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Onkyo TX-RZ900 7.2-channel home theater receiver with Wi-Fi®, Bluetooth®, Apple® AirPlay®, and Dolby Atmos®

Item # 580RZ900

At the movies, sound comes from all around you, putting you right in the middle of the action.

At the movies, sound comes from all around you, putting you right in the middle of the action.

5 questions - 5 answers

Item # 580RZ900

Shop all Onkyo Home Theater Receivers

About the Onkyo TX-RZ900

Deia Z.

Put more "theater" in your home theater

At the movies, sound comes from all around you, putting you right in the middle of the action. The Onkyo TX-RZ900 lets you experience the same thrilling theater sound in your living room. This receiver's high-powered amplifier, anchored by a custom toroidal transformer, gives you clean, powerful sound so you can crank up the volume and feel every single effect. THX® Select2 Plus™ certification means faithful, distortion-free reproduction of movie soundtracks at any volume level. You'll enjoy multi-dimensional surround sound and stunning 4K Ultra HD picture quality for the most immersive home theater experience yet.

Onkyo TX-RZ900

The Onkyo TX-RZ900 has a fresh new design with easy-access buttons on the front panel.

Put more "theater" in your home theater

At the movies, sound comes from all around you, putting you right in the middle of the action. The Onkyo TX-RZ900 lets you experience the same thrilling theater sound in your living room. This receiver's high-powered amplifier, anchored by a custom toroidal transformer, gives you clean, powerful sound so you can crank up the volume and feel every single effect. THX® Select2 Plus™ certification means faithful, distortion-free reproduction of movie soundtracks at any volume level. You'll enjoy multi-dimensional surround sound and stunning 4K Ultra HD picture quality for the most immersive home theater experience yet.

You'll get the same clarity and detail from your music when you connect a thumb drive loaded with high-res audio files, and you can instantly stream nearly any music you can think of. Multi-zone audio and video connections let you extend your entertainment beyond your living room, and a convenient Wi-Fi remote app lets you control your entire system from your phone or tablet.

Take your home theater above and beyond with Dolby Atmos and DTS:X™

A technology that just made its debut in home theater receivers last year, Dolby Atmos creates the most lifelike, captivating surround sound of any audio format we've heard to date. If you're watching a plane take off onscreen, your ears will follow it down the runway along with your eyes, and as it flies overhead you might swear your hair is blowing back as it roars directly above you. The TX-RZ900 supports a 5.1.2 Atmos setup. If you're ready to explore this new dimension in home theater sound, you'll just need to add a pair of in-ceiling speakers to your five-channel system, or pick up a pair of Atmos enabled upward-firing speakers to project sound off your ceiling and create the height effects that make an Atmos system so riveting.

Onkyo will release a firmware update in the summer of 2016 that will give this receiver DTS:X surround sound, an upcoming format which will use object-based processing similar to Dolby Atmos and overhead speakers for immersive home theater.

Endless streaming options

The TX-RZ900's built-in Wi-Fi lets you access the music you have stored on your networked computer, plus you can take advantage of free Internet radio and other subscription-based Internet radio services like Spotify®, Pandora®, and SiriusXM Internet radio. All of these options can be controlled with the Onkyo Remote app on your phone. Bluetooth lets you stream any music you listen to on your phone or tablet directly to the receiver for playback through your home speakers, and Apple AirPlay lets you send music wirelessly from a compatible Apple device or from any computer with iTunes®.


High-res audio

Great sound is key

Audio performance is at the heart of the TX-RZ900's design. Parallel "push-pull" amplification gives you smooth sound with minimal distortion for thrilling movie sound effects. Phase-matching Bass Boost lets you enjoy deep, thunderous low frequency effects while vocals and dialogue remain clear. Music aficionados will appreciate decoding for high-resolution DSD and FLAC files, along with other high-res formats. Onkyo's Music Optimizer helps improve the sound of compressed audio files and Bluetooth streams so you can hear your music the way it was meant to be heard. A premium 32-bit/384kHz digital-to-analog converter uses an exclusive low-distortion filtering technology to deliver crystal-clear reproduction of music and TV and movie soundtracks.

Enjoy music and video in multiple rooms

Ever wish you had a dedicated music listening room? It isn't hard to set one up with the TX-RZ900's multi-zone audio capabilities. Powered Zone 2 outputs let you connect a pair of speakers for stereo sound in another room, so you can still enjoy 5.2-channel surround sound in your living room. You can also connect a stereo receiver through line-level Zone 2 and Zone 3 connections and use the 'RZ900 as a preamp. Whole House Mode lets you play the same song in all zones, or you can listen to a different song in each room. A second HDMI out lets you watch video from two separate sources in your living room and a second room. Use the Onkyo Remote app to control playback in different zones from anywhere in the house.

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Highlights:

    Power and Processing:
    • 7-channel amplifier
    • 140 watts per channel into 8 ohms (20-20,000 Hz) at .08% THD, with 2 channels driven
    • Dolby® and DTS® surround sound decoding
      • Dolby Atmos® processing for use with in-ceiling or "height" speakers for more enveloping home theater sound
      • DTS:X for an immersive, 3-dimensional soundstage (available via summer 2016 firmware update)
    • THX Select2 Plus certified for uncompromised home theater sound
    • AccuEQ automatic speaker calibration optimizes your system's sound for your room (microphone included)
    Digital and Streaming Music Options:
    • built-in Wi-Fi for listening to music from a networked PC, free Internet radio, and music services
      • includes support for Pandora, Spotify, SiriusXM, Slacker®, TuneIn, and Deezer (subscription required for some services)
    • built-in Bluetooth for wireless music streaming from a compatible smartphone, tablet, or computer
    • Apple AirPlay for streaming music from an iPhone®, iPad®, iPod touch®, or computer running iTunes
    • DLNA-certified for streaming music with compatible devices and computers
    • plays high-resolution digital music files via USB storage device or a networked computer
      • PCM files up to 24-bit/192kHz resolution; DSD files up to 5.6 MHz
    Multi-room Audio/Video:
    • three-room/three-source output
      • powered stereo audio outputs for 2nd room
      • Zone 2 HDMI output allows you to watch different video content simultaneously on two TVs
      • using powered 2nd-room output allows 5.2 home theater in main room
      • line-level 2nd- and 3rd-room outputs for use with a separate amplifier or powered speakers
      • output in 3rd room requires the use of separate amplifier or powered speakers
      • only players connected to the AUDIO IN jack by analog connection can be played in Zone 3
    Audio Performance Features:
    • high-current amplifier design for accurate sound
    • custom toroidal transformer for powerful, dynamic sound with minimal distortion
    • Pure Direct Analog Path disengages all digital circuitry for clean playback of analog sources
    • 32-bit/384kHz Asahi Kasei AKM4458 digital-to-analog converter for clear sound from digital sources
    • Music Optimizer function enhances the sound quality of compressed music files and Bluetooth streams
    • bi-amp capability with compatible front speakers by reassigning "surround back" channels
    Connections:
    • HDMI 2.0a audio/video switching: 8 in, 2 out (includes front-panel input)
      • HDCP 2.2 technology ensures compatibility with 4K Ultra HD sources and TVs (HDMI inputs 1-5, and monitor outputs only)
      • HDR-compatible for extended picture contrast and brightness with compatible 4K TVs and HDR-encoded content
    • component video switching: 2 in, 1 out
    • composite video switching: 3 in, 1 out
    • digital audio inputs: 3 optical and 2 coaxial
    • 8 analog stereo audio inputs
    • phono input for direct connection of a turntable
    • 7.2-channel preamp outputs for connection to a separate power amplifier
    • rear-panel USB port for audio playback from USB storage devices
    • Ethernet port for network connection
    • outputs for 11 speakers (Front L/R, Center, Surround L/R, Surround Back L/R, Height L/R, Zone 2 L/R)
    • receiver can power a maximum of seven channels at once
    • RS 232, IR, and 12-volt trigger connections for use with external controllers
    General Features:
    • free Onkyo remote app lets you use your Apple or Android™ device as a Wi-Fi remote
    • 4K/60p and 3D video pass-through
    • HDMI standby pass-through allows access to all HDMI connected devices without having to power on the receiver
    • Audio Return Channel function receives digital audio signals from a compatible TV's tuner via HDMI
    • Phase-Matching Bass Boost optimizes low frequencies to preserve clarity with vocals and movie dialogue
    • 40 AM/FM presets
    • remote control
    • 17-1/8"W x 7-15/16"H x 18-1/16"D (10-1/4"H with Wi-Fi antennas raised)
    • weight: 39.7 lbs.
    • warranty: 2 years
    • MFR # TX-RZ900

    What's in the box:

    • 7.2ch AV receiver
    • 6' AC power cord
    • Wireless remote control (RC-900M)
    • 2 "AA" batteries
    • Setup microphone
    • AM loop antenna
    • FM wire antenna
    • Basic Manual
    • Product registration card/Warranty information
    • Important Safety Instructions
    • "Support for DTS:X Audio Format" note

    Customer reviews for Onkyo TX-RZ900

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    More details on the Onkyo TX-RZ900

    Stacey B.

    Features & specs

    Amplification
    Number Of Channels ---
    Stereo RMS Power (watts) 140
    THD in Stereo 0.08 %
    Frequency Bandwidth (stereo) 20-20k Hz
    Minimum Impedance L/R 4 ohms
    Minimum Impedance Center 4 ohms
    Minimum Impedance Surround 4 ohms
    Amplifier Class ---
    Bluetooth
    Version Info Built-in
    Receiver Mode Yes
    Bluetooth Built-in
    Transmitter Mode No
    AAC Playback No
    aptX Playback No
    aptX-HD Playback No
    LDAC Playback No
    Features
    Apple AirPlay Built in
    Chromecast built-in No
    DTS Play-Fi No
    Alexa-compatible No
    Google Assistant-compatible No
    App Remote Control Yes
    Built-in Radio Tuner None
    On-Screen Display Thru HDMI
    Room Correction AccuEQ
    Multi-room Audio/Video
    Powered Multi-room Audio Output Yes
    Preamp Multi-room Audio Output Yes
    Multi-room HDMI Output Yes
    Total Number of Zones 3
    Playback from Digital Audio Inputs Yes
    Playback from Streaming Sources Yes
    Surround Processing
    Dolby Digital DD, EX, TrueHD, DD+
    Dolby Atmos Yes
    Dolby Atmos Height Virtualization ---
    DTS DTS, ES, DTS-HD, HDMA, DTS:X, Neo6,
    DTS:X ---
    DTS Virtual:X ---
    High-res Audio Playback
    From Network No
    From USB Thumb Drive (USB-A) No
    From Computer (USB-B) No
    Inputs
    Audio-Video Inputs 8
    Number of HDMI Inputs 8
    Component Video Inputs 2
    Audio-only Inputs 3
    Phono Input 1
    Optical Digital Inputs 3
    Coaxial Digital Inputs 2
    Multi-Channel Analog Input No
    Ethernet Port ---
    USB Connections 1
    Outputs
    HDMI Monitor Outputs 2
    Component Video Monitor Outputs 1
    Optical Digital Outputs None
    Coaxial Digital Outputs None
    Subwoofer Outputs 2
    Discrete Subwoofer Outputs No
    Multi-channel Preamp Output Yes
    Main Speaker Output Pairs 1
    Speaker Terminals Binding Posts
    HDMI Features
    HDMI Version 2.0a
    VRR (Variable Refresh Rate) No
    ALLM (Auto Low Latency Mode) No
    4K/120Hz-Capable Inputs No
    Audio Return Channel ARC supported
    Video Upscaling No
    HDR (High Dynamic Range) Support
    HDR10 No
    HDR10+ No
    HLG No
    Dolby Vision No
    Other Info
    DAC Bit Depth ---
    DAC Sample Rate ---
    FM Sensitivity Not Given
    Multibrand Remote Control Yes
    Learning Remote No
    Removable Power Cord IEC 2-prong
    Supports Wireless Rear Speakers No
    Width (inches) 17.125
    Height (inches) 7.933
    Depth (inches) 18.0625
    Weight (pounds) 39.7
    Parts Warranty 3 Years
    Labor Warranty 3 Years

    Product Research

    Audio Section
    Video Section
    Network/USB/Tuner Functions
    Multiroom Playback
    Convenience Features
    Bluetooth + Remote Control

    Audio Section

    7 Channel Amplifier: The Onkyo TX-RZ900 AV receiver features a 7-channel amplifier rated at 140 watts (into 8-ohms, at 20Hz-20kHz, with 0.08%, driving 2 channels). The AV receiver's amplifier employs independent block construction, WRAT, Push-Pull with 3-Stage Inverted Darlington Circuitry, and a high power Toroidal transformer for dynamic, detailed, clear sound.

