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Premium RZ Series AVRs Get a High-Octane Upgrade with Strengthened Amps and IMAX® Enhanced Certification

April 23, 2019

ONKYO, JAPAN. Onkyo has added two THX® Certified Select™ and IMAX® Enhanced*1 certified Network A/V Receivers to its premium RZ Series line, each featuring exclusive high-performance amplification systems and state-of-the-art multi-room audio capabilities for enthusiasts demanding a visceral entertainment experience.

The 9.2-ch TX-RZ840 (215 W/Ch, 6 ohms, 1 kHz, 10% THD, 1-ch driven) and 9.2-ch TX-RZ740 (185 W/Ch, 6 ohms, 1 kHz, 10% THD, 1-ch driven) provide a stable, easy-to-use platform for multi-room entertainment and are perfectly adapted to high-end Dolby Atmos® and DTS:X® surround-sound through speaker layouts of up to 7.2.4 channels (with external power amp) as well as electrifying musicality with stereo sources. Dolby Surround® and DTS® Neural:X upmixers employ height speakers when playing legacy soundtracks, while Dolby Atmos Height Virtualizer*1 enables immersive listening with Dolby® formats by creating a virtual surround and height effect from traditional speaker layouts.

The AVRs are released under the IMAX® Enhanced*1 program, which features DTS:X immersive audio decoding that is optimized to properly reproduce the full dynamic range of IMAX theatrical sound mixes available in digitally re-mastered IMAX Enhanced content. The IMAX Mode reproduces lMAX Enhanced content at the highest levels, just as the filmmakers intended. IMAX Enhanced versions of films, from Hollywood blockbuster movies to documentary films, are scheduled for 4K HDR streaming and Ultra HD Blu-ray™ release. Furthermore, the TX-RZ740 and TX-RZ840 are THX® Certified Select™ following 2,000 bench-tests in 75 categories, satisfying THX® requirements for cinema-reference volume in rooms where the viewing position is about 3.5 m from the screen.

As RZ Series, both products have upgraded Dynamic Audio Amplification (DAA) systems. DAA stabilizes high power delivery from a custom-made High-Current Low-Noise Power Transformer and customized high-current smoothing capacitors, resulting in accurate speaker control and truly spectacular dynamics. Discrete non-phase-shift amps capture a wide 5 Hz–100 kHz frequency response. An extruded aluminum heat-sink controls the length and pitch of resonance frequencies, limiting vibration, while the TX-RZ840’s heat-sink gains black anodized paint that improves cooling efficiencies and reduces thermal distortion. This model announces its hi-fi credentials with an aluminum front-panel and flap door.

All parts are selected on a listen-measure-listen basis rather than by their theoretical performance, which is a resource-intensive way to design, but one that results in subjectively and objectively better sound. A new HDMI® board features shorter signal-paths and larger, carefully refined grounds for clean A/V signals. Quad-core SoC (System on a Chip) is isolated to prevent interference, and the power-supply line is further strengthened for 4-ohm driving power. These enhancements result in improved S/N performance and faster dynamic response, and can be felt physically in deep, taut bass, and precise instrument separation and sound localization on an expanded soundstage.

The natural articulation of sound inside the listening space is facilitated by AccuEQ Advance 9-point room acoustic calibration. It measures sound at nine positions to precisely calibrate and EQ speakers and subwoofers and remove standing waves from the room. Standing waves occur when sound from the speakers resonates with sound reflecting off the walls, compromising its intended expression. During the calibration process, the system detects and compensates for background noise to ensure accurate equalization. AccuReflex™ optimizes 3D sound through Dolby enabled speakers by resolving phase-shift, resulting in a cohesive sound-field.

Amplified signals can be shared to speakers in up to three rooms (including Main room) at once with unique digital and analog sources playing in each zone (analog/HDMI/SPDIF/NET/Bluetooth®*2 in Zone 2 and analog/NET/Bluetooth in Zone 3), or the same content synced via Zone 2 and Zone 3 speaker outputs. With nine channels, separate Zone 2 and Zone 3 DACs, and 11.2-channel pre-outs, customers have freedom to choose from a variety of possible speaker layouts with switchable, app-controlled audio in other areas of the home.

