Open Box Electronics For Sale
Open Box Electronics For Sale

Onkyo TX–NR646 | 7.2 Network AV Receiver w/ Minor Cosmetic Damage (Open Box)

  • Support for DTS:X and Dolby Atmos offer Object based surround
  • 8 HDMI inputs and dual outputs with HDCP 2.2 for 4K UltraHD
  • 384 kHz/32–bit Hi–Grade DAC perfect for Hi–Res Digital Audio
  • Built–in Bluetooth and Wi–Fi connects to smartphones and tablets.

Regular Price: $399.00

You Save $129 (32%)

Your Price: $269.97

This Item Is Currently Unavailable.

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Details & Highlights

What is Open Box?

Open Box items are products that have been returned to us by customers, or were on display in our retail store. In most cases these items are in as-new condition. Although occasionally they may have had a minor defect repaired, these items are fully operational to manufacturer specifications. Open Box items include all supplied accessories and carry the full **manufacturer's warranty.
  • ** Excludes Definitive Technology, Monster, Beats by Dr. Dre, Klipsch and Onkyo products.
  • Availability is limited to stock on hand.
  • Open Box items are sold on a first-come first-served basis.
  • For more details please don't hesitate to give us a call at 1.800.340.4770

Product Highlights

    Cutting Edge Home Theater

    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. 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:XTM and Dolby Atmos® multi–dimensional audio formats.

Details from Onkyo

    DTS:X Compatible

    The next–generation of surround is introduced with DTS:X. Object–based surround sound technology includes height to deliver a fully–immersive listening experience with the ultimate in flexibility and interactivity. Distinguishing itself from channel–based audio, DTX:X allows you to personalize your audio experience. Dialog being drowned from the rest of the audio in the scene? Increase only the volume of the spoken portion of the sound track without affecting the remaining sound effect. DTS:X furthers customization to your room layout in addition to control of dialog and dynamic range.

    Supports Dolby Atmos®

    With Dolby Atmos, sound eminates from all directions, from bushes rustling nearby to birds singing from directly overhead. The format seamlessly combines a channel–based audio bed with object–oriented sound to place and move specific effects around the room. The result is breathtakingly realistic and captivating sonic atmosphere immersing you in your entertainment. Free to create immersive worlds of audio, Sound designers and artists are able to mix in a 3D space. Directing sound effects throughout surround channels and placing overhead dimension audio with discrete height channels. Additionally, a new Dolby surround up–mixer allows for your current channel–based content (that has not been mixed for Dolby Atmos) to be expanded to fill the flexible speaker layouts of a Dolby Atmos system.

    Ready for 4K UltraHD

    4K Ultra HD is taking the television world by storm, but with the latest in video connection most receivers will fall short of the ultimate in home entertainment experience. The TX–NR646 integrates up–to–date HDMI specification and HDCP 2.2 fully compatible with the latest formats and technologies planned for Hollywood content. This latest HDMI spec offers a significant increase in bandwidth (up to 18Gbps) to support new features such as 4K@50/60 (2160p), which is 4 times the clarity of 1080p/60 video resolution, and 4:4:4 color space. This Onkyo AVR enables transmission of High Dynamic Range (HDR) formats, and provides enhanced picture quality by simultaneously enabling greater detail for both the dark and bright parts of an image.

    Bluetooth / Wi–Fi®

    The TX–NR646 has AirPlay, Wi–Fi and Bluetooth technologies built in. The free Onkyo Remote app puts a range of streaming options at your fingertips, from universal hi–res audio via network–attached devices to internet streaming services to music on your smartphone and tablet. Or pair up and enjoy whatever's playing on your Bluetooth–compatible device for huge cinematic sound. This receiver comes loaded with Spotify, Pandora, SiriusXM Internet Radio, Slacker and TuneIn. You can select a station and search for music available on these services via the Onkyo Remote app on your phone. You'll never be short of your favorite music to enjoy.