    • Independent Block Construction: The AV receiver's power amplifier and preamplifier sections are separated inside the receiver's chassis to minimize interference and eliminate distortion.
    • WRAT (Wide Range Amplifier Technology): WRAT is based around a low negative-feedback circuit topology that works to reduce signal noise and distortion across the frequency range. A "closed ground-loop circuit" design is employed, in which each circuit has a separate link to the power supply. This helps to cancel individual circuit noise and keep the ground potential free of distortion. High Instantaneous Current Capability (HICC) enables WRAT amplifiers to immediately cancel the speakers' reflex energy and instantaneously send out the next signal. The same high current better manages speaker impedance fluctuations, which can negatively affect performance. Wide Range Amp Technology
      (WRAT) prevents phase shifting by pushing the roll-off point higher than the listening level frequency. Amplifying sound without phase shift creates an uncommonly clear, well focused, and realistic audio image.
    • Push-Pull Design (with 3-Stage Inverted Darlington Circuitry): The Onkyo receiver employs an efficient push-pull amplification design originally created for Onkyo's much higher-end receivers. The AV receiver's push-pull amplification design uses different transistors on the two front channels to separately amplify the positive & negative halves of the waveform. Meanwhile, 3-Stage Inverted Darlington Circuitry on all channels helps reduce distortion at the output stage. Together with the  push-pull amplifier design, the 3-stage inverted Darlington Circuitry shapes a clean, consistent signal to send to the outputs for ultra-low distortion & greater sound quality.
    • High Power Toroidal Transformer: Under the anti-resonant cover of the Onkyo receiver, you'll find a custom high power Toroidal transformer designed specifically for the receiver's audio circuitry that help to reproduce ultra low frequencies down to 5 Hz for wide dynamics of music and movie soundtracks.

    Amplifier Assignment: The 7-channel amplifier can be configured in a variety of ways to match your type of speaker setup.

    • Normal (7.1ch): The Onkyo TX-RZ900 can be setup to provide anywhere from 2.1ch to 7.1ch surround in your main listening area. In 7.1ch mode, you can choose either Surround Back or Front Height speakers (but not both).
    • Bi-Amp (5.1ch): The Surround Back/Front-High channels can be reassigned and used along with the Front channels to bi-amp the front speakers, providing improved bass & treble performance. When bi-amping the front speakers the receiver is limited to a 2.1ch - 5.1ch speaker configuration in the main room (no Surround Back or Front Height speakers)
    • Powered Zone 2 (7.1ch): In this configuration, you can connect Front, Center, Surround, Surround Back (or Front Height), and Zone 2 speakers to the AV receiver. When Zone 2 is off, up to seven channels will be used in the Main Zone. However, when Zone 2 is on, power to the two surround back (or front height) channels will be directed to the two speakers in Zone 2 and the Main Zone will receive only up to five channels of power.
    • Dolby Atmos (5.1.2ch): The Surround-Back/Front-High speaker channels are assigned to power a pair of overhead ceiling speakers or a pair of Dolby Atmos-enabled speakers to create 5.1.2ch Dolby Atmos surround sound. Zone 2 speaker can still be powered by the receiver in this configuration. When Zone 2 is off, all seven channels will be used in the Main Zone for Dolby Atmos. However, when Zone 2 is on, power to the Dolby Atmos channels will be directed to the two speakers in Zone 2 and the Main Zone will be limited to 5.1ch without Dolby Atmos.
    • Dolby Atmos (7.1.2ch; requires external amp): The Surround-Back/Front-High speaker channels are assigned to power a pair of overhead ceiling speakers or a pair of Dolby Atmos-enabled speakers, while the receiver's Surround-Back/Front-High pre-outs along with an external amp are use to power a second pair of  overhead ceiling speakers or a pair of Dolby Atmos-enabled speakers, to create 7.1.2ch Dolby Atmos surround sound. Zone 2 speaker can still be powered by the receiver in this configuration. When Zone 2 is off, all seven channels will be used in the Main Zone for Dolby Atmos. However, when Zone 2 is on, power to the Dolby Atmos channels will be directed to the two speakers in Zone 2 and the Main Zone will be limited to 5.1.2ch.

    384kHz/32-Bit DAC + Signal Processing: The Onkyo TX-RZ900 utilizes one premium-quality AK4458 digital-to-analog converter from Asahi Kasei for all channels. This 384kHz/32-bit DAC 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). The TX-RZ900 offers additional DAC signal processing to make sure your movie & music soundtracks sound their best.

    • Vector Linear Shaping Circuitry (VLSC): Onkyo developed Vector Linear Shaping Circuitry (VLSC) to reassemble the signal in its original form following processing. Unlike conventional filters, VLSC removes pulse noise generated in D/A conversion, allowing the sound wave to be reproduced with extremely high fidelity for a smooth analog signal. The signal's data is converted between sampling points and joined with analog vectors in real time to produce a smooth output wave form. The result is a virtually noiseless, smooth, analog signal that brings out even the most subtle of nuances in music sources.
    • PLL (Phase Locked Loop) Jitter-Cleaning Circuit Technology: PLL jitter-cleaning circuit technology reduces jitter by comparing the input and output phases of the digital signal and creating an accurate clock waveform. This enhances the precision of digital signal processing and noticeably improves audio quality. Jitter-cleaning technology works both for digital signals input via HDMI and for digital signals converted from analog signals inside the receiver itself.

    Dual 32-Bit DSP Engines & Multi-Channel Decoding: The receiver employs powerful and highly accurate Dual 32-bit processing DSP's (Digital Signal Processor) for better surround sound reproduction. The Onkyo TX-RZ900 AV receiver supports the following multi-channel (Dolby Digital, DTS, Dolby Pro Logic) decoding formats.

    Note: Dolby Digital and DTS listening modes can only be selected if your audio source is connected to the A/V receiver via a digital audio connection (HDMI, optical, or coaxial). To enjoy true 7.1ch Dolby Digital TrueHD and DTS-HD surround sound, the receiver must be connected to your Blu-ray player via HDMI.

