Skip disability assistance statement.

Welcome to our website! As we have the ability to list over one million items on our website (our selection changes all of the time), it is not feasible for a company our size to record and playback the descriptions on every item on our website. However, if you have a disability we are here to help you. Please call our disability services phone line at 812-367-1591 during regular business hours and one of our kind and friendly personal shoppers will help you navigate through our website, help conduct advanced searches, help you choose the item you are looking for with the specifications you are seeking, read you the specifications of any item and consult with you about the products themselves. There is no charge for the help of this personal shopper for anyone with a disability. Finally, your personal shopper will explain our Privacy Policy and Terms of Service, and help you place an order if you so desire.

TX-NR646

Onkyo TXNR646

Features

  • Smooth and easy Bluetooth streaming
  • Dolby Atmos® and DTS:X® - setting sound free
  • Engineered for Hi-Res Audio
  • Apple AirPlay 2

Quick Specs

  • Type: Audio Components
  • Width: 17 1/8"
  • Height: 6 13/16"
  • Depth: 12 15/16"
  • Energy Star Rated: No

See More

 
Image Feature

Smooth and easy Bluetooth streaming

Whatever audio is playing on your phone, tablet, or PC app can be streamed to the receiver with Bluetooth wireless technology. Once the receiver has paired with and remembered your device, it will start playback automatically whenever it detects an incoming Bluetooth audio stream.

Image Feature

Dolby Atmos® and DTS:X® - setting sound free

Dolby Atmos® and DTS:X® formats allow engineers to map sound anywhere in 3D space, effects moving from speaker to speaker all around the room and wrapping your audience in the latest films and games. You can also enjoy your 3D speaker layout with classic titles. Dolby Surround® and DTS® Neural:X find overhead cues in legacy soundtracks and upmix for awesome spatial realism.

Image Feature

Engineered for Hi-Res Audio

Engineered for universal hi-res compatibility and ease of use. It's now remarkably easy to enjoy albums mastered in high-resolution that you've downloaded and stored on your computer or media server. Almost every hi-res and lossless format is supported, from gapless FLAC and WAV to ALAC and WMA. It also handles 11.2 MHz DSD, 192/24 PCM and Dolby® TrueHD formats for the ultimate in depth and clarity.

Image Feature

Apple AirPlay 2

Apple AirPlay 2 lets you effortlessly stream music or podcasts to multiple audio devices throughout your home using any Apple device or by asking Siri - and it all stays in perfect sync. Create multi-room groups or stream to just one device. *Apple Airplay 2 available via future firmware update.

Image Feature

Wi-Fi®, AirPlay, and Built-in Streaming Services

Expect fewer dropouts, faster connection, and less interference over 5 GHz/2.4 GHz Wi-Fi. Access to Spotify®, TIDAL, Deezer, TuneIn, and Pandora® are built into the system GUI- use dedciated apps (where available) or Onkyo Controller to find and play music. Cast from PC and iOS devices from iTunes, together with other supported applications, via AirPlay technology.

Smooth and easy Bluetooth streaming Whatever audio is playing on your phone, tablet, or PC app can be streamed to the receiver with Bluetooth wireless technology. Once the receiver has paired with and remembered your device, it will start playback automatically whenever it detects an incoming Bluetooth audio stream.

Dolby Atmos® and DTS:X® - setting sound free Dolby Atmos® and DTS:X® formats allow engineers to map sound anywhere in 3D space, effects moving from speaker to speaker all around the room and wrapping your audience in the latest films and games. You can also enjoy your 3D speaker layout with classic titles. Dolby Surround® and DTS® Neural:X find overhead cues in legacy soundtracks and upmix for awesome spatial realism.

Engineered for Hi-Res Audio Engineered for universal hi-res compatibility and ease of use. It's now remarkably easy to enjoy albums mastered in high-resolution that you've downloaded and stored on your computer or media server. Almost every hi-res and lossless format is supported, from gapless FLAC and WAV to ALAC and WMA. It also handles 11.2 MHz DSD, 192/24 PCM and Dolby® TrueHD formats for the ultimate in depth and clarity.

Apple AirPlay 2 Apple AirPlay 2 lets you effortlessly stream music or podcasts to multiple audio devices throughout your home using any Apple device or by asking Siri - and it all stays in perfect sync. Create multi-room groups or stream to just one device. *Apple Airplay 2 available via future firmware update.

Wi-Fi®, AirPlay, and Built-in Streaming Services Expect fewer dropouts, faster connection, and less interference over 5 GHz/2.4 GHz Wi-Fi. Access to Spotify®, TIDAL, Deezer, TuneIn, and Pandora® are built into the system GUI- use dedciated apps (where available) or Onkyo Controller to find and play music. Cast from PC and iOS devices from iTunes, together with other supported applications, via AirPlay technology.

