9.2-Channel Network A/V Receiver

Product image

A higher standard of sound

The TX-RZ740 not only elevates sound, but also that satisfied feeling you get every time you switch it on. The extra weight of the custom transformer, custom 10,000 μF capacitors, and aluminum heat-sink speak of an amp built for high-current power, enabling 3D audio to exhibit true-to-life spatiality and pin-point localization. Bass force is terrific, dynamics blindingly fast, and resolution grainless. Next-Generation Network Audio gathers multi-room platforms supported by 802.11ac*1 Wi-Fi®, or enjoy powered and unpowered audio distribution. The receiver, which supports up to 7.2.4-ch of 3D sound with external amp, is certified for IMAX® Enhanced*2 and is THX® Certified Select™ for a theater-reference experience. From how it sounds to the way it makes you feel, the TX-RZ740 is made to savor now and in the future.

*1 Some countries or regions have regulations that affect wireless signal strength and the use of Wi-Fi channels.
*2 Enabled with a future firmware update.

Experience IMAX Enhanced Image

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.

THX Certified Select theater-reference sound Image

THX® Certified Select™ theater-reference sound

THX Certified Select guarantees the same reference volume level of a commercial theater in rooms where the viewing position is about 3.5 m from the screen. To gain certification for reference sound within strict THX® sound-quality parameters, receivers must pass 2,000 bench-tests in 75 categories covering 14,000 data points.

Dolby Atmos and DTS:X Image

Dolby Atmos® and DTS:X®

Dolby Atmos and DTS:X formats map sounds in 3D space, allowing them to move around the room and immersing your audience in the film. With 11.2-ch pre-outs and 11-ch processing, you can enjoy 3D sound through a 7.2.4 layout (external power amp required), or use built-in amps for a 5.2.4 or 7.2.2 layout. Enjoy classic titles through your height-enabled speaker system with Dolby Surround® and DTS® Neural:X finding cues in legacy soundtracks and upmixing for spatial playback.

Dolby Atmos Height Virtualizer Image

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 speakers.

* Enabled with a future firmware update.

Dynamic Audio Amplification with RZ Series Build Image

Dynamic Audio Amplification with RZ Series Build

DAA stabilizes power delivery for accurate speaker control and spectacular dynamics. High-Current Low-Noise Power Transformer and 10,000 μF custom high-current smoothing capacitors deliver power instantly while non-phase-shift amps reproduce a wide 5 Hz–100 kHz spectrum. An extruded aluminum heat-sink controls the pitch of resonance frequencies, limiting mechanical noise. Behind the front panel are hand-selected or custom fabricated parts with digital boards separate from analog circuitry. The result is visceral musicality that makes every note an emotionally moving experience.

New upgrades reduce noise and boost power Image

New upgrades reduce noise and boost power

Additional refinements control noise, boost power, and improve S/N performance. A new HDMI® board has shorter signal-paths and large, well-finished grounds for A/V signal integrity. SoC is isolated to reduce interference noise. The power-supply line is reinforced in pursuit of smooth power delivery. These contribute to punchier bass and improved localization on an expanded soundstage.

Next-Generation Network Audio makes multi-room easy Image

Next-Generation Network Audio makes multi-room easy

Access streaming content from Amazon Music, Spotify®, TIDAL, Deezer, and TuneIn*1 and share network audio around your home as part of a multi-room system via Works with Sonos, Chromecast built-in*2, AirPlay 2, DTS Play-Fi®, and FlareConnect™.

*1 Amazon Music which is integrated in this product is only available in U.S., U.K., Germany, Spain, Italy, France, and Japan. Also, available services may differ depending on your area.
*2 The unit may automatically download and apply an Over-the-Air software update during setup.

Works with Sonos Image

Works with Sonos

The TX-RZ740 can join your 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.