    AccuEQ Room Calibration: Calibrating the sound to suit your room's acoustics is simple with Onkyo's AccuEQ auto-room calibration. Once you've connected your speakers, plug-in the included mic and wait a few moments as the TX-RZ900 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.

    Immersive Surround Sound: The Onkyo TX-RZ900 AV receiver goes beyond regular surround with the latest immersive surround sound formats - like Dolby Atmos, Dolby Surround, DTS:X, and DTS Neural:X.

    • Dolby Atmos: With Dolby Atmos, sound comes alive from all directions, including overhead, to fill your home theater with astonishing clarity, power, detail, and depth. The TX-RZ900 has the processing power to run a more enveloping 5.1.2ch Dolby Atmos layout utilizing ceiling mounted or Dolby Atmos-enabled speakers (sold separately). A 5.1.2ch speaker configuration is based upon a traditional 5.1 speaker layout complemented by 2 overhead or Dolby Atmos-enabled speakers.
    • Dolby Surround: Dolby Surround offers an enhanced cinema experience to your Dolby Digital (Plus/TrueHD) and DTS (ES/HD) movie soundtracks using your existing 7.1ch or Dolby Atmos speaker setup. Dolby Surround enhances audio definition by improving the spatial dimension and overall audio definition of movie soundtracks. It does this by using four distinct surround zones that provide greater control over the exact placement of each detail in a movie sound track, so audio can be matched more accurately to the video on screen; this means more depth and greater realism for your movies. As a result, individual sounds are clearer and more distinct. It also improves the surround sound experience across the entire theater by widening the listening "sweet spot".
    • DTS:X (via future firmware update): DTS:X will be enabled through an online firmware update coming later this year. DTS:X is the next generation object-based, multi-dimensional audio technology from DTS. Unbound from channels, DTS:X conveys the fluid movement of sound to create an incredibly rich, realistic and immersive soundscape - in front of, behind, beside and above the audience - more accurately than ever before. DTS:X offers the ability to automatically adapt the audio to the speaker layout that best fits your space.
    • DTS Neural:X (via future firmware update): DTS Neural:X will be enabled through an online firmware update coming later this year. Further, DTS:X incorporates Neural:X, the latest spatial remapping technology from DTS, which provides a fully immersive output for all types of source content; this includes DTS bitstreams and non-encoded (PCM) data. Neural:X delivers a thrilling sense of immersive sound to your speaker layout regardless of the original source format.

    THX Select 2 Plus Certified: The TX-RZ900 AV receiver is THX Select 2 Plus certified. Founded by George Lucas, THX develops stringent standards that ensure movies are reproduced in movie theaters and home theaters just as the director intended. From early design concepts to product rollout, THX works with its manufacturing partners at each step of product development. Every detail is meticulously mapped to the THX performance standards. And THX engineers spend countless hours testing and analyzing each product for sound quality, usability and interoperability. The result of this collaborative process is a THX Certified receiver, amplifier or pre-amplifier designed from the ground-up to present your favorite movies, music, and games in 5.1ch to 7.1ch surround sound loud and clear at studio reference volumes. THX Select 2 Plus is specified for rooms where the screen-to-seat viewing distance is 10-12' and the room volume is 3,000 cubic feet or greater. Additional features of THX Select 2 Plus certification includes:

    • Timbre Matching: The human ear changes our perception of a sound depending on the direction from which the sound is coming. In a movie theater, there is an array of surround speakers so that the surround information is all around you. In a home theater, you may only have two speakers located to the side of your head. In this case, the Timbre Matching feature filters the information going to the surround speakers so that they more closely match the tonal characteristics of the sound coming from the front speakers. This ensures seamless panning between the front and
    • Adaptive Decorrelation: In a movie theater, a large number of surround speakers help create an enveloping surround sound experience. If a home theater only has two sidewall surround speakers, the surround speakers may sound similar to headphones lacking spaciousness and envelopment. Surround sounds will also collapse toward the closet speaker as you move away from the middle seating position. Adaptive Decorrelation slightly changes one surround channel's time and phase relationship with respect to the other surround experience as in a movie theater using only two speakers.
    • Advanced Speaker Array: ASA is a proprietary THX technology which processes the audio on the two side and two back surround speakers for the optional surround sound experience. When you set up your home theater system using eight speaker outputs (Front Left, Center, Front Right, Surround Right, Surround Back Right, Surround Back Left, Surround Left, and Subwoofer), be sure to go to the THX Audio Setup screen and choose the setting that closely corresponds to the back speaker spacing. This will reoptimize the surround sound field. ASA is used in three modes: -THX Select2 Cinema, THX Select2 Music and THX Select2 Games.
    • THX Loudness Plus: THX Loudness Plus compensates for the tonal and spatial shifts that occur when the volume is reduced by intelligently adjusting ambient surround channel levels and frequency response. With THX Loudness Plus, home theater audiences can experience the rich details in a surround mix at any volume level.
    • Boundary Gain Compensation: If your listening room layout (for practical or aesthetic reasons) locates most of the listeners close to the rear wall, the resulting bass level can be sufficiently reinforced by the boundary that the overall sound becomes "boomy". THX Select2 Plus receivers contain a Boundary Gain Compensation (BGC) feature to improve bass balance.

    Onkyo Original DSP Modes: Onkyo's Original DSP Modes, combined with Dolby Digital/DTS/Dolby Pro Logic processing, produce more realistic, powerful sound effects for your movie and music sound tracks based on the type of content and your home theater setup. You can choose from the following:

    • Orchestra: For classical or operatic music.
    • Unplugged: For acoustic instruments, vocals, and jazz.
    • Studio-Mix: Suitable for rock or pop.
    • TV Logic: Adds realistic acoustics to TV shows.
    • Game: The receiver offers four different Gaming modes - RPG, Action, Rock, and Sports.
    • All Ch Stereo: Stereo sound from all speakers. Ideal for background music.
    • Full Mono: All speakers output the same sound in mono.
    • Theater-Dimensional (T-D): Theater-Dimensional circuitry takes the complexity out of conventional surround-sound setups and lets you experience the excitement of surround sound from as few as two ordinary speakers. Theater-Dimensional's unique multi-speaker modes let you place up to five speakers conveniently by the TV, for the most realistic virtual-surround sound possible.

