Onkyo Sound is Emotion. Delivered
Destined to intoxicate hi-fi enthusiasts as much as serious film and game lovers, the TX-NR838 Network A/V Receiver combines pure
analog power with the latest in high-resolution audio and video processing. This heavyweight receiver is built around Onkyo's acclaimed WRAT high-current architecture with a massive customized transformer and discrete Three-Stage Inverted Darlington Circuitry amplification.
Hi-fi credentials are cemented with Pure Direct Analog Path, a selectable mode that shuts down all digital circuitry when you're listening to LPs or other high-quality audio sources. Signals are routed via the phono or analog inputs to the amps for pristine sound that's completely free of digital noise.
Devotees of high-resolution, meanwhile, can stream their network-attached 5.6 MHz DSD or 192/24 hi-res albums using the remote app, while listeners seeking an instant fix can enjoy music from smartphone via built-in Wi-Fi® and Bluetooth. The TX-NR838 is also packed full of cutting-edge features for movies and gaming, with 4K/60 Hz-ready HDMI®2.0 terminals, HDCP 2.2 compatibility for future Ultra HD premium content, and the sheer power you need for a supreme surround-sound experience. Learn more.
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. Click here for detailed information about Dolby Atmos.
Class-Leading Hi-fi Amplification for a Moving Listening Experience
Onkyo sound is Emotion. Delivered.
Drivers don't judge sports cars on top speed alone. Acceleration, cornering, and braking are equally important. It's the same with A/V receivers— wattage is an indication of loudness, not sound quality. The real test is current.
High instantaneous current realizes ultimate control of the speaker drivers for accurate and musical audio reproduction, from the most delicate piano passages to the thunderous roar of an orchestra in full flight.
High current is the cornerstone of our amplification philosophy, and no other brand can match Onkyo for dynamic driving power. We don't just translate signals into sound. We create sound you can feel.
Engineered for Pure Exhilaration
Best-in-class high-current capability is achieved with Wide Range Amplifier Technology (WRAT). The design is built around a custom
high-output transformer, customized 15,000 μF capacitors, and low-impedance copper bus-plates.
Three-Stage Inverted Darlington Circuitry amplification features a discrete low-impedance output stage with high-current transistors for instantaneous power and extremely low distortion.
Unlike some A/V receivers, the audio and video processors, DAC section, networking, pre-amp, amplifiers, and power supply are all separated to minimize electrical interference on audio signals.
The culmination of over 60 years' audio engineering experience, WRAT preserves the life and character of the master recording while guaranteeing an emotionally moving experience whether you're listening to compressed digital music, a treasured LP, or a hi-res movie soundtrack.
THX® Select2™ Plus Delivers Reference-Level Sound in Your Home
Hear Movies Precisely As the Director Intended
THX certification guarantees the same high-volume, low-distortion sound of a commercial multiplex theater in your own listening space, with high-resolution studio-master soundtracks reproduced precisely as the director intended.
The TX-NR838 Network A/V Receiver has passed more than 2,000 laboratory bench tests across 75 categories and covering 14,000 individual data points to ensure that every aspect of audio performance meets rigorous THX standards for theater-reference sound.
THX Select2 Plus is recommended for medium-sized rooms where the screen-to-seat viewing distance is about 3–4 m (10–12 ft.).
HDMI 2.0 and HDCP 2.2 Compatibility
Ready for Next-Generation Ultra HD Entertainment! Five of the receiver's seven HDMI inputs are the latest HDMI 2.0 specification and support 4K video at 50/60 frames per second and 21:9 aspect ratio for theater-reference movie display. Now you can add thunderous 7.2-channel surround-sound to blockbuster 4K 50/60 Hz games and movies for a breathtakingly realistic entertainment experience. These next-generation HDMI inputs ensure maximum display quality from a wide range of high-definition media sources, including future Ultra HD 50/60Hz broadcasting and internet streaming. The TX-NR838 also supports the latest HDCP 2.2 DRM copy protection standard via HDMI Input 3 and the main output. Hollywood studios, satellite broadcasters, and internet video streaming services will adopt HDCP 2.2 for future 4K and Premium Studio Content releases.
Dual 32-bit DSP Engines for Unparalleled Processing Power for High-Resolution Audio
Unparalleled Processing Power for High-Resolution Audio
Most conventional A/V receivers use just one Digital Signal Processor (DSP) to decode digital audio. The Onkyo TX-NR838 doubles the power with two 32-bit processing engines handling multichannel studio-master soundtracks along with a large variety of hi-res audio files, including 5.6 MHz DSD (the same format used for Super Audio CD). The dual DSP engines are super-efficient at decoding these complex files so you can enjoy effortlessly smooth high-resolution playback.
Wi-Fi and Bluetooth Inside
Universal Support for Wireless Audio Streaming
The TX-NR838 has Wi-Fi and Bluetooth technologies built in. Our free control app puts a range of streaming options at your fingertips, from universal hi-res audio via NAS to internet streaming services to music on smartphone and tablet. Or pair up and enjoy whatever's playing on your Bluetooth- compatible device with huge cinematic sound. Thanks to Advanced Music Optimizer enhancement, near CD-quality audio is ready in moments, without the wires.
