Onkyo TX-NR636 7.2-Ch Dolby Atmos Ready Network A/V Receiver, 4K/60Hz, HDMI 2.0
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Onkyo TX-NR636 7.2-Ch Dolby Atmos Ready Network A/V Receiver, 4K/60Hz, HDMI 2.0

Bringing Next-Generation Entertainment to Your Home
  • Equipped with 7 channel amplifier
  • Incorporates Qdeo™ technology for HDMI video upscaling (to 4K compatible)
  • 4K/60 Hz Passthrough-compatible HDMI with Through function
  • Supports HDCP2.2, ARC, USB storage playback, Internet Radio, DLNA, etc.
  • Bi-Amping capability
  • A/V Sync Control Function to correct deviation of audio and video
  • Zone2 function - play a different source in another room
  • 32 bit DSP with excellent calculation performance
  • Music Optimizer for Compressed Digital Music files
  • Phase Matching Bass System
  • Automatic speaker setup using AccuEQ Room Calibration
  • Supports playback of MP3, WMA, WMA Lossless, FLAC, WAV, Ogg Vorbis, Apple Lossless, DSD, Dolby TrueHD via network and USB storage device
A detailed chart of features for this product is also available, please refer to the Onkyo TX-NR636 feature list.


  • Details
  • Specs
  • Reviews
  • Manuals
  • What's Included
  • The TX-NR636 is one of the only A/V receivers to feature the latest HDMI 2.0 supporting 4K/60 Hz and 21:9 display format and HDCP 2.2 copy-protection compatibility. Qdeo™ upscaling technology also converts low-res DVDs and games into pin-sharp Full HD or 4K (if you have an Ultra HD display). TX-NR636 paves the way for Ultra HD video playback at a liquid-smooth 60 frames per second. This is great news for PC gamers who can now add wall-shaking surround sound to their 4K/60 Hz experience.

    Onkyo's acclaimed WRAT (Wide Range Amplifier Technology), which provides the backbone that delivers Onkyo's classic sound, is coupled with Three-stage inverted Darlington Circutiry to the LCR channel to provide a big soundstage, superb timing, brilliant definition, and enough low-end grunt to make your speakers sing. The TX-NR636 packs a colossal punch for movies but still retains the pure musicality you need for two-channel playback.

    Built-in Wi-Fi® for universal hi-res streaming from PC, NAS, and smartphone is just the beginning. You can select from a wild variety of music streaming services and locate your network-attached libraries using the remote app, or stream almost any audio via built in Bluetooth. An HDMI/MHL terminal connects smartphones to display 1080p video with 7.1 channels of surround sound. Throw in a dedicated phono input, room equalization, and powered Zone 2 and you've got a value-packed 7.2-channel powerhouse ready for the next wave of high-resolution entertainment.

    Feel Every Dimension in Dolby Atmos

    Enter a new world of sound with Dolby Atmos®. It transports you from an ordinary moment into an extraordinary experience with captivating, multidimensional sound that fills your room with amazing richness and depth. Music, people, and objects come alive in breathtaking detail and flow in precise choreography all around you, making you feel like you are truly there.

    This Onkyo receiver features Dual 32-bit DSP engines to decode and scale Dolby Atmos to your home theater layout. With 7 channels of high-current amplification, you can unlock the full experience with in-ceiling height channels or Dolby Atmos-enabled speakers to augment a standard surround sound home theater setup for stunningly detailed sound that comes alive from all directions, including overhead. 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.

    Welcome to a new world of sound that delivers the full impact of entertainment. It will move your mind, body, and soul.


    Next Generation HDMI 2.0 and HDCP 2.2   Built-In Wi-Fi and Bluetooth
    The TX-NR636 is the first receiver to boast the latest HDMI 2.0 connections that support 4K/60Hz and 21:9 format, and also the latest Digital Rights Management (DRM) copy protection compatibility, HDCP 2.2. HDCP 2.2 has been adopted for future premium 4K releases by Hollywood studios, satellite broadcasters, and internet video streaming services, and the TX-NR636 is ready. This receiver has paved the way for Ultra HD video playback. Even if you're not planning on upgrading your current TV right away, it's good to know your Onkyo receiver is ready for the future of gaming and video entertainment.   The TX-NR636 has Wi-Fi and Bluetooth technologies built in. No wires, no dongles, no mess. Complete the one-time Wi-Fi setup, download our free control app for iOs and Android devices, and you've got a full range of remote control and audio streaming features in the palm of your hand. You can also pair your Bluetooth-capable device and stream direct to your home theater. With Advanced Music Optimizer DSP compensating for compression, music via Bluetooth has never sounded better.