    Audiophile Listening Modes: The Onkyo TX-RZ900 offers two audiophile listening modes which bypass the receiver's tone & DSP processing for higher sound quality performance. In Direct mode, audio from the input source is output without surround-sound processing. This mode delivers pure sound with minimum sound quality adjustment and filtration. In Pure Audio mode, the display and video circuitry are turned off, minimizing possible noise sources for the ultimate in high-fidelity audio reproduction.

    Surround Parameters: The Onkyo TX-RZ900 lets you tweak and fine tune specific surround sound modes to suit your preference.

    • Dolby Pro Logic II Music Settings: While listening in the Dolby Pro Logic II Music format, there are three further enhancements you can adjust; Panorama: (broadens the front stereo image to the surround speakers to provide a wraparound effect), Dimension (allows you to move the sound field forward or backward), and Center Width (allows you to adjust the width of the center channel).
    • Center Image: In the Neo:6 Music mode, the Center Image feature adjusts the output of the left and right channels relative to the center channel, allowing you to make the center channel more or less dominant as needed. This improves the image of the center channel, especially when the listener is off-center. Adjustment varies from 5 (nothing subtracted from the L/R channels) to 0 (L/R channel output is cut in half).
    • Center Spread: Adjusts the width of the soundfield of the front channels when playing in the Dolby Surround listening mode.
    • Listening Angle: While listening in the Theater Dimensional mode you can adjust the listening angle to either Wide (if listening angle is 40°) or Narrow (if listening angle is 20°).

    Audio Enhancements: The Onkyo TX-RZ900 receiver provides various audio enhancements to deliver a high-quality listening experience every time.

    • Music Optimizer: The Music Optimizer function enhances the sound quality of compressed music files. The Music Optimizer function only works with PCM digital audio input signals with a sampling rate below 48kHz and analog input signals.
    • Dialog Control & Normalization: Dialog Control lets you increase the dialog portion of the audio in 1 dB steps up to 6 dB so that you can make dialog easier to hear over background noise. Dialog Normalization (DialogNorm) is a feature of Dolby Digital, which is used to keep the programs at the same average listening level so the user does not have to change the volume control between Dolby Digital, Dolby Digital Plus, and Dolby TrueHD programs.
    • Late Night Feature: The Late Night feature limits the dynamic range of Dolby Digital recordings. Limiting the dynamic range makes it easier to find a volume that ensures the quiet sounds are not too quiet and the loud sounds are not too loud for night time listening. This allows you to comfortably listen to without the need to constantly adjust the volume to keep from waking family/neighbors. The choices are: Off, Low, and High. This feature only works with Dolby Digital Encoded software and the depth of the feature will vary based on the individual software package.

    Bass Management: The Onkyo AV receiver offers Tone Control and Phase Matching Bass technology to get the most bass impact out of your system.

    • Tone Controls: You can independently adjust the Bass (50Hz) and Treble (20kHz) of the TX-RZ900 from -10 to +10 dB.
    • Phase Matching Bass: Onkyo's Phase-Matching Bass optimizes low frequencies while preserving mid-range clarity. This means that powerful bass plays back with clear vocals; it doesn't overpower them.
    • Double Bass: You can also activate the Double Bass function in order to boost bass output even more by feeding bass sounds to the front left/right speakers, center-channel, and powered subwoofer.

    Volume Setup: The Onkyo AV receiver provides the following volume settings.

    • IntelliVolume: With IntelliVolume, you can set the input level for each input (+/-12dB) selector individually. This is useful if one of your source components is louder or quieter than the others. This function does not work in Zone 2.
    • Maximum Volume: Use this feature to set the receiver's maximum volume level. This feature is useful to avoid turning the volume too loud by mistake. You can set the Max Volume from 30-79 (max), or Off (disabled).
    • Power On Volume: Use this feature to set the volume level when the power is turned on. You can choose between Last (same as the volume when the unit was turned off), Min (0), or 1-79.
    • Headphone Level: With this setting, you can specify the headphone volume (+/-12dB) relative to the main volume. This is useful if there's a volume difference between your speakers and your headphones.

    Audio Inputs/Outputs: The Onkyo AV receiver offers a variety of analog and digital audio inputs/outputs.

    • Assignable Digital Inputs: The Onkyo receiver is equipped with three optical digital inputs and two coaxial digital inputs. All digital inputs are assignable. You can choose auto decoding , PCM, or DTS for the digital audio inputs. Auto will decode the signal in its original form (Dolby Digital, DTS, PCM, etc), PCM decodes the signal to 2-channel, while DTS decodes only DTS formatted sources.
    • Phono Input: The Onkyo AV receiver is fitted with a Phono input and ground terminal for connection of a turntable (MM).
    • Binding-Post Speaker Terminals: There are color-coded binding-post terminals for all speaker connections - Front, Center, Surround, Surround Back/Front Height, and Zone 2. The binding post terminals will accept bare-wire, pin-connectors, and banana plugs (single/dual). Use 4- to 16-ohm speakers.
    • 7.2ch Pre Outs: The Onkyo TX-RZ900 features 7.2ch pre-amp outputs (Front, Center, Surround, Surround Back/Front Height/Front Wide, and Dual Subwoofer) for connection of an external power amplifier. The dual sub outputs share the same input signal and are not discrete.
    • Headphones: When headphones are plugged into the full-size 1/4" jack on the front panel, all the speakers are automatically muted.
    Video Section

    HDMI 2.0a: The TX-RZ900 has eight HDMI 2.0 inputs (7 rear/1 front) and two HDMI 2.0a outputs for connecting Blu-ray/DVD players, Satellite/Cable boxes, Game Consoles, and other video components to your TV. The front HDMI input is fixed as the Aux input, while the seven rear-panel HDMI inputs are assignable to any of the other inputs. The dual HDMI outputs can simultaneously output the same audio/video signal to two TVs or you can assign the second HDMI output to Zone 2 to display a different HDMI source in another room (video is output at the resolution supported by both TVs). The HDMI jacks can accept and switch 480i, 480p, 720p, 1080i, 1080p, or 4K video signals to a HDTV. All HDMI jacks will also support uncompressed standard or high definition digital video along with the following audio signals; 2-channel linear PCM, Multichannel linear PCM (up to 7.1ch), and Bitstream (Dolby Digital/DTS, etc.). Additional HDMI features include -