For listeners expanding a multi-room network audio ecosystem, both products feature Works with Sonos, Chromecast built-in*3, AirPlay 2, DTS Play-Fi®, and FlareConnect™*4. As the heart of home entertainment, users can enjoy integrated Amazon Music*5, Spotify®*5, TIDAL*5, Deezer*5, and TuneIn*5 services on their home cinema or share it around the home to supported speakers. RZ Series receivers can join an existing Sonos Home Sound System, or be the start of a new one, just by pairing with a Sonos Connect*6. They will wake, change inputs, and play at the desired volume on command from the Sonos app*7. With Chromecast built-in, users can stream any music from smartphone, laptop, or PC to the receiver with ease. Control playback with Chromecast-enabled apps from iPhone, iPad, Android™ phone or tablet, Mac or Windows® laptop, or Chromebook. When used together with a smart speaker featuring the Google Assistant, content can be cued, played, and controlled by voice.

The TX-RZ840 and TX-RZ740 feature a new quad-core SoC. It evolves network functions and supports the high-speed 802.11ac 2x2 MIMO Wi-Fi®*8 specification while compatible with dual-band 802.11b/g/n routers. Both AVRs are equipped for Hi-Res Audio playback. AKM multichannel DAC supports 384 kHz/32-bit digital-to-analog conversion, and traces of digital pulse-noise from the D/A conversion process are erased by VLSC™ (Vector Linear Shaping Circuitry) on the Front L/R channels. The TX-RZ840 supports DSD Direct 11.2 MHz*9 playback, while both products can convert DSD 11.2/5.6/2.8 MHz*9 to pristine PCM signals. FLAC, WAV [RIFF], AIFF, and ALAC are supported to 192 kHz/24-bit*10 resolution. Vinyl record collectors will note the discrete MM phono pre-amp on both receivers and Pure Audio mode for natural analog sound. SPDIF and coaxial digital inputs handle lossless audio from a variety of players and devices.

Several exclusive features increase flexibility and enhance the user experience. On the interface side, the OSD includes a function that displays A/V input-output information. Users can view source data such as HDR format, video resolution, frame-rate, and audio codec, and compare it to the output playback settings without program interruption, ensuring optimal playback quality. A new DSP-controlled Vocal Enhancer is accessed via keys on the remote control or front panel, and allows frequencies occupied by dialog to be raised or lowered through five steps. The user’s preferred start-up volume level for each A/V input can also be pre-set with a long push on the front-panel input key, while the receivers will power on automatically when an input key is touched. Stereo Assign Mode can switch front-speaker playback to ceiling speakers for ambient BGM listening.

The Zone B/Zone 2 line-out function has also been improved to support wireless headphone transmitter connection via analog RCA terminals, as well as hi-fi systems in another space. In Zone 2 mode, the same or different analog/digital sources (including SPDIF*2 and HDMI*2) can be played in either or both rooms at the same time. Zone B*11 mode is ideal for use with a supported wireless headphone transmitter. Listen to any main-room source through compatible wireless headphones for disruption-free late-night TV entertainment.

Both products have seven HDMI inputs (one front), Main output, and Sub/Zone 2 output*12 for a projector or second display. All inputs support 4K/60p, HDR10, Dolby Vision™, HLG (Hybrid Log Gamma), WCG (Wide Color Gamut) according to BT.2020, and HDCP 2.2. The TX-RZ840 also features eARC (Enhanced Audio Return Channel) on Main out, enabling HD audio transmission from an eARC-compatible TV to the receiver. It works with Dolby Atmos and DTS:X as well as Dolby® Digital, Dolby® TrueHD and DTS-HD Master Audio™ via tuner or video streaming apps built into Smart TVs. Both are generously equipped with analog and digital audio inputs as well as analog video inputs. These receivers are ready for professional installation with bi-directional Ethernet LAN for IP control, RS-232 serial control port, IR input, 12 V trigger out, OSD output, and optional rack-mount kit making for smooth custom integration with leading home automation systems.

