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LA502 Optical Compressor
Hissing LA502
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Topic: Hissing LA502
December 01, 2022, 04:30:02 PM
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igor.moreno
Newbie
Posts: 22
Karma: +0/-0
Hissing LA502
Hi !
I've got LA502 I built years ago that I don't often use because of it's hiss, which can be too much depending on the sources.
Is there any way to atenuate the hiss ?
Thanks !
Igor
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December 02, 2022, 03:52:10 PM
Reply #1
JPK
Administrator
Hero Member
Posts: 1087
Karma: +36/-0
Re: Hissing LA502
What is your PCB revision number?
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JPK
December 02, 2022, 06:44:50 PM
Reply #2
igor.moreno
Newbie
Posts: 22
Karma: +0/-0
Re: Hissing LA502
It's a REV 1.2.
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December 05, 2022, 09:23:46 AM
Reply #3
JPK
Administrator
Hero Member
Posts: 1087
Karma: +36/-0
Re: Hissing LA502
Do you know this modification?
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JPK
December 05, 2022, 12:25:05 PM
Reply #4
igor.moreno
Newbie
Posts: 22
Karma: +0/-0
Re: Hissing LA502
No, I did not know this modification.
I'll try it as soon as I have time.
Thanks !
Igor
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December 16, 2022, 01:51:44 PM
Reply #5
igor.moreno
Newbie
Posts: 22
Karma: +0/-0
Re: Hissing LA502
Hi,
One of the knobs screw broke, making the disassembly of the unit impossible...
Do you have any tip to remove the broken screw on the knob without making too much damage ?
Thanks,
Igor
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December 16, 2022, 04:54:48 PM
Reply #6
JPK
Administrator
Hero Member
Posts: 1087
Karma: +36/-0
Re: Hissing LA502
A 2.5mm drill into the hole. If the thread is damaged, it does not matter because there is another screw on these knobs.
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JPK
December 17, 2022, 05:37:10 PM
Reply #7
igor.moreno
Newbie
Posts: 22
Karma: +0/-0
Re: Hissing LA502
OK, thanks, i'll try that !
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LA502 Optical Compressor
Hissing LA502
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