Features

  • Smooth and easy Bluetooth streaming
  • Dolby Atmos® and DTS:X® - setting sound free
  • Engineered for Hi-Res Audio
  • Apple AirPlay 2
Features
# Channels 7.2
Power Watts/Ch (6 Ohms 1kHz, 1 Channel Driven, FTC) 170, 0.09% THD
Power Watts/Ch (8 Ohms 20-20kHz, 2 Channels Driven, FTC) 100, 0.08% THD
WRAT (Wide Range Amplifier Technology) Yes
H.C.P.S. (High Current Power Supply) Yes(Massive High Power Transformer)
THX Certified -
Continuous 6 Ohms Rated Yes
Certified 4 Ohms Performance -
Discrete Output Stage Circuitry Yes
3-Stage Inverted Darlington Circuitry -
PUSH-PULL Design Yes
Independent Block Construction (Amp/Preprocessor) -
High-Grade Toroidal Transformer -
Independent Power Supply Yes (x2)
Bi-amp Capability For Front Yes
Dolby Atmos Yes
32-Bit Digital Signal Processing Engine Yes
Dolby Decoder Atmos, True HD, DD Plus
DTS:X Yes
DTS Decoder DTS: X, DTS-HD Master Audio
ONKYO GAME Surround Modes Yes (Rock, Sports, Action, RPG)
VLSC for Noiseless Audio Processing -
THX Processing Mode -
AccuEQ Room Calibration Yes (Advanced)
Phase-Matching Bass Boost Yes (for Deep Bass and Clear Mid-Range)
Direct/Pure Mode Yes /-
Pure Direct Analog Path Mode -
Advanced Music Optimizer Yes (Bluetooth Included)
384K/32 Bit DACs Yes (Asahi Kasei AKM4458)
192K/32 Bit DACs -
192K/24 Bit DACs -
isf Certified Calibration Control -
Audio I/O 7 / 0
Phono Input Yes
Digital Audio IN (OPT/COAX) 2 / 1
Composite Video I/O 3 / 0
Component Video I/O 2 / 0
Front Panel HDMI Yes
Front-Panel A/V -
Front-Panel Optical -
USB Input Yes (Rear)
HDMI I/O 8 / 2
HDMI 4K/60 Hz- Capable HDMI Terminals Yes(HDR Support)
HDCP 2.2 Copy-Protection Compatibility Yes (3 in / 2 out)
HDMI Support for High Dynamic Range Yes
HDMI Support for 3D, Audio Return Channel and CEC Yes
BT.2020 Support Yes
HDMI Support for Deep Color, x.v.Color, LipSync Yes
HDMI Support for DVD-Audio, SACD, Multichannel PCM Yes
InstaPrevue Input Source Prevue -
MHL for Mobile Device Connection -
Composite to Component Video Upconversion -
Analog To HDMI Upconversion Yes (from 480i/576i)
1080p Upscaling -
4K (up to 4096 x 2160) Upscaling -
4K Passthrough Yes
Analog Pre-Outs Subwoofer (x2)
XLR Pre-outs -
18mm Pitch High Grade Pre-outs -
Speaker A/+B -
Powered Zone 2 Yes
Powered Zone 3 -
Zone 2 Line Out Yes (Fixed)
Zone 2 Video Out -
Zone 2 Digital to Analog Audio Conversion Yes (S/PDIF, NET, USB)
Zone 3 Line Out -
Whole House Mode -
Made for iPod, iPhone, iPad Yes
Airplay Yes
Supports Onkyo Remote App Yes (iPod touch/iPhone and Android-Powered Devices)
Internet Radio Capable Yes(Pandora, Spotify, Sirius, Slacker, TuneIn, Deezer)
Spotify Connect Support Yes
Streaming Audio From PC / Network Yes (DLNA, Home Media)
Hi-Res Streaming Audio Formats Yes(Apple Lossless, DSD 2.8/5.6 MHz, Dolby TrueHD, FLAC 192/24, LPCM, Ogg Vorbis, WAV, WMA)
Streaming Audio From USB memory Yes
Wireless Network Yes(Apple Lossless, DSD 2.8/5.6 MHz, Dolby TrueHD, FLAC 192/24, LPCM, Ogg Vorbis, WAV, WMA)
Bluetooth Yes(Built-in)
PC Input (15 pin D-sub) -
RS-232 -
IR Input -
IR Output -
Ethernet Yes
ONKYO-RI System Control Yes
RIHD (Remote Interactive Over HDMI) Yes
12V Trigger -
Pre-Pro/Learning Remote Yes /-
On Screen Remote Programming Yes
Hybrid Standby Function Yes (to Reduce Power Consumption)
Smart Grid-Ready Yes
Auto Speaker Calibration W/Mic. Yes (AccuEQ - Advanced)
OSD Out Yes (Advanced "Home" GUI)
Solid Aluminum Front -
Transparent High-Grade Speaker Terminals -
Detachable AC Cord -
Warranty 2 YEARS

Quick Specs


  • Appearance

  • Type: Audio Components

  • Dimensions

  • Width: 17 1/8"
  • Height: 6 13/16"
  • Depth: 12 15/16"

  • Features

  • Energy Star Rated: No

Professional delivery and installation is available for every product we sell. We would be happy to coordinate delivery and installation for you.

Extended warranties are usually very inexpensive and can save you thousands in the future. It's simple and inexpensive to purchase extended warranties and one of the smartest ways to protect your investment.

Electronics can be large, heavy and expensive. You probably don't have the special tools or expertise needed to fix them in a crisis. If you can spare a few thousand dollars without batting an eyelash for new electronics should they break tomorrow, don't buy a warranty. But if you're like most of us, protect yourself by purchasing inexpensive extended warranties when you buy a new product and save yourself big money in the long run.