This 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 Onkyo app on your phone so you’ll never be short of your favorite music to enjoy. Spotify Connect is also 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 to their home theater systems. Spotify Connect also allows users to make calls or use other apps without interrupting playback, since the technology is built into the receiver.
Deeper, Wider, Clearer Sound for Vinyl and SACD
At the touch of a button on the front panel, Pure Direct Analog Path mod lets your home theater receiver double as a dedicated analog stereo amplifier for source components, bringing higher fidelity to vinyl, SACD, or CD playback. With this mode engaged, every digital circuit is physically shut down to prevent electrical interference on analog audio signals. Signals pass directly from the phono or analog audio inputs to the amplifiers and arrive at your front loudspeakers in pure analog form. The improvement in audio quality is quite dramatic. With subtle interference erased, you can hear more detail deeper down in the mix, while the rich tonal character of vinyl is displayed in all its analog glory.
Share Your HD Video Sources in Two Zones
The HDMI Sub Out can be used to connect your A/V receiver to a second display in another room. Now you can route 1080p content from the media players in your home theater room via the receiver and play it back in Zone 2. Enjoy your favorite Blu-ray Discs, cable TV shows, and other HD content in the kitchen, den, or bedroom with easy playback control via smartphone or tablet.
Engineered to Make Hi-res Audio Easy for Everyone
Onkyo A/V receivers are 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. The remote app very quickly locates the 192/24 and 96/24 high-resolution audio files on your network-attached storage devices and sends them via DLNA to the receiver with zero loss in quality. Almost every hi-res and lossless format is supported, from gapless FLAC and WAV to ALAC and WMA.
The TX-NR838 also handles 5.6 MHz DSD and Dolby® TrueHD formats for the ultimate in depth and clarity. With surpassing DSP power, high-quality TI Burr-Brown D/A conversion, and Onkyo's low-distortion amplification, hi-res music on your home theater is not only easy to enjoy, it sounds absolutely fantastic.
AccuEQ Room Calibration
Effective Correction for Dynamic Multichannel and Stereo Sound
Onkyo developed AccuEQ to simplify the initial home theater setup process, and to make both surround-sound and two-channel audio sound clean and clear in your listening space.
To showcase the unique acoustical characteristics of your front loudspeakers, AccuEQ bypasses the front two channels so you can enjoy authentic hi-fi audio quality for stereo music, with no DSP correction applied.
Instead, the included microphone measures the distances, crossovers, and output levels of the surround and center speakers from one easy listening position, which speeds up and simplifies the calibration process. With room correction complete, you can enjoy perfect clarity and three-dimensional cohesion when playing multichannel movie soundtracks, and natural high-fidelity performance for stereo listening.
Rediscover Your LP Collection
The TX-NR838 was also designed with analog lovers in mind. Unlike most A/V receivers in this category, we include a high-quality moving-magnet phono equalizer to enable turntable connection via the rear input . Three-Stage Inverted Darlington Circuitry high-current amplification brings out the warmth and dynamism of your records. Whether you're a long-time collector or just starting out in the hobby, the TX-NR838 will surprise and delight with authentic high-fidelity sound.
Control Audio in Up to Three Rooms via Remote App
Multi-Zone Audio and Front Channel Bi-Amping Capability
Dedicated Zone 2 speaker terminals can power audio in another room equipped with a pair of stereo speakers, while line-level outputs for Zone 2/3 allow you to send audio to a power amp and speakers in a third zone. Use your smartphone or tablet to play music simultaneously in every zone with the convenient one-touch Whole House Mode, or play a different source in each room.
You can also assign the Surround Back channels to bi-amp your compatible front loudspeakers, while two parallel subwoofer outputs enable the connection of a second subwoofer for balanced and powerful bass sound.
