Soundmagic PL11 Headphones: Humming Issue on Computer/Laptop, Touch-sensitive Case

Question

Hello!
I have Soundmagic PL11 headphones, which I am very happy with, but I have a problem. The headphones hum when I connect them to a computer or laptop, everything is ok in the phone. hum when I touch the case even slightly.
In one earphone it is louder, in the other it is very quiet. I didn't have such a problem with any earphones. What could it be?

11111olo · Answer

The hum of the network comes after mass. Do you have your computer connected to a grounded outlet?

Yamakasi51 · Answer

I have the strip connected to a grounded socket, and my computer, monitor, speakers, etc. are connected to the strip ... So what could be causing this hum?

sosarek · Answer

Poor quality power supply, sound card, improperly mounted motherboard...

11111olo · Answer

Connect the computer directly to the wall socket. Maybe the lettering is of poor quality.

Yamakasi51 · Answer

I spent a lot of money on a decent computer less than a year ago. The power supply is OCZ ZS 650W so I think it's decent.
The sound comes from the integrated sound card in the board - also rated at a very good level.
Improperly mounted motherboard - what do you mean?
The strip was also recently purchased - it is an Acar F5.

I'm just wondering why something like this also occurs on a laptop connected to charging?
I only have this problem with these headphones.

11111olo · Answer

Are you sure your laptop is connected to the same power strip?
The letter itself is also rather low-end.

Turn on the computer and unplug the monitor and other things that are connected by removing the plug from the socket. This way you will find out if this is the reason.

A good company's power supply does not mean that it is 100% beyond suspicion, but if the laptop has the same ...

sosarek · Answer

Not using, for example, washers at the point of contact between the board and the spacer pins. Your laptop has a switched-mode power supply, which apparently does not filter the voltage properly. Check on a different outlet. Yes offtop - do you have a two- or three-wire electrical installation?

Yamakasi51 · Answer

My laptop is connected to an unearthed socket - so now you know why?
Disconnecting all sockets does nothing.
I'll check those plugs tomorrow.
I probably have a three-wire installation - I don't know about it.
I noticed that when I touch the pin from the strip of any socket, I stop humming, is it a strip?
And why is it buzzing only on these headphones, maybe it's less audible on others?

sosarek · Answer

With that pin touching, I'd be careful. Perhaps they have a wider frequency response, which is why you hear network hum.

safbot1st · Answer

This means a total lack of grounding from the mains in the power strip, laptop and the entire computer. In addition, the sound cards are not muted in the mixer. devices such as cd-rom, microphone or line in and who knows what else.

pitrala1 · Answer

A colleague up explained what's going on, you just have a poorly made electrical installation.

safbot1st · Answer

Do you stop booing? Don't worry - thanks to me you have solved the problem ps. some plague swept over Poland - most words now end in ą and ę - damn - it wasn't like that yet recently Added after 5 [minutes]: Each headphone has different parameters, e.g. sensitivity measured in dB/mW. acc. you just have me ######e headphones that's why you hear rum in them. Added after 2 [minutes]: Yup - it's not the first time and it won't be the last time that the pin in the socket is there only because ... such sockets were installed ... with pins and that was the end of the grounding

Yamakasi51 · Answer

So how finally? With #####e headphones, is there a problem with this grounding?
What would I have to do to get rid of this buzzing? Replace the electrical installation, strip, headphones or what?
These headphones are, in my opinion, the best I've ever purchased.
There are maybe some magical ways to solve this problem, because if I put my finger on the housing, maybe this finger could be replaced with something else that I could put on the housing, or anywhere or anything somewhere, put something, put something

Sorry for any mistakes, I'm typing fast on my phone

11111olo · Answer

Just because you have a sore throat doesn't mean anything. Are you sure that there is a ground connection - yellow-green wire?

safbot1st · Answer

or at least zero, put washers under the pins in the motherboard. Check it out finally: !!!

Sprytny_Lis · Answer

grounding the computer should help, I don't have such a problem even though the computer is not grounded

safbot1st · Answer

Yes, because if I blow the horn for the second time in the subject, the author's colleague probably has an unmuted mirophone in the mixer or something unmuted (of course, it's about the playback mixer).

Sprytny_Lis · Answer

I'm fine, so I don't understand what you're saying

safbot1st · Answer

So read it carefully and understand (no offense) I wrote to the author of the topic. And as for your unearthed computer - mute the microphone and put it on max - listen in headphones for noise - that's what I meant.

Sprytny_Lis · Answer

The microphone on the output is always muted and you can't hear anything.

safbot1st · Answer

yup - I meant of course - exclusion mute - that is, turning on the mic ;) Added after 1 [minutes]: Even without connecting the mica there will always be noise, and you still have a computer without grounding. And what? After turning off the mute, it hums like a bright cho ....? Added after 1 [minutes]: And now touch the housing with your hand - the effect is like the author of the post, right?

Sprytny_Lis · Answer

I have nothing like that, only the speakers hum, but they hum even with the phone connected

safbot1st · Answer

Apparently your equipment Lisa Clever catches mass in a different way (also clever)

Iskariote · Answer

I have a similar problem on the Razer Kraken Pro headphones. I have a Lenovo Y570 laptop, the headphones buzz no matter if the laptop is connected to the network or unplugged, it doesn't matter if I'm at home in the field, etc. Detachable power supply, the top of the noise changes, I turn on some game, the humming increases quite quite. I wrote to lenovo, they told me to reinstall to do oO

Can anyone help me as this has been bugging me for a week. Can I treat it as a hidden defect and, for example, recover the money for the paw that was bought 3 years ago or at least force them to fix this problem?

Soundmagic PL11 Headphones: Humming Issue on Computer/Laptop, Touch-sensitive Case

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