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Onkyo TX-RZ30 AV Receiver Review

Rate this AVR:

  • 1. Poor (headless panther)

    Votes: 90 45.2%
  • 2. Not terrible (postman panther)

    Votes: 84 42.2%
  • 3. Fine (happy panther)

    Votes: 23 11.6%
  • 4. Great (golfing panther)

    Votes: 2 1.0%

  • Total voters
    199
Unfortunately, there is no indication of the amps in Protect mode from the front display or onscreen info display. There is information in the manual of the protection circuit pertaining mostly to the unit shutting down when a speaker is wired incorrectly.

I’ve a lesser model of Onkyo receiver that did shut down by way of the protection circuit when this idiot did not power everything down while fiddling with wires. After powering back up, everything was fine.

Some time later, I noticed the receiver amps were in Protect mode when using the websetup. I would not have known it because there was never an audible indication that something had changed or any display of its state from the front panel or onscreen info display. I cleared Protect mode and still did not notice a change in performance. I cannot say why the amps went into protect mode as I did not check the status before the unit forced a power down when this idiot was playing with wires.

Unlike some lesser models, the RZ30 also features an automatic volume lowering feature to protect the amps when the temperature rises after playing at high volume for long periods of time. Unfortunately, the current temperature and fan speed are available only from the websetup.

IMG_6447.jpeg


As an aside, the manual mentions the color change of the onscreen volume indicator from blue to magenta when playing Dolby Vision signals but this is true just for TV led(RGB 8 bit 709 tunneling) Dolby Vision signals. Player led(YCbCr 4:2:2 8/10/12 bit) or Low Latency Dolby Vision signals will not change the color of the volume indicator from blue to magenta. This is the case with other brand AVP/AVRS as well.
 
My RZ30 is going in a cabinet, so I'm never going to see the front panel. I greatly prefer the web interface and app.
 
Some time later, I noticed the receiver amps were in Protect mode when using the websetup. I would not have known it because there was never an audible indication that something had changed or any display of its state from the front panel or onscreen info display. I cleared Protect mode and still did not notice a change in performance. I cannot say why the amps went into protect mode as I did not check the status before the unit forced a power down when this idiot was playing with wires.

Really don't want to say this, but feel compelled to, whoever (at Onkyo) decided not to include an alert of some kind (on screen would be nice) should be %-*)@!ed! If the unit would shutdown then okay but if it would continue to work but at much reduced performance level, then not providing an alert is not just right even if not a show stopper for many.
 
I agree. While there is an alert on the front display panel for a speaker wire mishap or a complete malfunction, there simply is no way to know the unit is running in Protected mode other than using the Advanced Web Setup.

Many do not connect their units to their networks and many others who do may not know about the Advanced Web Setup and encounter the basic Web Setup as did Amir because there are no instructions for or any mention of the Advanced Web Setup in the manual.

Along with Protect mode settings, the Advanced Web Setup includes settings for HDMI 2.1 and other features that are not included in the onscreen setup menu or controller app at all and those who know nothing about the Advanced Web Setup will never be able to adjust certain settings.

Those with devices featuring older HDMI and HDCP specs may encounter compatibility issues with their newer Onkyo receiver and display. Without the Advanced Web Setup, they will not be able to make adjustments to specified HDMI ports to accommodate those devices.

Then, there are those with PCs and next gen game consoles capable of 4K@120Hz. Again, the HDMI port settings for DSC, VRR, FVA, ALLM, FRL and SBTM can only be found in the Advanced Web Setup.

IMG_6448.jpeg

IMG_6449.jpeg
 
Really don't want to say this, but feel compelled to, whoever (at Onkyo) decided not to include an alert of some kind (on screen would be nice) should be %-*)@!ed! If the unit would shutdown then okay but if it would continue to work but at much reduced performance level, then not providing an alert is not just right even if not a show stopper for many.

Don't feel bad.

The onus is on Onkyo.