|Power Watts/Ch (6 Ohms 1kHz, 2 Channels Driven, FTC)||160, 0.7% THD|
|Power Watts/Ch (8 Ohms 20-20kHz, 2 Channels Driven, FTC)||130, 0.08% THD|
|WRAT (Wide Range Amplifier Technology)||✓|
|H.C.P.S (High Current Power Supply)||✓ (Massive High Power Transformer)|
|THX Certified||Select2 Plus|
|Continuous 6 Ohms Rated||✓|
|Certified 4 Ohms Performance||✓|
|Discrete Output Stage Circuitry||✓|
|3-Stage Inverted Darlington Circuitry||✓ (All Channels)|
|Independent Block Construction (Amp/Preprocessor)||-|
|Independent Power Supply||2|
|Bi-amp Capability For Front||✓|
|Direct/Pure Mode||X / X|
|192K/24 Bit DACs||✓ (Burr-Brown)|
|32-Bit Digital Signal Processing Engine||✓ (Dual DSP for Powerful Advanced Processing)|
|Phase-Matching Bass Boost||✓ (for Deep Bass and Clear Mid-Range)|
|192K/32 Bit DACs||-|
|DTS Decoder||DTS-HD Master Audio|
|ONKYO GAME Surround Modes||✓ (Rock, Sports, Action, RPG)|
|Advanced Music Optimizer||✓ (Bluetooth Included)|
|Dolby Decoder||Atmos, True HD, DD Plus, PLIIz|
|Pure Direct Analog Path Mode||✓|
|THX Processing Mode||✓|
|isf Certified Calibration Control||-|
|AccuEQ Room Calibration||✓ (with Mic Included)|
|Analog To HDMI Upconversion||✓ (from 480i/576i)|
|PC Input (15 pin D-sub)||-|
|Internet Radio Capable||✓ (Pandora, Spotify, Sirius/XM, Slacker, Aupeo!, TuneIn)|
|4K (up to 4096 x 2160) Upscaling||✓ (Marvell Qdeo)|
|HDCP 2.2 Copy-Protection Compatibility||✓ (1 in / 1 out)|
|iPod Ready||✓ (via optional DS-A5)|
|HDMI Support for DVD-Audio, SACD, Multichannel PCM||✓|
|InstaPrevue Input Source Prevue||✓|
|Zone 2 Line Out||✓ (Fixed/Variable)|
|Zone 3 Line Out||✓ (Fixed/Variable)|
|Airplay||✓ (via optional DS-A5)|
|Component Video I/O||1 / 1|
|Wireless Network||✓ (Wi-Fi-Certified)|
|USB Input||✓ (Front)|
|HDMI 2.0 4K/60 Hz- Capable HDMI Terminals||✓|
|MHL for Mobile Device Connection||✓ (Front HDMI)|
|Composite to Component Video Upconversion||-|
|Zone 2 Digital to Analog Audio Conversion||✓ (NET, USB, HDMI)|
|HDMI I/O||7 / 2|
|HDMI Support for 3D, Audio Return Channel and CEC||✓|
|Whole House Mode||✓|
|Streaming Audio From USB memory||✓|
|Digital Audio IN (OPT/COAX)||2 / 3|
|Powered Zone 2||✓|
|Powered Zone 3||-|
|Supports Onkyo Remote App||✓ (iPod touch/iPhone and Android-Powered Devices)|
|Composite I/O||4 / 1|
|1080p Upscaling||✓ (Marvell Qdeo)|
|Zone 2 Video Out||✓ (HDMI w/OSD)|
|18mm Pitch High Grade Pre-outs||-|
|HDMI Support for Deep Color, x.v.Color, LipSync||✓|
|Streaming Audio From PC / Network||✓ (DLNA, Home Media)|
|Front Panel HDMI||✓|
|Hi-Res Streaming Audio Formats||✓ (Apple Lossless, DSD 2.8/5.6 MHz, Dolby TrueHD, FLAC 192/24, LPCM, Ogg Vorbis, WAV, WMA)|
|Analog Pre-Outs||7.2 Ch|
|Audio I/O||7 / 0|
|ONKYO-RI System Control||✓|
|12V Trigger||✓ (Zone 2)|
|RIHD (Remote Interactive Over HDMI)||✓|
|Color-Coded Speaker Terminals||✓|
|Auto Speaker Calibration W/Mic.||✓ (AccuEQ)|
|Pre-Pro/Learning Remote||- / ✓|
|Bi-directional Remote Setup via GUI||-|
|On Screen Remote Programming||✓|
|Detachable AC Cord||✓|
|Hybrid Standby Function||✓ (to Reduce Power Consumption)|
|Activity Based Remote||-|
|OSD Out||✓ (Advanced "Home" GUI)|
|Solid Aluminum Front||✓|
|All Channels||130 W (8 Ohms, 20 Hz-20 kHz, 0.08%, 2 channels driven, FTC)|
160 W (6 Ohms, 1 kHz, 0.7%, 2 channels driven, FTC)
|Dynamic Power||300 W (3 ohms, Front)|
250 W (4 ohms, Front)
150 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||4.6 V/470 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||4 ohms16 ohms|
|Input Sensitivity/Output Level and Impedance|
|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 Hz100 MHz, -3dB|
|Tuning Frequency Range|
|FM||87.5 MHz107.9 MHz|
|AM||530 kHz1,710 kHz|
|FM/AM Preset Memory||40 stations|
|Power Supply||AC 120 V~, 60 Hz|
|Power Consumption||8.1 A|
|No-Sound Power Consumption||90 W|
|Standby Power Consumption||0.1 W|
|Dimensions (W x H x D)||17 1/8" x 7 13/16" x 15 3/4" (435 x 198.5 x 400 mm)|
|Weight||34.2 lbs (15.5 kg)|
ATMOS Advanced Manual
ATMOS Basic Manual
ATMOS Basic Manual
ATMOS Online Advanced Manual
Online Advanced Manual