    • 4K (60Hz)/HDCP 2.2/4:4:4: The receiver's HDMI jacks supports the latest HDMI 2.0a specifications, plus HDCP 2.2 compatibility for the latest formats and technologies planned for Hollywood content (HDCP 2.2 is only supported on HDMI 1-5 inputs and both HDMI outputs). HDMI 2.0a offers a significant increase in bandwidth (up to 18Gbps) to support new features such as 4K@50/60 (2160p), which is 4x the clarity of 1080p/60 video resolution, and 4:4:4 color space for uncompressed color real-life color.
      High Dynamic Range (HDR):
      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 (only available on HDMI 1-5 inputs and both monitor outputs).
    • Deep/x.v.Color Support: The receiver also supports Deep Color and x.v.Color content, which can display a larger color range than standard-definition schemes. The result is a more lifelike, vibrant picture.
    • 3D-Ready: All HDMI jacks will accept 3D video from your 3D-ready Blu-ray player and output the video signal in 3D via the receiver's HDMI monitor output to your 3D-ready flat-panel television.
    • ARC (Audio Return Channel): The receiver's main HDMI output features ARC (Audio Return Channel). This feature allows audio to be sent from your compatible HDTV to your receiver through the same HDMI cable already being used to send audio and video to your HDTV. This eliminates the need for extra cables connected to your television. The sub HDMI monitor output does not support this feature.
    • Auto Lip-Sync: The Lip-Sync function can automatically synchronize HDMI audio and video (for any HDMI jack) that has gotten out of sync due to the complex digital video processing being performed by your HDMI-compatible TV. With HDMI Lip-Sync, the audio delay required to synchronize the audio and video is calculated and applied automatically by the AV receiver. You can also manually correct the audio delay from 0 (no delay) to 500 milliseconds; in 5 millisecond steps.

    Analog-to-HDMI Conversion: Analog composite and component video signals (480i only) input to the receiver will be converted to HDMI signals and then output to your receiver via HDMI. The resolution remains the same and is not upscaled.

    HDMI Through: When enabling the HDMI Through function, regardless of whether the AV receiver is "on" or in "standby" both audio and video streams from an HDMI input will be output to your television, via the receiver HDMI monitor output. You can select between 3 HDMI Through functions modes.

    • Auto: Detects the signal and automatically selects the input sources.
    • Source: Selects the input source (BD/DVD, VCR/DVR, CBL/SAT, Game, PC, Aux, TV/CD, Port) for which the HDMI Through function in enabled.
    • Last: The HDMI Through function is activated on the input source selected at the time of setting the AV receiver to the "standby" mode.

    Analog Video Inputs: The receiver features three composite video inputs and one composite video monitor output which support 480i video signals only. There are also two component video inputs and one component video output which support up to 1080i video signal.

    Video Select: It is possible to play audio and video from different sources. For example, you can play audio via Bluetooth and video from your BD/DVD player. This function is only effective when an input with audio only (Network, Bluetooth, or Tuner) has been selected initially.

    Network/USB/Tuner Functions

    Wired or Wireless Network Connection: The Onkyo TX-RZ900 AV receiver supports a wired or wireless network connection. Via the AV receiver's network connection, you can enjoy music files stored on your computer and listen to internet radio through a variety of online services.

    • Ethernet (LAN) Jack: The Onkyo AV receiver is equipped with an Ethernet (RJ-45) jack for connecting the player to your home network and computer. Connecting the A/V receiver's Ethernet port to a 100Base-TX switched Ethernet network is recommended for best results. Use a shielded CAT-5 Ethernet cable to connect the receiver to your home network.
    • Built-in Wireless LAN: The AV receiver also features built-in WiFi that allows you to wirelessly connect to your home network, so you can enjoy the benefits of a cable-free network environment. A wireless connection requires a home network with a WiFi-enabled access point (IEEE 802.11 b/g/n). Supports WPS, WEP, and WPA security.

    AirPlay Compatible: AirPlay lets you stream your favorite songs directly from your Apple iOS (4.3.3+) device or from your iTunes (10.2.2+) library on your Windows PC or Mac computer to the AV receiver, over your home's wireless network connection. From your Apple iOS device you are able to stream stored music on your device, downloaded music apps, and music on your iCloud to the receiver. From your Windows or Mac you can stream your stored iTunes music library on your computer to the AV receiver; you can even download Apple's free Remote App onto your compatible iOS device to browse and control playback functions of the music stored in your iTunes music library on your computer that is being streamed to the AV receiver. With AirPlay you also get to see song/artist information via the receiver's front-panel display.

    DLNA & USB Music Files: You can stream a variety music files from your Windows PC, DLNA-certified music server, or a USB mass storage class device. Compatible music file formats include MP3 (8-320kbps; 16-48kHz), WMA (47-320kbps), WMA Lossless (16/24-bit; 44.1-96kHz), WAV (8/16/24-bit; 8-192kHz), AAC (8-320kbps; 8-96kHz), FLAC (8/16/24-bit; 8-192kHz), Apple Lossless (16/24-bit; 8-96kHz), Ogg Vorbis (48-500kbps; 8-48kHz), DSD (2.8MHz/[5.6MHz DLNA only]), and LPCM (16-bit; 44-48kHz). You can control basic playback functions of your music library from the included remote control and receiver's front-panel display; such as Folder/File Select, Play/Pause, Stop, Fast Forward/Rewind, Previous/Next Track, and Repeat/Random. A total of 20,000 music files/folders is supported.

    • DLNA Certified: Because the TX-RZ900 is DLNA certified, you can play back music files stored on your Windows  PC (w/ Windows Media Player 11 or 12) or a DLNA (ver.1.5) compatible media server through the receiver. Playback control can be done from the receiver's remote control or your DLNA-certified computer/server.
    • USB Mass Storage Class: This AV receiver is equipped with a front-panel USB (type-A) port that allows you to enjoy a variety of music files from a USB mass storage class memory device; such as your Android smartphone (Froyo/Gingerbread OS only), portable MP3 player, or USB thumbdrive (all formatted in FAT 16/32). USB portable audio players that can be charged via USB will be charged when plugged into the stereo receiver's USB port (5V/1A); even in standby mode. USB hubs and USB devices with hub functions are not supported. MP3 players containing music files that are managed with special music software are not supported. Apple iPod/iPhone/iPad and newer Android devices are not supported via USB.

