ONKYO tx-nr646 Specification Sheet

Page of 2
2015 NEW PRODUCT RELEASE
TX-NR646
   
7.2-Channel Network A/V Receiver
BLACK
Home Theater at the Cutting Edge
Experience the cutting edge of home theater with the 7.2-channel TX-NR646 Network A/V Receiver, the first in its class to feature the 
revolutionary DTS:X
 and Dolby Atmos
®
 multi-dimensional audio formats. Onkyo’s high-current amplification system drives your speakers to 
reproduce soundtracks with maximum impact and fidelity at 170 W/Ch. UltraHD video capability is equally impressive, with eight latest spec 
HDMI
®
  terminals including dedicated HDCP 2.2 compatible inputs for premium 4K video content and two HDMI outputs for video in separate 
rooms. The TX-NR646’s high-grade 384 kHz/32-bit AKM DAC not only brings movies to life, but your Hi-Res and streamed music as well. 
Conveniently stream music over built-in Wi-Fi
®
, Bluetooth, AirPlay, or internet music services including Spotify Connect and Pandora. Use the free 
Onkyo Remote app to stream audio stored on your mobile device, browse and select tracks from online services, and control playback in two 
zones. Plus, for fans of vinyl, the TX-NR646 has a phono equalizer input to connect a turntable. 
• DTS:X
 Compatible
• Supports Dolby Atmos
®
 up to 5.1.2 Channels
• 170 W per Channel
• Hi-Current Amp Design for Authentic Sound Reproduction
•     HDMI
®
 8 In / 2 Out Including 1 Front  
(4K UltraHD / HDCP 2.2 / 
4:4:4 Color
)
• Bluetooth Audio / Wi-Fi
®
 with Pandora, Spotify, and AirPlay
• DSD 5.6 MHz, FLAC 192 kHz/24-bit Hi-Res Audio Capable
• 384 kHz/32-bit Hi-Grade DAC
• AccuEQ Room Acoustic Calibration
ADVANCED FEATURES
• New DTS:X
 New Generation Sound Format Ready
• Supports Dolby Atmos
®
 Format for Exciting Multidimensional Sound
• 
   4K/60 Hz-Capable HDMI
®
 Terminals for UltraHD 
Entertainment*
1
, including HDR & 4:4:4 Color Space
•    Supports HDCP 2.2 for Future 4K/Full HD Video Streaming and 
Broadcast*
2
• Built-in Wi-Fi
®
 Certified Wireless LAN Capability
•    Bluetooth Version 2.1 + EDR Capability (Compatible Profile: A2DP v1.2, 
AVRCP v1.3) with Advanced Music Optimizer DSP Technology
•    Internet Radio and Music Streaming Subscription Services Included 
(TuneIn Radio, Pandora
®
, Slacker
, SiriusXM Internet Radio
®
, Spotify,  
and Deezer)*
3
•    Playback Compressed, Lossless, and Hi-Res Audio via Local Network 
(MP3, WMA, WMA Lossless, FLAC, WAV, Ogg Vorbis, AAC, Apple 
Lossless, DSD 5.6 MHz, LPCM*
4
, and Dolby
®
 TrueHD)
• Proprietary AccuEQ Room Calibration with Mic Included
•    Advanced Music Optimizer to Improve Compressed Digital Audio 
Quality (Bluetooth Audio Included)
•    Control and Stream with Free Onkyo Remote Streaming Apps for  
iPod touch
®
/iPhone
®
*
5
 and Android
 Devices*
6
• Phase Matching Bass Boost for Deep Bass and Clear Mid-Range
•    Powered Zone 2 and Zone 2 Line-Out for Distributed Audio Playback 
in Another Room
• Bi-Amping Capability for Front Channels
*1 6G video is supported on HDMI inputs 1/2/3, Main Out, and Sub Out. *2 HDCP 2.2 is 
supported on HDMI inputs 1/2/3, Main Out, and Sub Out. *3 Availability of services depends 
on region. Some services may require a paid subscription and firmware update. Availability of 
third-party services advertised here is accurate at the time of publication, but may be subject 
to change without notice. *4 LPCM is supported via DLNA only. *5 Compatible with iPod touch 
(3rd generation or later) and iPhone 3GS or later. All models require iOS 4.2 or later.  *6 Requires 
Android 2.1 or later. 
AMPLIFIER FEATURES
•    170 W/Ch (6 Ohms, 1 kHz, 0.9% THD, 1 Channel Driven, FTC); 
100 W/Ch (8 Ohms, 20 Hz–20 kHz, 0.08% THD, 2 Channels Driven, 
FTC)
• WRAT (Wide Range Amplifier Technology)
• H.C.P.S. (High Current Power Supply) Massive High Power Transformer
• Discrete Output Stage Circuitry 
• Optimum Gain Volume Circuitry
•    PLL (Phase Locked Loop) Jitter-Cleaning Circuit Technology for  
S/PDIF Audio
PROCESSING FEATURES
•     HDMI
®
 Support for 4K/60 Hz 
and 4:4:4 Color Space, 
3D,  Audio Return Channel, DeepColor
, x.v.Color
, LipSync, 
Dolby Atmos
®
, Dolby
®
 TrueHD,  DTS:X
, DTS-HD Master Audio
DVD-Audio, Super Audio CD, Multichannel PCM, and CEC
• AK4458 384 kHz/32-bit DAC (8 Channels x 1)
• Dual 32-bit Digital Signal Processing Engines
• 4 DSP Modes for Gaming: Rock, Sports, Action, and RPG 
• Theater-Dimensional Virtual Surround Function
• CinemaFILTER
• Direct Mode
• Double Bass Function
• Non-Scaling Configuration
• A-Form Listening Mode Memory 
 
 
CONNECTION FEATURES
• 8 HDMI
®
 Inputs (1 Front/ 7 Rear) and 2 Outputs
• USB Port (Rear) (5 V, 1 A) 
• Mass Storage Class USB Memory Playback Capability
• 2 Component Inputs
• 3 Composite Video Inputs
• 3 Digital Audio Inputs (2 Optical and 1 Coaxial)
• 8 Analog Audio Inputs 
• Phono Input for Turntable Connection
• 2 Parallel Subwoofer Pre-Outs
• Location Numbered Speaker Terminal
• 1/4" Headphone Jack 
OTHER FEATURES
•     Crossover Adjustment for Each Channel  
(40/50/60/70/80/90/100/120/150/200 Hz)
• A/V Sync Control (Up to 500 ms in 10 ms Steps at 48 kHz)
•    Graphical Overlaid On-Screen Display (OSD) via HDMI 
with Quick Set-Up
• Hybrid Standby Function with HDMI Passthrough 
• Tone Control (Bass/Treble)
• 3-Mode Display Dimmer (Normal/Dim/Dimmer)
• 40 FM/AM Random Presets
• Certified with DLNA Version 1.5
• Firmware Updates via Ethernet and USB
• RIHD (Remote Interactive Over HDMI) for System Control
• Preprogrammed RI (Remote Interactive) Remote Control
HIGHLIGHTS