    From Vinyl to the Digital Age   Internet Radio and Streaming
    Whether you're just beginning one or adding to you're an existing collection, the TX-NR636's dedicated phono input let you enjoy your classic vinyl in all its analog glory. Onkyo's commitment to Hi-Res audio playback and supports gapless playback and the ability to play DSD, Double DSD, FLAC and ALAC along with other Hi-Res formats. The TX-NR636 has what it takes to help you enjoy your music, and discover how truly amazing music can sound on an A/V receiver engineered for hi-res analog and digital audio.   If you can think of it, you'll most likely be able to stream it on your TX-NR636. The receiver comes loaded with Spotify, Pandora, SiriusXM Internet Radio, Slacker, AUPEO! and TuneIn, You can select a station and search for music available on these services via the free Onkyo app on your phone so you'll never be short of your favorite music to enjoy.

    Spotify Connect is available in this receiver via firmware update. It allows Spotify Premium subscribers to stream over 20 million tracks from the Spotify smartphone and tablet application through your home theater system. Spotify Connect also allows users to make calls or use other apps without interrupting playback, since the technology is built into the receiver.


    Hi-Fi Power and Fidelity   Exclusive AccuEQ Room Calibration
    WRAT (Wide Range Amplifier Technology) is all about current. Receivers need a lot of current not only to handle the sudden explosive actions scenes but also to reproduce the detail of quiet passages. We use a massive high-power transformer to drive discrete amps that help eliminate distortion and preserve the energy of music and movies. The TX-NR636 packs a colossal punch for movies but still retains the pure musicality you need for two-channel playback. Also, Phase-Matching Bass Enhancement optimizes low frequencies while preserving mid- range clarity. It counters phase shifting by synchronizing the timing of different frequencies. The result is deep, well- defined bass that won't blur vocals or strings.   Calibrating the sound to suit your room's acoustics is simple with AccuEQ. Once you've connected your speakers, plug-in the included mic and wait a few moments as the TX-NR636 measures things such as speaker distance, type, crossover, and output, taking into account any reflections from your walls and floor. The system is designed specifically to by-pass your front left and right speakers. The system then optimizes the frequency response of the remaining speakers so you can enjoy balanced surround sound regardless of room shape or furnishing while retaining the characteristics of your front left and right speakers for optimum enjoyment.
  • A detailed chart of features for this product is also available, please refer to the Onkyo TX-NR636 feature list.

     General Specifications

     Brand  Onkyo
     Part Number  TX-NR838
     UPC  751398011597
     Power Supply  AC 120V, 60 Hz
     Power Consumption  6.3 Amps
     No-Sound Power Consumption  80 W
     Standby Power Consumption  0.1 W
     Dimensions  17 1/8" W x 6 13/16" H x 12 15/16" D (435mm x 173.5mm x 329mm)
     Weight  22.0 lbs (15.5 kg)

     Amplifier Specifications

     All Channels  • 165w (1kHz, 0.9%THD, 6ohms, 1ch driven)
     • 95w (20-20kHz, 0.08%, 8ohms, 2ch driven)
     Dynamic Power  • 240 W (3 ohms, Front)
     • 210 W (4 ohms, Front)
     • 120 W (8 ohms, Front)
     THD+N (Total Harmonic Distortion + 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)
     • 2.5 mV/47 k-ohms (Phono MM)
     Rated RCA Output Level and Impedance  200 mV/470 Ohms (Line Out)
     Maximum RCA Output Level and Impedance  2.0 V/2.2 k-ohms (Line Out)
     Phono Overload  70 mV (MM, 1 kHz, 0.5%)
     Frequency Response  5 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  • 106 dB (Line, IHF-A)
     • 80 dB (Phono MM, IHF-A)
     Speaker Impedance  6 ohms-16 ohms

     Video Specifications

     Video  • 1.0 Vp-p/75 ohms (Component)
     • 0.7 Vp-p/75 ohms (Component PB/CB, PR/CR)
     • 1.0 Vp-p/75 ohms (Composite)
     Component Video Frequency Response  5 Hz-100 MHz, -3dB

     Tuner Specifications

     FM Tuning Frequency Range  87.5 MHz-107.9 MHz
     AM Tuning Frequency Range  530 kHz-1,710 kHz
     FM/AM Preset Memory  40 stations
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  • •  Basic Manual
    •  Basic Manual (with Atmos Firmware Update Installed)
    •  Advanced Manual (with Atmos Firmware Update Installed)
    •  Firmware Update Instructions
    •  Firmware Downloads
    •  Onkyo TX-NR636 Feature List
  • •  1x - Receiver Main Unit
    •  1x - Indoor FM Antenna
    •  1x - AM Loop Antenna
    •  1x - Set of Color Labels for Speaker Cable
    •  1x - Remote Control
    •  2x - AA Batteries for Remote Control
    •  1x - Power Cord
    •  1x - Speaker Setup Microphone
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