Start

Onkyo TX-RZ30

RZ Series

The Onkyo TX-RZ30 is a 9-channel AV receiver with Dolby Atmos and DTS:X, rated 100 W per channel. It drives 6–8 Ω speakers as is, and 4–5 Ω speakers once set to 4 Ω.

Amp channels
9
Built-in amplifiers
Power
100 W
Per channel, 8 Ω, 2 driven
Lowest speaker load
4 Ω
Using its impedance setting
Sub outputs
2
For up to 2 subwoofers

$1,000 each (MSRP, September 2025)

Check it with your speakersSee it in your room
3D model of the Onkyo TX-RZ30

Drag to turn it. Built from the published dimensions, not a photo.

We earn a commission when you buy through these links. It never affects which products we show or recommend. Disclosure

Used on eBay

Which speakers work with it?

What decides it is the speaker's impedance, in ohms (Ω) on its spec sheet. The TX-RZ30 is rated for speakers down to 4 Ω, using its impedance setting.

  • Works

    Speakers rated 6–8 Ω

    81 in our catalogue

  • Needs a setting change

    Speakers rated 4–5 Ω

    Set the receiver to 4 Ω in its speaker setup.

    17 in our catalogue

In its price range

All 98 speakers we checked

Works81

Needs a setting change17

Set the receiver to 4 Ω in its speaker setup.

Which speaker layouts can it run?

The TX-RZ30 powers 9 speakers and processes 9. In a layout like 7.1.4, the 7 is floor speakers, the 1 a subwoofer and the 4 height speakers.

  • Stereo

    Runs on its own

  • 5.1

    Runs on its own

  • 5.1.2

    Runs on its own

  • 5.1.4

    Not supported

  • 7.1

    Runs on its own

  • 7.1.2

    Runs on its own

  • 7.1.4

    Not supported

Which subwoofers connect to it?

It has 2 subwoofer outputs, and any powered subwoofer with a line-level input connects to them.

  • Connects

    Powered subwoofers with a line-level input

    17 in our catalogue

In its price range

All 17 subwoofers we checked

Connects17

Plan your room around the TX-RZ30.

Draw your room in 3D, add your speakers, and see every connection checked and how loud the TX-RZ30 plays at your seat. Designing is free.

Build it in your room

TX-RZ30 specifications

Amplifier channels
9
Processing channels
9
Height formats
Dolby Atmos, DTS:X
Power
100 W at 8 Ω
Room correction
Dirac Live
Size
17×7×15 in
Lowest speaker impedance
4 Ω
Impedance setting
6 Ω, 4 Ω
Subwoofer outputs
2
Speaker layouts
7.1.2
Weight
11.5 kg (25.4 lb)
MSRP
$1,000 each (MSRP, September 2025)

Every value comes from the sources under References, last retrieved September 15, 2026. To check it against the rest of your system, use the compatibility checker.

Questions about the TX-RZ30

How many speakers can the TX-RZ30 power?
The Onkyo TX-RZ30 has 9 amplified channels. Its manual lists these layouts: 7.1.2.
Can the TX-RZ30 drive 4 ohm speakers?
Yes. It is rated for speakers down to 4 Ω; set its speaker impedance setting to 4 Ω first.
How many watts per channel is the TX-RZ30?
100 W per channel into 8 Ω, measured from 20 Hz to 20 kHz with 2 channels driven at 0.08% THD.
Does the TX-RZ30 support Dolby Atmos?
Yes. It decodes Dolby Atmos and DTS:X.
How many subwoofer outputs does the TX-RZ30 have?
2 subwoofer outputs. Room correction is Dirac Live.

Similar products

References

  1. Onkyo TX-RZ30: Owner's manual, assets.onkyo-av.com, retrieved September 15, 2026
  2. Onkyo TX-RZ30: Retailer listing, web.archive.org, retrieved September 15, 2026

Brand names are trademarks of their owners. Not affiliated with or endorsed by any manufacturer. 3D models are our approximations. Prices are manufacturer list prices (MSRP) as of the month shown. How we earn from buy links: affiliate disclosure.