Onkyo TX-NR646 7.2-Channel Network AV Receiver

Onkyo TX-NR646 7.2-Channel Network AV Receiver

Onkyo TX-NR646 7.2-Channel Network AV Receiver

B&H # ONTXNR646 MFR # TX-NR646
Onkyo TX-NR646 7.2-Channel Network AV Receiver

Onkyo TX-NR646 7.2-Channel Network AV Receiver

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Product Highlights

  • 100W Per Channel at 8 Ohms
  • AccuEQ Room Acoustic Calibration
  • Built-In Wi-Fi, Bluetooth, and AirPlay
  • 4K Video Support via HDMI 2.0a
  • DLNA and Internet Music Streaming
  • 8 x HDMI-In / 2 x HDMI-Out
  • DTS:X Surround Sound Compatible
  • Dolby Atmos up to 5.1.2-Channel Support
  • Powered Zone 2 and Speaker Bi-Amping
  • Hi-Resolution Audio Support
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Onkyo TX-NR646 overview

  • 1Description

The Onkyo TX-NR646 7.2-Channel Network AV Receiver delivers wireless audio streaming and powerful multi-channel audio. This receiver features Onkyo's WRAT amplifier technology and delivers up to 100W per channel at 8 ohms for robust audio playback. Built-in AirPlay and Bluetooth allow you to wirelessly stream music from compatible audio sources such as computers, MP3 players, smartphones, and tablets. Onboard Wi-Fi and Ethernet connectivity gives you the ability to stream music from Internet radio sources and use DLNA technology to share content with compatible networked devices. Two Wi-Fi antennas are on the rear of the receiver for optimized signal range.

The Onkyo TX-NR646 has eight HDMI 2.0a inputs for interfacing audio and video sources, and the pass-through of 3D and 4K video sources. There's also a USB port for interfacing additional audio sources. Onkyo also offers a free remote app for controlling your receiver from a smartphone or tablet. Built-in high-resolution audio support allows you to take advantage of dynamic surround sound formats like DTS-HD Master Audio and Dolby TrueHD.

AccuEQ Room Calibration
With the included microphone, Onkyo proprietary AccuEQ technology measures and corrects speaker distances, levels, crossovers, and frequency response from one convenient listening position to ensure clear and cohesive surround-sound.
DTS:X Compatible
DTS:X is an object-based surround sound technology that includes height to deliver a fully-immersive listening experience to your living room.
Dolby Atmos Support
Using optional height speakers placed in an elevated position, Dolby Atmos produces room-filling multi-dimensional sound.
Hi-Current Amp Design
High instantaneous current enhances speaker control for accurate and dynamic audio reproduction.
Hi-Resolution Audio Support
This receiver supports high-resolution FLAC 192 kHz/24-bit and 96 kHz/24-bit albums (including 5.6 MHz DSD playback) on PC or NAS
Advanced Features
  • 4K/60 Hz-capable 4:4:4 HDMI 2.0a terminals for Ultra HD entertainment
  • Supports HDCP 2.2 for 4K/Full HD video streaming and broadcasts
  • Bluetooth version 2.1 + EDR capability (compatible profile: A2DP v1.2, AVRCP v1.3) with Advanced Music Optimizer DSP technology
  • Advanced Music Optimizer to improve the sound quality of compressed digital audio files
  • Internet radio and music streaming subscription services included (TuneIn Radio, Pandora, Slacker, SiriusXM Internet Radio, Spotify, and Deezer)
  • Playback compressed, lossless, and high-resolution audio via local network (MP3, WMA, WMA lossless, FLAC, WAV, Ogg Vorbis, AAC, Apple lossless, DSD 5.6 MHz, LPCM, and Dolby TrueHD)
  • Control and stream with the free Onkyo remote streaming apps for iPod touch/iPhone 5 and Android devices
  • PM bass boost for deep bass and clear mid-range
  • Powered zone 2 and zone 2 line-outs for distributed audio playback in another room
  • Whole house mode for synchronized house-wide audio
  • Bi-amping capability for front channels
  • 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
  • HDMI for 4K/60 Hz Video, 3D, Audio Return Channel, Deep Color, x.v.Color, Lip Sync, Dolby Atmos, Dolby TrueHD, DTS-HD Master Audio, DTS:X, DVD-Audio, Super Audio CD, Multichannel PCM, and CEC
  • AK4458 384 kHz/32-bit digital-to-analog converters (8-channels x 1)
  • Dual 32-bit digital signal processing engines
  • Dolby TrueHD and DTS-HD Master Audio decoding
  • 4 DSP Modes for Gaming: Rock, Sports, Action, and RPG
  • Theater-dimensional virtual surround function
  • Direct mode
  • Double bass function
  • Non-scaling configuration
  • A-form listening mode memory
  • CinemaFilter
  • USB port for mass-storage-class USB memory audio playback capability
  • Phono input for turntable connection
  • 2 parallel subwoofer pre-outs
Additional Features
  • Graphical overlaid on-screen display (OSD) via HDMI with quick set-up
  • Hybrid standby with HDMI pass-through
  • Independent crossover adjustment for each channel (40, 50, 60, 70, 80, 90, 100, 120, 150, 200 Hz)
  • A/V sync control (up to 500 ms at 48 kHz)
  • Smart grid-ready
  • Tone control (bass/treble)
  • 3-mode display dimmer (normal/dim/dimmer)
  • 40 FM/AM random presets
  • Firmware updates via Ethernet and USB
  • RIHD (Remote Interactive Over HDMI) for system control
  • Preprogrammed RI (Remote Interactive) remote control
In the Box
Onkyo TX-NR646 7.2-Channel Network AV Receiver
  • Indoor FM Antenna
  • AM Loop Antenna
  • Speaker Setup Microphone
  • Remote Control
  • 2 x AA Batteries
  • Limited 2-Year Warranty
  • Table of Contents
    • 1Description