September 2021 - Premium Audio Corporation (PAC) purchases Onkyo

September 2024 - PAC releases Onkyo TX-RZ30

Amir's measured performance of the TX-RZ30 has eliminated my hope that PAC will abandon the protection protocol they purchased.
 
Amir's measured performance of the TX-RZ30 has eliminated my hope that PAC will abandon the protection protocol they purchased.
Even for the next gen RZ31, 51, and 61? I would imagine ART would cause all sorts of issues w/o a traditional crossover so wouldn't getting away from the "unintended 4 ohm mode" be mandatory?
 
Even for the next gen RZ31, 51, and 61? I would imagine ART would cause all sorts of issues w/o a traditional crossover so wouldn't getting away from the "unintended 4 ohm mode" be mandatory?
I hope you are correct.

My question to Premium Audio Corporation is why carry forward the protection protocol in the TX-RZ30, first AVR produced under their control ?
 
My speculation is Onkyo owner, Gentex, is waiting for confirmation of firm orders from retail partners before producing the concept products shown at CES 2026.

I can only hope these retailers tell Gentex their concepts would be more attractive to sell without the existing protection protocol.


I am very much looking forward to measurements of the Denon '3900' AVR !
 
I have no idea of the future for big box AVR's and would love to have the information to be able to assess if Onkyo, Sony, or Yamaha have enough market share to compete with the brands now controlled by Harman International of Samsung.
 
My speculation is Onkyo owner, Gentex, is waiting for confirmation of firm orders from retail partners before producing the concept products shown at CES 2026.

I can only hope these retailers tell Gentex their concepts would be more attractive to sell without the existing protection protocol.


I am very much looking forward to measurements of the Denon '3900' AVR !
I hope the new RZ series will have the ART option. Then they can compete well with Denon's 3900 through 6900.
 
I think UL wouldn’t care if they provided an alert message though.
If that message alerts them to the fact that the unit is not running at full power, then it would nullify their specifications and hance fail the test.
 
Forgive me for the questions, but patience is appreciated:

(1) Does this protect mode issue in any way affect those who use this unit strictly as a preamp/processor?

(2) While using the RZ30 as a preamp/processor, do the amps “know” when there’s no speakers hooked to them? (In other words, if I have the volume high, but I’m using external amps, are those internal amps on the RZ30 still going to heat up and cause any issues?)
 
Forgive me for the questions, but patience is appreciated:

(1) Does this protect mode issue in any way affect those who use this unit strictly as a preamp/processor?

(2) While using the RZ30 as a preamp/processor, do the amps “know” when there’s no speakers hooked to them? (In other words, if I have the volume high, but I’m using external amps, are those internal amps on the RZ30 still going to heat up and cause any issues?)

I am not certain if the internal amps are still running or not in your use case.

I do not think you will have an issue in your use case.
 
Forgive me for the questions, but patience is appreciated:

(1) Does this protect mode issue in any way affect those who use this unit strictly as a preamp/processor?

(2) While using the RZ30 as a preamp/processor, do the amps “know” when there’s no speakers hooked to them? (In other words, if I have the volume high, but I’m using external amps, are those internal amps on the RZ30 still going to heat up and cause any issues?)
You may want to ask Onkyo for an official answer. My guess is, since it seems to be based on current sensing, you should be fine if you use external amps.
 
If that message alerts them to the fact that the unit is not running at full power, then it would nullify their specifications and hance fail the test.
Interesting point but keep in mind that unlike the FTC, UL’s focus is safety, not the rated output spec., so to them protection mode by current/voltage limiting is not a bad thing.
 
Interesting point but keep in mind that unlike the FTA, UL’s focus is safety, not the rated output spec., so to them protection mode by current/voltage limiting is not a bad thing.

That may be the perspective of UL but would that not still mean a failed UL test for Onkyo ?

I am uncertain of the criteria for passing the testing at UL.
 
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