    Internet Radio: The Onkyo TX-RZ900 lets you access various Internet Radio providers through its wired or wireless network connection. The TX-RZ900 will display station name and program-related information; such as artist name, song/album title, and elapsed playing time. You can preset up to 40 of your "favorite" Internet radio stations for easy recall.

    Music Service Description
    TuneIn With more than 70,000 radio stations and 2 million on-demand programs registered, TuneIn is a service where you can enjoy music, sports and news from all over the world.
    Pandora Pandora is a free, personalized Internet radio service that plays the music you know and helps you discover music you'll love. You can select Internet radio stations by Artist, Song, or Genre.
    Spotify Connect If you subscribe to Spotify Premium and have the Spotify App on your Apple iOS or Android smartphone, you can stream Spotify to the AV receiver. Spotify is a digital music service that gives you on-demand access to one of the largest music libraries in the world (over 15 million tracks and counting). Spotify makes it easier than ever to discover, manage, and share music with your friends. You can browse music by artist, album, track, or most popular; and create your own music library with customized playlists.
    SiriusXM SiriusXM Internet Radio lets you listen to over 120 channels of commercial-free music, talk radio, news, sports, and more.
    Slacker Slacker is a free, personalized Internet radio service that lets you choose the music you want to listen to. You can choose Internet radio stations by genre, or create custom station by Artist name or Song title.

    AM/FM Tuner: With the built-in tuner you can enjoy AM and FM radio stations. You can store your favorite stations as presets for quick selection. You can store a combination of up to 40 of your favorite FM/AM radio stations as presets. You can also tune directly to a specific station by using the numeric keypad on the included remote control.

    Multiroom Playback

    Zone 2 HDMI Output (Audio/Video): The Onkyo receiver also provides a Zone 2 HDMI output, so two different HDMI audio/video feeds can be sent to two different displays at the same time directly from the receiver (HDMI 1-4/Aux connected input sources only). HDMI Zone 2 will output up to 4K video and 2-channel audio for the HDMI input source selected. Video will be output at the highest resolution supported by both TVs. If you have the same HDMI source playing back in the main room and Zone 2, then the main room is also limited to 2ch PCM audio.

    • Compatible Sources: HDMI 1-5 connected input sources only (up to 4K/2ch PCM).
    • Incompatible Sources: Tuner, Analog, USB, Bluetooth, Network, and Optical/Coaxial Digital audio sources; plus analog video sources.

    Zone 2 Speaker- & Line-Level Output (Audio Only): Zone 2 features line-level and speaker audio outputs for playback of a different analog source in a second room. This way, Zone 2 can be powered by a separate amplifier (keeping 7.2ch playback in your main room) or by the TX-RZ900's built-in amplifier (limiting the main room to 5.2ch). When powering Zone 2 with the receiver's built-in amplifier, listening modes that require surround back or front high/wide speakers are unavailable. You cannot power Zone 2 with the receiver's built-in amplifier, if you are bi-amping your front speakers. The volume of Zone 2 can be controlled from the receiver when using the speaker outputs or line-level outputs, and from your add-on integrated amp when using the line-level outputs.

    • Compatible Sources: HDMI 1-5 (2ch PCM), Optical/Coax Digital (2ch PCM), Tuner, Analog, USB, Bluetooth, and Network audio sources.
    • Incompatible Sources: Optical/coaxial digital audio sources, HDMI sources, and any video source.

    Zone 3 (Audio Only): Zone 3 allows playback of a separate analog source in 2-channel stereo in a third room of your home. Zone 3 features line-level outputs only. This way, Zone 3 can be powered by a separate integrated amplifier (keeping 7.2ch playback in your main room). The volume of Zone 3 can be controlled by the AV receiver or your separate integrated amp's remote.

    • Compatible Sources: Tuner, Analog, USB, Bluetooth, and Network audio sources.
    • Incompatible Sources: Optical/coaxial digital audio sources, HDMI sources, and any video source.

    Zone 2/3 Notes:

    • With "Net" and "Bluetooth" sources, you cannot select different inputs for the main room and separate room. For example, if "Net" has been selected in the main room and then "Bluetooth" is selected as playback source in the separate room, the input in the main room will change to "Bluetooth" accordingly. Furthermore, you cannot select separate network services for the main room and a separate room with the "Net" input.
    • When listening to AM/FM broadcasting, you cannot select different stations for the main room and a separate room. Therefore broadcasting of the same station will be heard in the both rooms.
    • DSD audio cannot be played back in Zone 2 or Zone 3.

    Whole House Mode: The Whole House Mode is useful when you want to simply add extra background music to your home party. This mode allows you to enjoy the same stereo music as the main room in separate rooms (Zone 2/3). The Whole House Mode selects the same input source for Zone 2/3 as the main room. During the Whole House Mode, stereo playback is automatically selected for all zones. The Main Zone & Zone 2/3 will play at the same volume level.

    Convenience Features

    On-Screen Menu w/ Setup Assistance (via HDMI): The Onkyo AV receiver offers an on-screen menu system through its HDMI output. The simple on-screen display combines text and graphics that make setup and other operations extremely easy. The initial setup assistant takes you step-by-step through speaker configuration, source connection, remote programming, and network connection.

    Gapless Playback: Many live and classical albums have no gaps in the music. Gapless playback ensures that there are no pauses between audio files. This provides playback with no interruptions, the way it was meant to be heard. Compatible with WAV, FLAC, and ALAC music files via USB or DLNA.

    Name Edit: You can enter a custom name for each individual input selector and radio preset for easy identification. When entered, the custom name will appear on the display. This function cannot be used for the AM/FM, Network, USB, and Bluetooth input selectors.

    Display Dimmer: The front-panel display brightness has three settings - Dim, Dimmer, and Normal.

    Timers: The receiver features a programmable Sleep Timer, Auto Standby function, and Screen Saver.

    • Auto Standby: The AV receiver will automatically go into Standby mode, if there is no operation for 20 minutes with no audio/video signal input.
    • Sleep Timer: From the remote, you can set the unit to automatically turn off after as much as 90 minutes or as little as 10 minutes; choices are presented in 10 minute increments.
    •  Screen Saver: If there is no video signal on the current input source and no operation for a specific time, a screen saver automatically comes on. You can set the time (3min/5min/10min/off) until the screen saver activates itself. Once active, the screen saver will go off and the screen will return to its previous state if the AV receiver is operated in any way.

