· Other
· The Nucleus boots up and I can connect to it in the Roon app without issue, but I have a question about configuration/storage/attached devices
· Nucleus One
HDMI connection to my Marantz AVR creates random computer noises. Don’t know why or how and its not even input related.
Just a fellow user, curious if your AVR is also connected to a TV.
If so, does that have an antenna cable connected to it?
If so, just disconnect the antenna for a test, to see if that successfully breaks a likely ground loop and then report back.
Remedy, then, would be to get an antenna sheath current filter to plug in-line into the antenna connection.
Standing by for your answer …
Thanks for your idea. But no antenna. I stream from Roku, SuperBox or playback Blue-ray. Output to TV is HDMI OUT to HDMI into my LG.
Hi @mc_camerano,
Please provide a screenshot of the Signal Path within Roon when this issue is occurring, and/or an approximate timestamp of when it last occurred.
Does this occur whether or not you have any DSP enabled in MUSE?
The team will activate diagnostic logging in the meantime. Thanks!
I had HDMI connected last night around 6:20pm to around 7:00 pm CDT.
This is the picture of the signal path. I haven’t experimented with Muse settings and I actually can’t answer the question.
I also have an audio recording of the interference noise that occurs as soon as I connect the cable. How could I send that to you?
I have music playing through at the same time you can hear the noises. When I adjust volume the does not attenuate and when I choose a different input the noise does not go away!!!
Hi @mc_camerano,
To add one a few basic tests since I didn’t see anything reported on them :
Can you test out removing all other connections temporarily, besides Roon, and see if your issue persists?
Thanks!
Hello,
Yes I’ve tried using different HDMI cables and plugged into multiple HDMI inputs on the Marantz and the interference does not stop.
There is no interference when I utilize the Analog output from the Bluesound into the Marantz.
I will try to disconnect all of the other inputs from the Marantz and see what happens and I’ll get back to you.
Please understand I can not adjust the volume of this interference and I can not make it stop by changing inputs on the Marantz.
Hi @mc_camerano,
Let us know how it goes.
Does the issue happen outside of using Roon? If you set up the Qobuz app directly, or the Qobuz web player and stream content from there, does the same issue occur?
Thanks!
So I disconnected all other inputs to Marantz except for The Nucleus One HDMI input. The interference sounds were still there.
In the beginning of my system all I had was Bluesound and never had any issues. When I installed Roon server on my laptop and continued using the Bluesound analog output, as it still is, I’ve never had any issues. The only time these noises occur is when I plug the HDMI output from the “One” into the Marantz.
Did you hear the recording I sent of the actual sound of the interference? I sent it too Rebeka.
Would you consider sending me a second box so I can see if it happens. Unless you have any other things we can try.
Thanks
Mike
Hi @mc_camerano,
As a next step, lets test the Nucleus One HDMI output to another device to test for interference. Do you have a TV you could plug the Nucleus into and test playback?
Okay I will try tonight.
I plugged the Roon HDMI output into a HDMI input on the LG TV and it played well. I don’t hear any of the same noises.
While it was still connected in this way I turned on the Marantz sound system and I heard the noises coming through the sound system speakers. This seemed baffling to me until I unplugged the TV HDMI input coming from the Marantz output and it stopped.
I’m not sure why this is happening. Maybe the Marantz doesn’t shake hands with Roon. The Marantz model I have is not listed in the setup. Or could it be a ground loop? Although it doesn’t sound anything like a ground loop.
What do you think?
Benjamin,
I ran an extension cord over to a seperste room/circuit and all of the noise interference is gone.
Is their a way to attatch a grounding wire to the Nucleus One.
There is a gounding terminal on the Marantz AVR-7706 I can connect to
Oh by the way it sounds great!
Hello @mc_camerano ,
Thanks for letting us know of this update. Yes, it does sound like you might have a ground loop issue. I am not aware of any way to attach a ground wire to the Nucleus, I would not advise opening it up. While we can’t recommend a specific method to eliminate it, there are a few, this article can help get you started:
Noris,
I have never experienced this with any other audio products I’ve hooked into my system. Is there something inherently different about the NUCLEUS ONE design?
I still would like to receive another “ONE” to see if it happens and rule out the chance the “ONE” I have isn’t faulty.
SuperBox, BlueSound, Parasound, McIntosh, all of these manufacturers work fine. All plugged into an A/C conditioner or outlets within the same circuit. All audio being input through the Marantz preamplifier.
Why your product only?
This strongly hints to a problem within your electrical installation.
Get an electrician to check things before you have to regret you didn‘t!
Marim,
Thank you for the warning! What experience do you have with these situations.
I have never had a piece of equipment create a ground loop until I tried using the Nucleus One. All of my audio plugged within one circuit and most of it plugged in through an A/C power conditioner/surge protector.
Thanks Mike
I have a German Industriemeister Mechatronik title, internationally equivalent to a bachelors, and over 35 years of professional experience in the fields of installing, maintaining and servicing microelectronics manufacturing equipment and its infrastructure, electronic device R&D, its certification, and manufacturing, as well as regulatory electrical safety testing of mains connected electrical installations.
Hope that’s enough expertise for you to consider my recommendation.
As you stated earlier, when only changing the outlet is making a difference, this strongly indicates that something was wrong with the former.
And even if that outlet seemed fine up to that point in time, it’s not impossible for some slow deterioration of a subpar install finally showing.
Now, you made me aware that there‘s a power conditioner/surge protector in the circuit for some but not all interconnected components.
It could well be your root cause by being damaged without you noticing while it’s internal components protected the circuit from some supply spike in the past.
Overvoltage protection is often cheaply effected by sacrificing an internal component like a metal oxide varistor, which doesn‘t necessarily blow up in the process, but deteriorates to the point of causing leakage currents to protective earth.
This possibly shows only when a combination of certain devices are connected, and now the nucleus causes just that situation.
So, for a test please take that power conditioner out of the circuit and just use a simple power strip to power all galvanically coupled units of your setup and report back.
So here’s what happened!
I transferred all A/C EXCEPT THE NUCLEUS ONE to a basic power strip. I noticed a very low buzz. I tried to isolate it but could not find it. It seemed like it might be coming from the power amp or preamp but not sure yet.
Then I plugged the Nucleus One into the same circuit as everything else and the interference I experienced prior returned.
This is difficult to understand. I called my electrician! What do you think?
