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Onkyo TX-RZ730 AV Receiver


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Found it cheaper? Click here. SKU: ONKTXRZ730
Ex VAT: £624.17

RRP: £899.00


Sits below TX-RZ830, RZ730 is a 175W p/ch THX-Certified 9.2-channel network AV receiver supporting 5.2.4-ch Dolby Atmos and DTS:X

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RRP: £899.00


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Warranty length 2 Years
Brand Onkyo

Tech Specs

Power Out
- All: 175 W/Ch (6Ω, 1kHz, 1ch, IEC)
- Dynamic Pwr: 250/220/130W (3/4/8Ω)


- THD+N: 0.08% (20 Hz–kHz, 1/2 pwr)
- Line In Impedance: 200mV/47kO
- Phono In Impedance: 3.5mV/47kO
- RCA Subwoofer preout: 1V/470O
- RCA Zone Preout: 1V/ 2.3kO
- Zone pre/line-out: 1V/200mV/470O
- Freq: 5Hz–100kHz/ +1,-3dB (Direct)
- Bass Tone control: ±10dB, 20Hz
- Treble Tone control: ±10dB, 20kHz
- SNR: 106/80dB (Line/Phono, IHF-A)
- Speaker impedance: 4O – 16O


Video Section
- Component Y: 1.0 Vp–p/75O
- Component B/R: 0.7 Vp–p/75O
- Composite: 1.0 Vp–p/75O


Tuner Section
- FM 87.5 MHz–108 MHz
- AM 522/530–1611/1710kHz
- Preset Memory: 40 stations


- Supply AC 220–240 V~, 50/60 Hz
- Max Power consumption: 760W
- Standby Power Consumption: 0.15W
- Dimensions (WHD) 435 x 177 x 379.5mm
- Weight: 10.8kg

Product Description

Onkyo TX-RZ730 is a budget-friendly 9.2-Channel Network AV Receiver with the core power needed for 7.2.4-ch Dolby Atmos or DTS:X playback at THX Certified Select cinema-reference volume.

It’s easy to configure a reliable home-cinema layout and audio distribution setup that suits you. Premium AccuEQ Advance room-acoustic calibration with multi-point measurement ensures balanced sound.

Cinema-Reference Audio

THX Certified Select guarantees cinema-reference sound in your home. To gain certification, amplifiers must pass severe bench-tests covering every aspect of performance. THX Certified Select components suit rooms where screen-to-seat distance is about 3 meters and volume 57 cubic meters.

Onkyo RZ Series

Onkyo's RZ Series takes performance and build-quality to the next level for a reference experience. Custom high-current transformer, customised block capacitors and other upgraded parts deliver 5Hz–100kHz frequency response for wall-shaking bass, clean treble and fast dynamics. RZ Series supports a variety of home cinema and multi-room layouts to suit you while details such as 12V trigger, RS-232C, IP Control and IR input ease home integration.

Dynamic Audio Amplification

The DAA philosophy places less emphasis on lab measurements and more on how the sound actually feels in real life. High-current drive and expert tuning deliver natural transient response, the key to involving sound. A deep power reserve arrives instantly when action explodes on screen, adding adrenaline to the film experience. Accuracy and control is maintained with custom transformer and block capacitors, non-phase-shift amp circuitry, and discrete output transistors. With VLSC noise filtering (Front L/R) for improved fidelity, DAA is built for compelling sound.

Dolby Atmos and DTS:X

Hear Dolby Atmos and DTS:X soundtracks through 7.2.2 or 5.2.4 channels. Connect an outboard power amp via 11.2-multichannel pre-outs and enjoy seamless top-to-bottom, side-to-side, and front-back coverage with four in-ceiling speakers and seven floor-standers. Individual sounds aren’t tied to channels and move naturally around your audience.

Solutions for 3D sound

DTS Neural:X technology and Dolby Surround find cues in legacy soundtracks and upmix for playback through systems with height channels. Cross-compatible with Dolby and DTS formats, enjoy spatially realistic and natural sound from your existing DVD and Blu-ray Disc library or via movie streaming service.

Integrated Chromecast

Stream any music from your smartphone, laptop, or PC to the receiver with ease. Control playback with Chromecast-enabled apps from your iPhone, iPad, Android phone or tablet, Mac or Windows laptop or Chromebook. If you have a device with the Google Assistant, you can control music on the TX-RZ730 by voice.

Ready for DTS Play-Fi

DTS Play-Fi technology allows you to enjoy quality music from online services, media server, and mobile device to any number of compatible products using Onkyo Music Control App. DTS Play-Fi technology can synchronise music in every room.


FlareConnect shares audio from network and external audio input sources between compatible components. Enjoy effortless multi-room playback of LP records, CDs, network music services, and more with supported components and speaker systems. Music selection, speaker grouping, and playback management across the home are built into the Onkyo Controller app.

Three Zones

With a 5.2-ch cinema layout in Zone 1 (Main), the remaining four channels can drive speakers in Zone 2 and Zone 3. As well as analog distribution, dedicated DACs enable digital sources to be synced across rooms simultaneously, or a unique source to be played in every zone at once. Zone 2 and Zone 3 line-level outputs are ideal for sharing sources to existing hi-fi systems.

AccuEQ Advance

AccuEQ sets speaker distance, SP level and crossover. In addition, AccuEQ Advance employs multi-point measurement to remove standing waves from your listening space, which compromise audio quality and bass response. The technology also detects and compensates for background noise, such as the hum from an HVAC, to ensure accurate equalization.

Wireless Connectivity

Built-in 5 GHz/2.4 GHz Wi-Fi provides network stability for streaming, Onkyo Controller app, and multi-room audio. Bluetooth wireless technology is also on board for easy mobile or laptop connection.

Supported Formats

Get film-like 4K video bursting with bright and vibrant colors enabled by High Dynamic Range (HDR) to your supported TV display or projector. The receiver’s HDMI inputs, Main Out, and Sub/Zone 2 Out pass HDR10, HLG, and Dolby Vision formats through to compatible displays. These terminals support the BT.2020 4K video standard, 4K/60 Hz playback, and HDCP 2.2.

Streaming + Internet Radio

Find and stream music from iPad, iPhone, Mac, and PC over the Apple AirPlay wireless audio platform. Further, Amazon Music, Spotify, TIDAL, Deezer and TuneIn are all built into the system GUI making selection easy using Onkyo Controller or Onkyo Music Control App.

Key Features

- THX Certified Select cinema-reference sound quality
- Dynamic Audio Amplification (5Hz – 100kHz)
- 5.2.4-ch Dolby Atmos and DTS:X (7.2.4-ch with external amp)
- 4K/60Hz, HDR10, HLG, Dolby Vision, BT.2020 and HDCP 2.2
- HDMI: 7 In (1 Front), Main + Sub/Zone2 Out: 2
- Chromecast built-in works with the Google Assistant
- 5GHz/2.4 GHz Wi-Fi, DTS Play-Fi technology, FlareConnect
- AirPlay, Amazon Music, Spotify, TIDAL, Deezer, TuneIn

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