    Hi–Current Amp Design for Authentic Sound Reproduction

    From the quietest dialog passages to booming action scenes, Onkyo's exclusive amplification technology dramatically enhances the audio dynamics of your movies, music and games.This Wide Range Amplifier Technology (WRAT) is at the core of Onkyo's signature sound. The innovative amplifier design is comprised of three key elements:

    • a low negative feedback design for punchy, true-to-life sound, and cleaner audio across the frequency ranges
    • closed groundloop circuits to reduce individual circuit noise and keep the ground potential free of distortion
    • a high instantaneous current to handle big dynamic gains.

    This allows massive power at 170 W/Ch (6 Ohms, 1 kHz, 0.9% THD, 1 Channel Driven, FTC) and 100 W/Ch (8 Ohms, 20 Hz–20 kHz, 0.08% THD, 2 Channels Driven, FTC).

    384 kHz/32–bit Hi–Grade DAC

    No matter what you're listening to, it will sound powerfully full, clean and clear. A premium–quality AK4458 digital–to–analog converter from Asahi Kasei implements unique low–distortion filtering technologies for clear sound, and unlocks the full potential of any audio format, including compressed, lossless, and hi–res audio (MP3, WMA, WMA Lossless, FLAC, WAV, OggVorbis, AAC, Apple Lossless, DSD 5.6 MHz, LPCM, and Dolby TrueHD).

    Classic Analog & Hi–Res Digital

    This receiver is engineered for hi–res analog and digital audio. You can spin your classic vinyl and hear it in all its analog glory and stream your networked hi–res digital files. Both analog and digital audio sound its wwarmest and clearest. The TX–NR646 supports hi–res audio playback, gapless playback, and the ability to play DSD, Double DSD, FLAC and ALAC along with other Hi–Res formats.

    Powered Zone 2 and Zone 2 Line–Outs

    The TX–NR646 features Powered Zone 2 and Zone 2 line–outs. This lets you assign two channels to power audio in a room equipped with speakers. An existing hi–fi system in a third room can also be connected via the line–out, enabling the use of the A/V receiver as a pre–amp and audio server.


