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ONK8400 - Onkyo® TX-RZ840 Smart 9.2 Channel Network A/V Receiver
Item: ONK8400 | Model: TXRZ840

Brand: Onkyo    Last Ordered:

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Onkyo® TX-RZ840 Smart 9.2 Channel Network A/V Receiver 

Immense Power for Unparalleled Speaker Control! The Onkyo® Smart  9.2 Channel Network A/V Receiver elevates sound to a new level. It works with Sonos, includes THX® Certified Select, Dolby Atmos® and DTS:X®, is ready for 4K HDR, and more. 

SMART AV Receiver

SMART AV Receiver is the heart of the home entertainment system. Access streaming content from Amazon Music, Pandora®, Spotify®, TIDAL, Deezer, and TuneIn and share sound as part of a multi-room system via Works with Sonos, Chromecast built-in*, AirPlay 2, DTS Play-Fi®, and FlareConnect.

THX® Certified Select™ 

THX Certified Select guarantees the same reference volume and sound quality of at a commercial cinema in rooms where the viewing position is about 3.5 m from the screen. To deliver THX reference movie sound, receivers must pass 2,000 bench-tests in 75 categories covering 14,000 data points.

Dolby Atmos® and DTS:X® 

Dolby Atmos® and DTS:X® formats allow engineers to map sound anywhere in 3D space, effects moving from speaker to speaker all around the room and wrapping audiences in the latest films and games. Users can also enjoy a 3D speaker layout with classic titles. Dolby Surround® and DTS® Neural:X find overhead cues in legacy soundtracks and up-mix for awesome spatial realism.

Dolby Atmos Height Virtualizer

When playing any Dolby® format, engaging Dolby Atmos Height Virtualizer* enables a more immersive listening experience, creating a virtual surround and height effect from traditional speaker layouts without employing additional surround or height speakers.

* Enabled with a future firmware update.

Dynamic Audio Amplification 

Refined over 70 years to deliver emotion in high fidelity, DAA features a custom High-Current Low-Noise Power Transformer, customized capacitors, and discrete amp output stages. Unique topology prevents phase-shift while high current improves speaker control for true dynamic speed. Driving 4-ohm loads through all channels, DAA has power to move.

Ready for 4K HDR Entertainment

Enjoy support for HDR (High Dynamic Range) video including HDR10, HLG, Dolby Vision®, and BT.2020. The 4:4:4 color space is also supported. Six HDMI inputs, ARC-ready MAIN OUT, and SUB OUT pass 4K/60p and HDR video from player to compatible TV and projector and all terminals are HDCP 2.2 compliant.

Works with Sonos 

The TX-RZ740 can join existing Sonos Home Sound System, or be the start of a new one, just by pairing it with a Sonos Connect*. The AVR ties into the Sonos ecosystem, waking, changing inputs, and playing at the desired volume on command from the Sonos app*.  

* Sonos Connect sold separately. Sonos app is available free for iPad, iPhone, and Android™ at the App Store and Google Play. Please confirm device and OS compatibility before installation.

Ready for DTS Play-Fi® Multi-room Audio

DTS Play-Fi allows you to enjoy high-quality music from connected online services, networked media servers, and your device library over Wi-Fi® to any number of compatible products using the Onkyo Music Control App for iPad, iPhone, and Android smartphones/tablets. DTS Play-Fi can synchronize the music in every room. Everyone in the house can use their own device to listen to their music in a room or group of rooms. DTS Play-Fi lets users structure a comprehensive multi-room ecosystem that satisfies virtually any need

Chromecast Built-in* with Google Assistant

Stream any music from a smartphone, laptop, or PC to the receiver with ease. Control playback with Chromecast-enabled apps we all know and love from an iPhone, iPad, Android™ phone or tablet, Mac or Windows® laptop, or Chromebook™. If utilizing a smart speaker featuring the Google Assistant, users can cue, play, and control music playback by voice.

* The unit may automatically download and apply an Over-the-Air software update during setup.

Apple AirPlay 2

Apple AirPlay 2 lets users effortlessly stream music or podcasts to multiple audio devices throughout their home using any Apple device or by asking Siri - and it all stays in perfect sync. Create multi-room groups or stream to just one device.

*Apple Airplay 2 available via future firmware update.

Smooth Bluetooth streaming

Whatever audio is playing on a phone, tablet, or PC app can be streamed to the receiver with Bluetooth wireless technology. Once the receiver has paired with and remembered a device, it will start playback automatically whenever it detects an incoming Bluetooth audio stream.

Experience IMAX® Enhanced

IMAX Enhanced* A/V receivers feature DTS:X sound technology optimized for the IMAX® signature experience, reproducing the full dynamic range of IMAX theatrical sound-mixes available with digitally re-mastered IMAX Enhanced content. A pre-set IMAX Mode reproduces audio at the highest levels and delivers lMAX Enhanced content as the filmmakers intended. IMAX Enhanced versions of a range of films, from Hollywood blockbusters to documentaries, will be released for 4K HDR streaming and Ultra HD Blu-ray.

*Enabled with a future firmware update.

Amplifier (All Channels)

Dynamic Power: 250 W (3 Ω, Front), 220 W (4 Ω, Front), 130 W (8 Ω, Front)
THD+N (Total Harmonic Distortion + Noise): 0.08% (20 Hz–20 kHz, Half Power)
Input Sensitivity and Impedance: 200 mV rms/47 kΩ (Line), 3.5 mV rms/47 kΩ (Phono MM)
Rated RCA Output Level and Impedance: 200 mV/470 ohms (Zone B / Zone 2 Line Out) 1 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), ±10 dB, 20 kHz (Treble)
Signal-to-Noise Ratio: 106 dB (Line, IHF-A), 80 dB (Phono, IHF-A)
Speaker Impedance: 4 Ω–16 Ω


Video Input Sensitivity / Output Level and Impedance: 1.0 Vp–p/75 Ω (Component Y), 0.7 Vp–p/75 Ω (Component Pb/Pr), 1.0 Vp–p/75 Ω (Composite)
Component Video Frequency Response: +0 dB, -3 dB


FM: 87.5 MHz–107.9 MHz
AM: 530 kHz–1,710 kHz
FM/AM Preset Memory: 40 Stations


Power Supply: AC 120 V~, 60 Hz
Power Consumption: 850 W 
No Sound Power Consumption: 75 W
Standyby Power Consumption: 0.15 W
Dimensions (W x H x D): 17 1/8" x 7 15 /16" x 15 11/16" (435 x 201.5 x 398 mm)
Weight: 23.8 lbs (10.8 kg)


Dimensions (W x H x D): 22 7/16" x 13 3/16" x 19 5/16" (570 x 335 x 490 mm)
Weight: 37.5 lbs (17.0 kg)

UPC Code 

(B): 889951001799

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