Whether repowering a home cinema or selecting a first AVR to deliver uncompromising reference-grade sound with authentic emotional vibrancy, these two RZ Series products will surpass the very highest expectations.

Onkyo Corporation

*1 Activated with a future firmware update. *2 When set to Zone 2, SPDIF and HDMI support PCM signals, HDMI audio is available on inputs 1–3, and simultaneous playback of multiple audio sources is enabled. *3 The unit may automatically download and apply an Over-the-Air software update during setup. *4 FlareConnect is a proprietary network protocol that shares select audio sources between supported components. Please visit the Onkyo website for product compatibility information. *5 Service availability varies with region and subscriptions may be required. *6 Requires a Sonos Connect (sold separately). *7 Available free at the App Store and Google Play for iPhone, iPad, and Android devices. Please check device and OS requirements before installation. *8 Some countries or regions have regulations that affect wireless signal strength and the use of Wi-Fi channels. *9 DSD playback over Wi-Fi cannot be guaranteed in all network environments. *10 Supported sampling rates may vary depending on the network environment. ALAC is supported to 96 kHz. *11 When set to Zone B, encoded and non-encoded PCM playback for all inputs is enabled in Main and Zone B. *12 HDMI Zone 2 Out mode supports signals from HDMI inputs 1–3 only, and the same or separate sources can be output via Main and Zone 2 Out simultaneously. HDMI Sub Out mode supports signals from all HDMI inputs, and outputs the same source as the Main output only.

Due to a policy of continuous product improvement, Onkyo reserves the right to change specifications and appearance without notice. THX and the THX logo are trademarks of THX Ltd., registered in the U.S. and other countries. THX CERTIFIED SELECT and the THX SELECT application icon are trademarks of THX Ltd. For DTS patents, see Manufactured under license from DTS Licensing Limited. DTS, the Symbol, DTS and the Symbol together, DTS:X and the DTS:X logo, DTS Neural:X and the DTS Neural:X logo, and Play-Fi and the Play-Fi logo are registered trademarks or trademarks of DTS, Inc. © DTS, Inc. All Rights Reserved. Manufactured under license from IMAX Corporation. IMAX® is a registered trademark of IMAX Corporation in the United States and/or other countries. All Rights Reserved. Dolby, Dolby Atmos, Dolby Surround, Dolby Digital, Dolby Vision, and the double-D symbol are trademarks of Dolby Laboratories. The terms HDMI and HDMI High-Definition Multimedia Interface, and the HDMI Logo are trademarks or registered trademarks of HDMI Licensing Administrator, Inc. in the United States and other countries. SONOS is a trademark of SONOS, Inc. The Bluetooth® word mark and logos are owned by the Bluetooth SIG, Inc. Apple, AirPlay, Mac, iPad, and iPhone are registered trademarks of Apple Inc. App Store is a service mark of Apple Inc., in the US and other countries. Google, Android, Google Play, Chromebook, Chromecast built-in and other related marks and logos are trademarks of Google LLC. Wi-Fi® is a registered trademark of the Wi-Fi Alliance. The Wi-Fi CERTIFIED Logo is a certification mark of the Wi-Fi Alliance. Spotify and the Spotify logo are trademarks of the Spotify Group, registered in the U.S. and other countries. The Product with the Hi-Res Audio logo is conformed to Hi-Res Audio standard defined by Japan Audio Society. The Hi-Res Audio logo is used under license from Japan Audio Society. Amazon, Amazon Music, and all related logos and motion marks are trademarks of, Inc. or its affiliates. Blu-ray Disc™, Blu-ray™, Ultra HD Blu-ray™ and the logos are trademarks of the Blu-ray Disc Association. Dynamic Audio Amplification, FlareConnect, Music Optimizer, VLSC, and AccuEQ are registered trademarks or trademarks of Onkyo Corporation. All other trademarks and registered trademarks are the property of their respective holders.