Chromecast built-in with the Google Assistant Image

Chromecast built-in with the Google Assistant

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

* Google Home is sold separately.
* The unit may automatically download and apply an Over-the-Air software update during setup.
Google, Google Home, Android, Google Play, Chromecast built-in and other related marks and logos are trademarks of Google LLC.

Whole home audio: just add speakers Image

Whole home audio: just add speakers

Orchestrate audio playback in up to three rooms at once using the Onkyo Controller app. The TX-RZ740 has two extra DACs to distribute unique or synced D/A audio sources via Zone 2 and Zone 3 speaker outputs, including HDMI®/SPDIF/NET/Bluetooth®. With nine amps, you can enjoy a 5.2.2-ch layout in Main with powered Zone 2 audio, or a 5.2-ch surround system in Main with powered audio distribution to Zone 2 and Zone 3.

Note: HDMI and SPDIF support PCM audio only. Zone 2 HDMI audio available on inputs 1–3. Zone 3 supports analog/NET/Bluetooth.

Quad-core SoC supports 802.11ac Wi-Fi Image

Quad-core SoC supports 802.11ac Wi-Fi®

A powerful SoC (System on a Chip) processes multiple tasks at once. It evolves network functions with support for high-speed 802.11ac (2x2 MIMO) specification while compatible with 802.11b/g/n dual-band routers.

Note: Some countries or regions have regulations that affect wireless signal strength and the use of Wi-Fi channels.

Versatile Zone 2/Zone B line-out Image

Versatile Zone 2/Zone B line-out

Connect your supported hi-fi system via analog RCA input to the AVR’s Zone 2/Zone B line-out. In Zone 2 mode, you can play the same or different analog/digital sources (including SPDIF and HDMI) in either or both rooms at the same time. Zone B mode is an ideal match for a supported wireless transmitter. Listen to any source through wireless headphones for disruption-free late-night TV entertainment.

Clarify voice dialog in-program instantly Image

Clarify voice dialog in-program instantly

Vocal Enhancer solves inaudible dialog in TV programs and movies. DSP technology identifies voice frequencies so you can conveniently adjust them using remote-control keys or controls on the front panel.

AccuEQ Advance with AccuReflex Image

AccuEQ Advance with AccuReflex™

AccuEQ Advance room acoustic calibration uses nine-point mic measurement to calibrate and EQ speakers and subwoofers and remove standing waves that arise when sound from the speakers resonates with sound reflecting off the walls, compromising its proper expression. During the process, background noise is ignored to ensure accurate equalization. AccuReflex optimizes 3D sound through height speakers by resolving phase-shift, resulting in a cohesive sound-field.

Mini-Site: AccuEQ Room AcousticCalibration Solutions

Connections for custom installation Image

Connections for custom installation

The TX-RZ740 features a 12 V trigger output for an external component and an IR input for remote-control range extension. It supports IP control, RS-232C, and OSD output for custom installers. An optional rack-mount kit is also available.

Roon Tested Image

Roon Tested

Roon transforms your music-browsing experience. Artist photos, reviews, lyrics, and more connect in a surfable magazine about your collection. Links between your files and music on TIDAL guide new discoveries. Roon is a multi-room platform supporting bit-perfect playback, DSD and PCM upsampling, multichannel playback, and Signal Path Display. It plays to Roon Ready, AirPlay, Sonos, and Meridian enabled devices controlled from Mac, Windows, iPhone, iPad, and Android. Certified under the Roon Tested program, the TX-RZ740 appears in Signal Path Display and Zone Selector; is identified by logos; and has links to product documentation.