Features & Specs

Best Seller
Manufacturer's Warranty
    No Warranty
Detailed Specifications
  • Number Of Channels Channels: 7.2
  • Power Watts/Ch (6 Ohms 1kHz, 1 Channel Driven, FTC): 170, 0.9&$37; THD
  • Power Watts/Ch (8 Ohms 20–20kHz, 2 Channels Driven, FTC): 100, 0.08&$37; THD
  • WRAT (Wide Range Amplifier Technology)L ✓
  • H.C.P.S (High Current Power Supply): ✓ (Massive High Power Transformer)
  • THX Certified:
  • Continuous 6 Ohms Rated:
  • Certified 4 Ohms Performance:
  • Discrete Output Stage Circuitry:
  • 3–Stage Inverted Darlington Circuitry:
  • PUSH–PULL Design:
  • Independent Block Construction (Amp/Preprocessor):
  • Toroidal Transformer:
  • Independent Power Supply: ✓ (x2)
  • Bi-amp Capability For Front:
  • Processing
  • Dolby Atmos:
  • 32–Bit Digital Signal Processing Engine: ✓ (Dual DSP for Powerful Advanced Processing
  • Dolby Decoder: Atmos, True HD, DD Plus
  • DTS:X:
  • DTS Decoder: DTS:X, DTS–HD Master Audio
  • ONKYO GAME Surround Modes: ✓ (Rock, Sports, Action, RPG)
  • THX Processing Mode:
  • AccuEQ Room Calibration: ✓ (Advanced)
  • Phase–Matching Bass Boost: ✓ (for Deep Bass and Clear Mid–Range)
  • Direct/Pure Mode: – / ✓
  • Pure Direct Analog Path Mode:
  • Advanced Music Optimizer: ✓ (Bluetooth Included)
  • 384K/32 Bit DACs: ✓ (AKM4458)
  • 192K/32 Bit DACs:
  • 192K/24 Bit DACs:
  • isf Certified Calibration Control:
  • Connectivity
  • Audio I/O: 7 / 0
  • Phono Input:
  • Digital Audio IN (OPT/COAX): 2 / 1
  • Composite I/O: 3 / 0
  • Component Video I/O: 2 / 0
  • Front Panel HDMI:
  • Front–Panel A/V:
  • Front–Panel Optical:
  • USB Input: ✓ (Rear)
  • HDMI I/O : 8 / 2
  • HDMI 4K/60 Hz– Capable HDMI Terminals: ✓ (HDR Support)
  • HDCP 2.2 Copy–Protection Compatibility: ✓ (3 in / 2 out)
  • HDMI Support for High Dynamic Range:
  • HDMI Support for 3D, Audio Return Channel and CEC:
  • HDMI Support for Deep Color, x.v.Color, LipSync:
  • HDMI Support for DVD–Audio, SACD, Multichannel PCM:
  • InstaPrevue Input Source Prevue:
  • MHL for Mobile Device Connection:
  • Composite to Component Video Upconversion:
  • Analog To HDMI Upconversion: ✓ (from 480i/576i)
  • 1080p Upscaling:
  • 4K (up to 4096 x 2160) Upscaling:
  • 4K Passthrough:
  • Analog Pre–Outs: Subwoofer (x2)
  • XLR Pre–outs:
  • 18mm Pitch High Grade Pre–outs:
  • Speaker A/+B:
  • Powered Zone 2:
  • Powered Zone 3:
  • Zone 2 Line Out: ✓ (Fixed)
  • Zone 2 Video Out:
  • Zone 2 Digital to Analog Audio Conversion: ✓ (S/PDIF, NET, USB)
  • Zone 3 Line Out:
  • Whole House Mode:
  • Made for iPod, iPhone, iPad:
  • Airplay:
  • Supports Onkyo Remote App: ✓ (iPod touch/iPhone and Android–Powered Devices)
  • Internet Radio Capable: ✓ (Pandora, Spotify, Sirius, Slacker, Aupeo!, TuneIn)
  • Spotify Connect Support:
  • Streaming Audio From PC / Network: ✓ (DLNA, Home Media)
  • Hi–Res Streaming Audio Formats: ✓ (Apple Lossless, DSD 2.8/5.6 MHz, Dolby TrueHD, FLAC 192/24, LPCM, Ogg Vorbis, WAV, WMA)
  • Streaming Audio From USB memory:
  • Wireless Network: ✓ (Wi–Fi–Certified)
  • Bluetooth: ✓ (Built–in)
  • PC Input (15 pin D–sub):
  • Integration Access
  • RS–232:
  • IR Input:
  • IR Output:
  • Ethernet:
  • ONKYO–RI System Control:
  • RIHD (Remote Interactive Over HDMI):
  • 12V Trigger:
  • Miscellaneous
  • Pre–Pro/Learning Remote: –/✓
  • On Screen Remote Programming:
  • Bi–directional Remote Setup via GUI:
  • Hybrid Standby Function: ✓ (to Reduce Power Consumption)
  • Smart Grid–Ready:
  • Auto Speaker Calibration W/Mic.: ✓ (AccuEQ – Advanced)
  • OSD Out: ✓ (Advanced "Home" GUI)
  • Solid Aluminum Front:
  • Detachable AC Cord:
  • Warranty: 2 YEARS
  • Dimensions
  • Width: 17.12"
  • Height: 6.81"
  • Depth: 12.93"
  • Weight: 20.7 lbs
Product Bullets
  • Support for DTS:X and Dolby Atmos offer Object based surround
  • 8 HDMI inputs and dual outputs with HDCP 2.2 for 4K UltraHD
  • 384 kHz/32–bit Hi–Grade DAC perfect for Hi–Res Digital Audio
  • Built–in Bluetooth and Wi–Fi connects to smartphones and tablets.


Included Coverage from Onkyo: No Warranty

Category ID: 166 | $269.97