    Onkyo TX-NR646 specs

    Channels 7.2
    Power Output All Channels
    170 W per channel (6 ohms, 1 kHz, 0.9% THD, 1-channel driven, FTC)
    100 W per channel (8 ohms, 20 Hz - 20 kHz, 0.08% THD, 2-channels driven, FTC)
    Dynamic Power per Channel 240 W (3 ohms, front)
    210 W (4 ohms, front)
    120 W (8 ohms, front)
    THD & Noise 0.08 % (20 Hz - 20 kHz, half power)
    Damping Factor 60 (front, 1 kHz, 8 Ohms)
    Input Sensitivity and Impedance 200 mV / 47 k-ohms (line)
    3.5 mV / 47 k-ohms (phono MM)
    RCA Output Level and Impedance Rated:
    100 mV / 2.2 k-ohms (zone 2 line-out)
    200 mV / 470 ohms (subwoofer pre-out)
    1.0 V / 2.2 k-ohms (zone 2 line-out)
    2.0 V / 470 ohms (subwoofer pre-out)
    Phono Overload 70 mV (MM, 1 kHz, 0.5%)
    Frequency Response 10 Hz - 100 kHz / +1 dB, -3 dB (direct mode)
    Tone Control +/- 10 dB, 20 Hz (bass)
    +/- 10 dB, 20 kHz (treble)
    Signal-to-Noise Ratio 100 dB (line, IHF-A)
    80 dB (phono MM, IHF-A)
    Speaker Impedance 6 - 16 ohms
    Crossover Adjustment Each Channel: 40, 50, 60, 70, 80, 90, 100, 120, 150, 200 Hz
    Input Sensitivity/Output Level and Impedance 1.0 Vp-p / 75 ohms (component Y)
    0.7 Vp-p / 75 ohms (component PB/CB, PR/CR)
    1.0 Vp-p / 75 ohms (composite)
    Component Video Frequency Response 5 Hz - 13.5 MHz / +0 dB, -3 dB
    Upscaling None
    3D Support Yes
    Deep Color / x.v. Color Support Yes
    HDMI CEC Yes
    FM Stereo
    Tuning Frequency Range FM: 87.5 MHz - 107.9 MHz
    AM: 530 kHz - 1,710 kHz
    FM/AM Preset Memory 40 Stations
    Wi-Fi Yes
    Bluetooth Version: 2.1 + EDR
    AirPlay Yes
    DLNA Certified Yes, version 1.5
    Bi-Amp Capability Yes
    Audio Return Channel (ARC) Yes
    Inputs 8 x HDMI (1 front)
    2 x Component Video
    3 x Composite Video
    1 x Digital Coaxial
    2 x Digital Optical
    7 x Stereo RCA
    1 x Stereo RCA Phono
    1 x USB (5 V / 1 A)
    Outputs 2 x HDMI
    1 x Stereo RCA Zone 2
    2 x Subwoofer Pre-out
    1 x Headphone (front)
    Other Interfaces 1 x Ethernet
    1 x RI Remote Control
    1 x Calibration Microphone (front)
    1 x AM Antenna
    1 x FM Antenna
    Speaker Connectors Center
    Front Left
    Front Right
    Surround Left
    Surround Right
    Surround Back, Height, or Bi-amp Left
    Surround Back, Height, or Bi-amp Right
    Zone 2 Left
    Zone 2 Right
    Power Consumption 6.4 A
    No Sound: 70 W
    Standby: 0.1 W
    Power Requirements 120 VAC, 60 Hz
    Dimensions (WxHxD) 17.1 x 6.8 x 13.0" / 435.0 x 173.5 x 329.0 mm
    Weight 20.7 lb / 9.4 kg
    Packaging Info
    Package Weight 26.2 lb
    Box Dimensions (LxWxH) 22.0 x 16.5 x 10.0"

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