Supplied Accessories

Firmware Updates: Released 12 Jan. 2022


185 W/Ch THX® Certified Select™ RZ Series DAA system

Works with Sonos, Chromecast built-in*1, AirPlay 2, DTS Play-Fi®, FlareConnect™*2, Spotify®, Amazon Music, TIDAL, Deezer, TuneIn*3

Supports 5.2.4-ch Dolby Atmos® and DTS:X® playback

11.2-ch pre-outs and processing for 7.2.4 layouts

Dolby Atmos Height Virtualizer*4

IMAX® Enhanced*4 certified for IMAX® digital remasters

Refined HDMI® grounds, SoC board, and power amps

HDMI Sub/Zone 2 output*5 for a sub-display or projector

Quad-core SoC supports 802.11ac (2x2 MIMO) Wi-Fi®*6

Zone 2 and Zone 3 speaker outputs

Zone 2 and Zone 3 DACs for D/A audio in three rooms

Zone 2/Zone B and Zone 3 line-outs share D/A audio

Stereo Assign Mode supports Height-channel playback

DSP-based Vocal Enhancer improves dialog audibility

OSD features media input/output data display function

HDMI supports 4K/60p, 4K HDR, BT.2020, HDCP 2.3*7

AccuEQ Advance 9-point calibration with AccuReflex™

Volume memory-presets for A/V inputs via front panel

IP control, RS-232C, 12 V trigger output, and IR port


Certified for IMAX Enhanced and THX Certified Select

Dynamic Audio Amplification with RZ Series Build

Ultra-wide 5 Hz–100 kHz frequency response

Custom-Built High-Current Low-Noise Power Transformer

Custom high-current smoothing capacitors

Non-phase-shift amp topology with discrete output stage

Thick resonance-controlled extruded aluminum heat-sink

Strengthened power-supply line for high-current dynamics

Refined HDMI grounds and short signal-paths reduce noise

Isolated SoC board reduces interference

High current capability for 4-ohm speaker drive

AKM (AK4458) 384 kHz/32-bit multichannel D/A conversion

VLSC™ (Vector Linear Shaping Circuitry) noise filtering (Front L/R)

PLL (Phase Locked Loop) anti-jitter technology for SPDIF audio

Direct and Pure Audio modes for source-authentic expression

Independent tone controls (bass/treble) for all channels (Zone 3 excluded)


Supports HDCP 2.3, 4K/60p, HDR (Dolby Vision™, HDR10, HLG), BT.2020, 4:4:4/24-bit, 3D Video, ARC (Audio Return Channel), DeepColor™, x.v.Color, and LipSync via HDMI

Dolby Atmos, DTS:X, Dolby® TrueHD, and DTS-HD Master Audio®

Dolby Atmos Height Virtualizer 3D processing

Dolby Surround® and DTS® Neural:X upmixing technology

IMAX Mode for IMAX Enhanced content

THX® listening modes for movies, music, and games

Sound optimization for games (Rock, Sports, Action, and RPG)

Theater-Dimensional virtual surround-sound function


Next-Generation Network Audio supports multi-room streaming and Onkyo Controller*8

Works with Sonos for the Sonos Home Sound System*9

Chromecast built-in and voice control*10 with the Google Assistant

AirPlay 2 multi-room audio and voice control*11 with Siri

DTS Play-Fi multi-room audio via Onkyo Music Control App*8

FlareConnect multi-zone audio with compatible components

Quad-core SoC supports high-speed 802.11ac (2x2 MIMO) Wi-Fi

Hi-Res Audio playback via network (DSD 11.2 MHz/5.6 MHz/ 2.8 MHz*12; FLAC, WAV [RIFF], AIFF, and ALAC to 192 kHz/24-bit*13)


7 HDMI inputs (1 front), 2 outputs (Main [ARC], Sub/Zone 2)

1 component video input (assignable)

2 composite video inputs (assignable)

2 digital audio inputs (optical and coaxial, assignable)

6 analog RCA inputs (assignable)

3.5 mm mini-stereo analog input (front)

1 phono input with built-in MM equalizer for turntable

3.5 mm setup mic input for AccuEQ Advance (front)

6.35 mm headphone jack (front)

11.2-channel pre-outs including Zone 3 pre-/line-out (Analog RCA)

