Flagship Onkyo cinema power with 11 amplified channels, Dirac Live and 8K HDMI.
The Onkyo TX-RZ70 is Onkyo’s flagship AV receiver for serious home cinema systems. It combines 11 channels of Class AB amplification, 140W per channel output, Dirac Live Room Correction Full Bandwidth, Dolby Atmos, DTS:X, Auro-3D, IMAX Enhanced, THX Certification, ESS Sabre DACs and HDMI 2.1 connectivity for 8K/60Hz and 4K/120Hz video.
Built for full 7.2.4 Dolby Atmos and DTS:X speaker layouts
The TX-RZ70 is designed for customers building larger cinema rooms, media rooms and high-performance gaming systems. It can power an 11-channel surround layout directly, including a full 7.2.4 speaker configuration with four height channels. Please check speaker layout, cabinet ventilation, HDMI requirements and room calibration setup before ordering.
11 channels, 140 watts, flagship amplifier authority.
The TX-RZ70 is designed to deliver the scale and headroom needed for larger speaker systems. With 11 amplified channels, 140W per channel output and Class AB amplifier design, it is suitable for full surround rooms that need high-impact film soundtracks and clean music playback.
- 11 powered amplifier channels
- 140W per channel into 8 ohms
- Class AB amplifier design
- Supports full 7.2.4 speaker layouts directly
Premium RZ front panel
The flip-down front panel keeps everyday controls tidy while still providing direct access when needed.
Dirac Live Full Bandwidth
Dirac Live Room Correction Full Bandwidth is included, allowing the receiver to calibrate the full 20Hz–20kHz listening range for your room.
Studio-grade processing
ESS Sabre DACs, eARC functionality and high-quality processing help the receiver deliver refined, low-distortion cinema sound.
THX Certified performance
THX Certification gives added confidence for reference-style cinema playback, high output and low-distortion home theatre performance.
Extensive rear-panel connectivity
HDMI, analogue, digital, phono, pre-out, Zone 2 and Zone 3 connections give the TX-RZ70 the flexibility needed for complex cinema rooms.
HDMI 2.1 with 8K, 4K/120 and Zone 2 HDMI switching.
The TX-RZ70 supports HDMI 2.1 video features including 8K/60Hz, 4K/120Hz, eARC, HDR10+, Dolby Vision, HDCP 2.3, VRR, ALLM and QFT. Zone 2 HDMI switching also allows a second room to receive a separate Ultra HD source.
- 7 HDMI inputs and 3 HDMI outputs with eARC
- 8K/60Hz and 4K/120Hz support
- Dolby Vision, HDR10+ and HDCP 2.3
- VRR, ALLM and QFT support for gaming sources
Object-based cinema audio, including Auro-3D.
Use the TX-RZ70 for large immersive layouts, including 7.2.4 Dolby Atmos and DTS:X rooms. It also supports Auro-3D, IMAX Enhanced and Dolby Surround / DTS Neural:X upmixing for flexible playback across films, games and music.
- Dolby Atmos and Dolby Surround
- DTS:X and DTS Neural:X
- Auro-3D and IMAX Enhanced
- Two independent subwoofer pre-outs
Streaming, multi-zone and smart-home control.
The TX-RZ70 is also a capable music and multi-room hub, with Wi-Fi, Ethernet, Apple AirPlay 2, Chromecast built-in, DTS Play-Fi, Spotify, Amazon Music HD, TIDAL, Deezer, TuneIn, Pandora, Roon Ready and Works with Sonos certification.
- Wi-Fi, Ethernet and bidirectional Bluetooth
- AirPlay 2, Chromecast built-in and DTS Play-Fi
- Works with Sonos certified
- Zone 2 / Zone 3 audio and Zone 2 HDMI switching
Flagship internal power supply design
The internal layout reflects the TX-RZ70’s focus on high-current amplification, heat management and low-noise signal handling.
Modern streaming platform support
Popular streaming and multi-room platforms are built in, making the TX-RZ70 useful for both cinema and music listening.



Designed for serious home cinema spaces
The TX-RZ70 is best matched with larger speaker layouts, dedicated cinema rooms and premium media-room installations.
Technical specifications
Key technical information for the Onkyo TX-RZ70 flagship 11.2-channel AV receiver.
| Specification | Details |
|---|---|
| Product type | 11.2-channel flagship AV receiver |
| Colour | Black |
| Amplification | 11-channel Class AB amplification; 140W per channel into 8 ohms |
| Speaker layout support | Supports 7.2.4-channel immersive speaker layouts with 11 powered channels |
| Room correction | Dirac Live Room Correction Full Bandwidth included; optional Dirac Live Bass Control available |
| Surround formats | Dolby Atmos, Dolby Surround, DTS:X, DTS Neural:X, Auro-3D and IMAX Enhanced |
| HDMI / video | 7 HDMI inputs / 3 HDMI outputs with eARC; 8K/60Hz, 4K/120Hz, HDMI 2.1, VRR, QFT, ALLM, HDCP 2.3, Dolby Vision and HDR10+ |
| Audio inputs / outputs | 4 RCA inputs, MM phono input, 2 optical, 2 coaxial, 13 preamp RCA outputs with 2 independent subwoofer outputs, Zone 2 stereo RCA and Zone 3 stereo RCA |
| Streaming and wireless | Wi-Fi, Ethernet, bidirectional Bluetooth, AirPlay 2, Chromecast built-in, DTS Play-Fi, Spotify, Amazon Music HD, TIDAL, Deezer, TuneIn, Pandora, Roon Ready and Works with Sonos |
| Certification / modes | THX Certified, IMAX Enhanced, Klipsch Optimize Mode |
| Dimensions | 435 × 201.5 × 463 mm |
| Weight | 22 kg |
| Power consumption | 1095W normal use; approximately 0.1W standby |
| SKU / EAN | SKU: TX-RZ70; EAN / UPC: 4573211159684 |
What is in the box?
- Onkyo TX-RZ70 AV receiver
- Remote control with 2 × AAA batteries
- Speaker setup microphone
- Power cord
- Documentation / quick start materials
Choose TX-RZ70 when you want Onkyo’s flagship AVR for a full 7.2.4 cinema room.
The Onkyo TX-RZ70 is best suited to customers building larger Dolby Atmos / DTS:X / Auro-3D systems, with 11 powered channels, high-current Class AB amplification, Dirac Live calibration, THX certification, modern HDMI 2.1 gaming features and extensive streaming support in one flagship receiver. Delivery timing may vary by stock status, supplier availability, courier service and destination.




