers at one time.Why bother with Zone 2 outlets at all? I don't always need all 7 channels for watching TV, but I still want to listen to music in the kitchen (while preparing snacks for TV!). I can pre-wire the sound for the kitchen and drop the TV down to 5.1 while rockin' in the kitchen, then lose myself in Atmos or DTS:X sound. While the kitchen solution does not lend itself to a separate amp, Zone 2 can be configured with a "line out" to a vintage receiver (or cheap amp) without sacrificing any speakers in the main zone.The system is simply not designed to support 9 channels. You'll have to shell out a LOT more money for that capability.

Question 3

Will the Onkyo warranty be covered if fullfilled by Amazon but bought from different seller?

Accepted Answer

As long as the seller is an authorized dealer(we most certainly are) you are covered by the Onkyo manufacturer's warranty. If you have a warranty claim you use the seller's name as who you bought the product from, not Amazon.

Question 4

Will Chromecast work on this?

Accepted Answer

Our Chromecast never works with our TX-NR646. So frustrating!!! Has completely ruined our theater experience. Looking for a new receiver that isn't Onkyo.

ASIN	B00WM1V9KU
Audio Encoding	DTS
Audio Output Mode	Surround
Audio Output Type	Speakers
Best Sellers Rank	#528,972 in Electronics ( See Top 100 in Electronics ) #891 in Audio/Video Receivers & Amplifiers
Brand	Onkyo
Color	Black
Compatible Devices	Speaker, Smartphone, Tablet, Personal Computer
Connectivity Technology	Bluetooth, HDMI , Wi-Fi
Connector Type	HDMI
Control Method	App
Controller Type	Control4
Customer Reviews	4.0 out of 5 stars 434 Reviews
Format	WAV, WMA
Global Trade Identification Number	00751398012228
Item Weight	20.7 Pounds
Manufacturer	ONKYO
Mfr Part Number	TX-NR646
Model Number	TX-NR646
Number of Channels	2
Other Special Features of the Product	Equalizer, Pandora, Spotify
Output Wattage	170 Watts
Special Feature	Equalizer , Pandora, Spotify
Supported Internet Services	Pandora
Surround Sound Channel Configuration	7.2
Total HDMI Ports	9
Total Number of HDMI Ports	9
UPC	751398012228
Video Encoding	H.264, H.265/HEVC
Wattage	170 watts
Wireless Technology	Wi-FiBluetoothAirplay

Onkyo TX-NR646 7.2-Channel Network A/V Receiver

Details

Details

Description

Specifications

Reviews

Common Questions