    Firmware Updates: Future firmware updates are available from the Onkyo website through the receiver's Network or USB connection. Visit Onkyo's online Download Center for the latest firmware updates.

    Bluetooth + Remote Control

    Built-in Bluetooth: The Onkyo AV receiver features built-in Bluetooth (version 2.1+EDR) with support for profiles A2DP 1.2 and AVRCP 1.3. You'll be able to wirelessly stream music from your Bluetooth-enabled Apple iPod/iPhone/iPad, Android smartphone/tablet, Windows Phone/PC, or Mac laptop/computer to the Onkyo receiver. You will also be able to control basic playback functions (Play/Pause, FF/RW, Skip) using the receiver's remote control. Advanced music operation will still need to be handled from your Bluetooth-enable device. There is no song/artist information display on the receiver. Continue to use your Bluetooth device's screen to view song/artist info.

    Note: Due to the differences in Bluetooth technology, some Bluetooth enabled devices may be incompatible, function improperly, or may not support all features when used with the Onkyo receiver.

    Onkyo Remote App (for Apple iOS & Android): The Onkyo Remote App (from Apple's App Store & Google Play) allows you to operate the Onkyo AV receiver from your Apple iOS (4.3+) or Android (2.1+) device, using your home's WiFi network. The Onkyo Remote App lets you you access Internet Radio stations, AM/FM stations, DLNA content, and Input sources right from your mobile device. Content information will be displayed on the device's touchscreen. You also get to adjust tone controls, listening modes, and speaker volume from your compatible Apple iOS or Android device. The Onkyo Remote App even allows you to wirelessly stream audio stored on your Apple iOS or Android device to the Onkyo AV receiver, and lets you control audio output for up to 3 Zones. The Onkyo AV receiver and and your compatible Apple iOS or Android device must be connected to the same WiFi network.

    Multi-brand Remote: The receiver comes with an IR remote control for wireless operation of this receiver and other HDMI-connected sources (via HDMI CEC). In addition to the receiver, the remote can be programmed using the receiver's on-screen menu to control popular brands of TVs, Blu-ray players, DVD players/recorders, DVRs, VCRs, etc.

    HDMI Control: This function allows HDMI-CEC compatible components or RIHD-compatible components connected via HDMI to be controlled with the TX-RZ900 . The AV receiver offers the following HDMI-CEC controls.

    • The AV receiver will enter Standby mode when the power of the TV is turned to Standby.
    • You can set on the menu screen of the TV to either output the audio from the speakers connected to the AV receiver, or from the speakers of the TV.
    • It is possible to output the audio/video from the antenna or from the input jack of the TV from the speakers connected to the AV receiver.
    • Input to the AV receiver can be selected with the remote controller of the TV.
    • Operations such as volume adjustment or similar for the AV receiver can be performed from the remote controller of the TV.

    Remote Connections: The TX-RZ900 contains RI control, IR Remote, 12V trigger, and RS-232C connectivity.

    • RI Remote Control Jack: The 1/8" RI remote control jack allows you to connect this receiver to other compatible Onkyo components.
    • IR Input: The 3.5mm IR input jack allows you to control the receiver without line-of-sight access using an optional IR remote control system and locating the remote sensor in sight.
    • 12 Volt Trigger: The 3.5mm minijack output can be connected to the 12-volt trigger input on a power amplifier in Zone 2. When the zone is turned on, a 12-volt trigger signal is output.
    • RS-232C Port: The TX-RZ900 has an RS-232C port for connection to external control systems from companies such as AMX or Crestron.

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    Customer Q&A

    5 questions already asked

    Q
    Does this receiver have the capability of having all 7.1 speaker connections power 4 ohms speakers? Or is the receiver limited to the 2 front speaker connections only to power 4 ohms speakers?
    greg l  Mar 18, 2016
    1 answer
    A
    I'm running a 5.1 with all speakers rated at 6 ohms. The less resistance, the more power the receiver puts out. I don't see why you can't run 7.1 at 4 ohms. I would check with tech support if you're unsure. This receiver is amazing, does more than I'll ever need.
    david  Mar 20, 2016
    Q
    can i run 5.2.4. using the external amp ( four ceiling speakers) ? and can i run dual sub-woofers ?
    william  Feb 26, 2016
    1 answer
    A
    No. This model will support 2 Atmos channels; 5.1.2 or 7.1.2 (with an external amplifier). For 5.1.4 with an Onkyo model, you'll need the TX-NR1030 model (and will not need an external amp): http://www.crutchfield.com/p_580TXN1030/Onkyo-TX-NR1030.html?tp=179 And yes, you can use two powered subwoofers with either model. I hope that helps! My Bio: http://www.crutchfield.com/Support/Bio.aspx?bio=5
    ryan  Mar 02, 2016 (Staff)
    Q
    can the TXRZ-800 and TXRZ-900 run two front 4 ohm speakers?
    timothy n  Feb 11, 2016
    1 answer
    A
    Both of those models are capable of powering 4 ohm speakers on the front channels as well as all of its amp channels.
    jason  Feb 13, 2016 (Staff)
    Q
    Can the TX-RZ900 run 7.1.4 with an external amp?
    william  Jan 29, 2016
    1 answer
    A
    No. The TX-RZ900 has two Atmos configuration options: 5.1.2 (no external amp required) and 7.1.2 (external amp required). You will find this information, and more, by clicking the "Details" tab on the receiver's main webpage and scrolling down below the "Features & Specs" table. I hope that helps! My Bio: http://www.crutchfield.com/Support/Bio.aspx?bio=5
    ryan  Feb 01, 2016 (Staff)
    Q
    How do you configure the TX-RZ900 for 7.1.2 with a preamp? The preamp jacks combine height and back. Leaving you with a total of 7.2 total preamp outs not 7.2.2
    nathan  Dec 01, 2015
    1 answer
    A
    To setup a 7.1.2 system, the Surround-Back/Front-High speaker channels are assigned to power a pair of overhead ceiling speakers or a pair of Dolby Atmos-enabled speakers, while the receiver's Surround-Back/Front-High pre-outs along with an external amp are used to power a second pair of overhead ceiling speakers or a pair of Dolby Atmos-enabled speakers, to create 7.1.2ch Dolby Atmos surround sound.
    david  Dec 03, 2015 (Staff)
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