Korg Forums

[Alexey_I]

Dear All,

I just bought PA 1000,

There is a bothersome noise originating from the speaker, particularly noticeable when playing the Electronic piano preset, especially notes D and C# in the lower range.

When I put my hand on the speaker grill, the noise becomes less.

The dealer told me that, nothing can be done about this noise and all Korg PA 1000 have it.

If you have this instrument, could you please check the Electronic piano preset and let me know if it is the case?

What will be your advice?

What should I tell to dealer?

Thank you very much in advance, and I look forward to hearing from you

Regards

Alexey

[AdeG]

Let me test next week on my new PA1000.

I did not listen carefully yet, but did not hear resonances yet.

I heard from somebody that in his case the tiltable touch panel caused some resonance noise when folded down. In my case I did not notice.

I put the volume control mostly around 12 o'clock (50%), that is loud enough.

[Alexey_I]

Hi AdeG
Thank you for the response
The bussing noise is only when I play d and c#

No noise when I play other notes or in higher register

The keyboard is with the dealer

I cannot check if lifting the screen help to stop the noise

[siebenhirter]

[Alexey_I]

Dear - siebenhirter

Thank you very much for the instructions

I collected my instrument from the dealer and tried to implement your advice by disabling the Upper 2 part of the Electric Piano.


The dealer also did a repair: " Speaker grill removed and dampened"

But the noise is still there.

I recorded the noise but cannot find the attach option to send the file on the forum.

Please get back to me


Thank you very much in advance

Kind Regards

Alexey

[siebenhirter]

[BR]

@Alexey_I,
Adding to siebenhirter's well and detailed explanation, you can also check/listen with a headphone to see if you hear the noise on D and C# in the lower range.

[Alexey_I]

Dear siebenhirter
Thank you for the instructions and help.
The sound is clear when playing via the headphones.
I tried Sine Wave sound, and noise is present when playing via the speakers at a volume set up at 12-00, and the master limiter enabled “brick wall”
If it is resonance frequencies, I think they should not be present at this low volume level.
I made a video, sent it to the dealer, and asked to replace the instrument.
Thank you once again
Regards
Alexey

[AdeG]

Today I tried to replicate the problem, using the same keyboard set,
but on my PA1000 no issues with the sound.
Maybe the speaker is loose (1 screw forgotten?) or something is resonating inside?

[Alexey_I]

Hi AdeG,

Thank you for your time and assistance.

I asked the dealer to replace the keyboard and was advised that they ordered it.

They told me that once the keyboard arrives, I can check if it has the same issue in the store.

Thank you all responders, and I will keep you updated.

Regards
Alexey

[duby2]

So I tried this on my PA 1000.

siebenhirter
said to do this and I did.
So I did and what I found out is that when I play E flat, I think it's E flat 3
I do get a rattling noise but what I found out is,,
I can stop the rambling or buzzy sound bye..
Putting pressure on the words PA 1000.

So right above style play song play the word PA 1000.
If I put pressure pressing with my thumb on the metal part of the word PA 1000 the noise disappears.

I did not take apart my keyboard or look inside but I think don't say wire going from the main board over to the left hand speaker that is vibrating when I put pressure there it goes away I do not touch the left hand speaker at all I just put pressure on the words PA 1000..

Now people have tried the rest,,,, just try this and see what happens and please post it ...
this and got a buzz try what I did and tell me if you got the same results I think it's a loose wire..

I do not use the onboard speakers I always use an amplifying system that's why I might have not noticed this let us all know and keep playing music
_________________
The Gold Standard OS 2.2
Pa4X, Pa 1000, Pa3x, Pa800, Pa80, i3

[siebenhirter]

[Alexey_I]

Dear All,

Thank you for responding to my question about the noise coming from the Korg PA 1000 speakers, particularly noticeable when playing Electronic Piano and Sine Wave.

I would like to update you.

The replacement unit arrived at the dealer store.

We put two units side by side to compare.

The right-hand speaker rattles on the new unit. With a small amount of pressure, the grill stops rattling.

On the old unit left speaker sounds distorted.

The dealer replaced the keyboard.


Thank you once again for the responses

Regards

Alexey