Zone 2/Zone B analog RCA line-level outputs

9 screw-type speaker posts (including Zone 2)

Bi-directional Ethernet terminal for network and IP control

USB input (5 V/1 A) for audio playback (rear)

RS-232C serial input for remote control

IR (infrared) input for remote-control extenders

12 V trigger output (Main, assignable, 100 mA)

AC socket for detachable IEC power cord


AccuEQ Advance 9-point calibration with AccuReflex™

Bluetooth® wireless technology

Advanced Music Optimizer™ improves compressed audio playback

Zone 2 and Zone 3 speaker outputs with Zone 2 and Zone 3 DACs play synced or unique D/A sources simultaneously (including HDMI/SPDIF*14)

Zone 2 line-out mode connects audio systems for independent D/A playback (including HDMI/SPDIF*15) in two rooms

Zone B line-out mode supports transmitter connection for wireless headphones*16

Zone 2 and Zone 3 line-outs support simultaneous output*14

Front-to-Height speaker-switching in Stereo Assign Mode for BGM

1080p to 4K Super Resolution upscaling via HDMI

GUI with overlaid OSD via HDMI featuring media input/output display

Crossover adjustment for each channel (40 ⁄ 50 ⁄ 60 ⁄ 70 ⁄ 80 ⁄ 90 ⁄ 100 ⁄ 120 ⁄ 150 ⁄ 180 ⁄ 200 Hz)

A/V Sync Control (up to 500 ms in 5 ms steps at 48 kHz)

Various efficient standby modes and HDMI pass-through

Optional rack-mounting kit (IRK-155-3D)

IP control for home automation, SmartGrid-ready

3-Mode display dimmer (Normal/Dim/Dimmer)

40 FM/AM random presets

Redesigned simple remote control


Power Output: 185 W/Ch (6 ohms, 1 kHz, 10% THD, 1 channel driven), 175 W/Ch (6 ohms, 1 kHz, 1% THD, 1 channel driven, IEC)

Frequency Response: 5 Hz–100 kHz/+1 dB, -3 dB (Direct Mode)

Dimensions (W x H x D): 435 x 177 x 379.5 mm

Weight: 10.8 kg

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

*2 FlareConnect is a proprietary network protocol that shares select audio sources between supported components. Please visit the Onkyo website for product compatibility information.

*3 Service availability varies with region and subscriptions may be required.

*4 Enabled with a firmware update.

*5 HDMI Zone 2 Out mode supports signals from HDMI inputs 1–3 only.

*6 Some countries or regions have regulations that affect wireless signal strength and the use of Wi-Fi channels.

*7 This product is compatible with HDCP 2.3. The product or its instruction manual, carton, etc. may show "HDCP 2.2" in some cases, but can be used as an HDCP 2.3 device.

*8 Available free at the App Store and Google Play for iPhone, iPad, and Android™ devices. Please check device and OS requirements before installation.

*9 Requires a Sonos Connect (sold separately).

*10 Voice control requires a smart speaker featuring the Google Assistant.

*11 Voice control with Siri requires an Apple HomePod.

*12 Converted to PCM. DSD playback over Wi-Fi cannot be guaranteed in all network environments.

*13 Supported sampling rates may vary depending on network environment. ALAC supported to 96 kHz.

*14 When set to Zone 2, HDMI audio is available on inputs 1–3. SPDIF and HDMI support PCM signals only. Simultaneous playback of multiple audio sources is enabled. Zone 3 supports analog/NET/Bluetooth.

*15 When set to Zone B, encoded and PCM audio playback for all input terminals is enabled in Main and Zone B for simultaneous playback. When set to Zone 2, HDMI audio is available on inputs 1–3. SPDIF and HDMI support PCM signals only. Simultaneous playback of multiple audio sources is enabled.

*16 Please check compatibility before purchasing and installing third-party products.

Due to a policy of continuous product improvement, Onkyo reserves the right to change specifications and appearance without notice.

Product Information