High-power RZ-series home cinema with 11.2-channel processing, Dirac Live and 8K HDMI.
The Onkyo TX-RZ50 is a premium 9.2-channel AV receiver built for ambitious home cinema systems, gaming setups and multi-room audio. It combines 120W per channel amplification, 11.2-channel processing, Dirac Live Room Correction, Dolby Atmos, DTS:X, IMAX Enhanced, THX Certified Select performance and HDMI 2.1 connectivity with 8K/60Hz and 4K/120Hz support.
Designed for serious 3D surround and future-ready HDMI systems
The TX-RZ50 can power 5.2.4, 7.2.2 or 9.2 speaker layouts directly, and its 11.2-channel processing with pre-outs can support a 7.2.4 layout when an additional stereo power amplifier is used. Please check speaker layout, cabinet ventilation, HDMI requirements and room calibration setup before ordering.
RZ-series Dynamic Audio Amplification.
As part of Onkyo’s premium RZ Series, the TX-RZ50 uses Dynamic Audio Amplification, high-current power supply design and carefully arranged signal paths to deliver powerful, dynamic and detailed home cinema sound.
- 9 powered amplifier channels
- 120W per channel into 8 ohms
- High-current power supply and customised capacitors
- Designed for impactful film soundtracks and refined music playback
Clean black RZ chassis
A premium AV receiver design with a brushed front panel, clear display and dedicated control layout.
Dirac Live included
Dirac Live Room Correction is built in for full-bandwidth room calibration across the 20Hz–20kHz range.
THX Certified Select
THX certification confirms the receiver has passed demanding tests for high-volume, low-distortion cinema playback.
Klipsch Optimized Mode
When paired with compatible Klipsch Reference and Reference Premiere speakers, the receiver can apply dedicated crossover values.
Extensive AV connectivity
HDMI, analogue, digital, phono, pre-out, Zone 2 and Zone 3 connections give the TX-RZ50 the flexibility needed for complex cinema rooms.
HDMI 2.1 with 8K, 4K/120 and eARC.
The TX-RZ50 supports HDMI 2.1 video features including 8K/60Hz, 4K/120Hz, eARC, Dynamic HDR, HDR10+, Dolby Vision, HDCP 2.3 and gaming-focused features such as VRR, ALLM and QFT. It is ready for modern TVs, projectors, media players and games consoles.
- 7 HDMI inputs including front HDMI, 2 HDMI outputs with eARC
- 8K/60Hz and 4K/120Hz video support
- Dolby Vision, HDR10+, Dynamic HDR and HDCP 2.3
- VRR, ALLM and QFT support for gaming sources
11.2-channel processing for 7.2.4 expansion.
With 9 powered channels and 11.2-channel processing, the TX-RZ50 can be configured for 5.2.4, 7.2.2 or 9.2 layouts directly. Add a stereo power amplifier and it can expand to a full 7.2.4 Dolby Atmos / DTS:X system.
- Dolby Atmos and Dolby Surround
- DTS:X and DTS Neural:X
- IMAX Enhanced support
- Two subwoofer outputs and 9-channel pre-outs
Streaming, multi-zone and smart-home control.
The TX-RZ50 is also a capable streaming hub, with Wi-Fi, Ethernet, AirPlay 2, Chromecast built-in, DTS Play-Fi, Spotify Connect, Amazon Music HD, TIDAL, Deezer, TuneIn and Works with Sonos certification.
- Wi-Fi and Ethernet network connectivity
- Apple AirPlay 2, Chromecast built-in and DTS Play-Fi
- Works with Sonos certified
- Zone 2 / Zone 3 and discrete Zone 2 HDMI switching
Connectivity designed for modern entertainment systems
Multiple HDMI sources, two displays, multi-room audio, music streaming and classic analogue inputs can all be integrated through one AV receiver.



Technical specifications
Key technical information for the Onkyo TX-RZ50 9.2-channel THX Certified AV receiver.
| Specification | Details |
|---|---|
| Product type | 9.2-channel THX Certified AV receiver |
| Colour | Black |
| Amplification | 9-channel AV amplification; 120W per channel into 8 ohms |
| Processing | 11.2-channel processing and pre-outs for 7.2.4 layouts |
| Room correction | Dirac Live Room Correction 20Hz–20kHz plus AccuEQ; speaker setup microphone included |
| Surround formats | Dolby Atmos, Dolby Surround, DTS:X, DTS Neural:X and IMAX Enhanced |
| HDMI / video | 7 HDMI inputs / 2 HDMI outputs with eARC; 8K/60Hz, 4K/120Hz, HDMI 2.1, VRR, QFT, ALLM, HDCP 2.3, Dolby Vision and HDR10+ |
| Audio inputs / outputs | 6 RCA inputs, MM phono input, 1 optical, 1 coaxial, 9-channel pre-outs, 2 subwoofer outputs, Zone 2 stereo RCA, Zone 3 stereo RCA and 6.3mm headphone output |
| Streaming and wireless | Wi-Fi, Ethernet, Bluetooth transmitter / receiver, AirPlay 2, Chromecast built-in, DTS Play-Fi, Spotify Connect, Amazon Music HD, TIDAL, Deezer, TuneIn, Roon Tested and Works with Sonos |
| Certification / modes | THX Certified Select, IMAX Enhanced, Klipsch Optimized Mode |
| Dimensions | 435 × 201.5 × 398 mm |
| Weight | 14 kg |
| Power consumption | 850W normal use; 0.15W standby |
| SKU / EAN | Suggested SKU: TXRZ50BMMP; Richer Sounds SKU: ONKY-TXRZ50-BK; EAN / UPC: 4573211159660 |
What is in the box?
- Onkyo TX-RZ50 AV receiver
- Power cord
- Indoor FM antenna
- AM loop antenna
- Speaker setup microphone
- Quick Start Guide
- Remote control
- Two AAA / R03 batteries
Choose TX-RZ50 when you want more power and processing headroom than TX-RZ30.
The Onkyo TX-RZ50 is a strong match for home cinema customers who want RZ-series amplification, 11.2-channel processing, Dirac Live calibration, THX certification, modern HDMI 2.1 gaming features and extensive streaming support in one AV receiver. Delivery timing may vary by stock status, supplier availability, courier service and destination.




