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MP573 Microphone preamplifier
Mp573 Volume trim to zero
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Topic: Mp573 Volume trim to zero
May 23, 2022, 04:11:33 AM
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esppse
Newbie
Posts: 11
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Mp573 Volume trim to zero
Hi,
Is there anyway to mod the MP573 to be able to turn the volume to zero?
When I drive the unit into distortion, I can't lower the volume enough to prevent my converters from clipping.
Thanks
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May 23, 2022, 08:32:06 AM
Reply #1
JPK
Administrator
Hero Member
Posts: 1117
Karma: +37/-0
Re: Mp573 Volume trim to zero
You need to replace R21 by a lower resistor or a wire.
But of course this will change the +10/-10dB law.
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JPK
January 18, 2023, 03:04:51 PM
Reply #2
sdiazmun
Newbie
Posts: 6
Karma: +0/-0
Re: Mp573 Volume trim to zero
Hi!
I'm interesting in this possible mod.
Which behaviour would have the volume trim if change the resistor for a wire? Zero attenuation in "+10" position and maximum attenuation in "-10" position?
Thanks in advance!!
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January 19, 2023, 04:14:13 PM
Reply #3
JPK
Administrator
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Posts: 1117
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Re: Mp573 Volume trim to zero
+10 will stay the same and -10 will become "full attenuation".
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JPK
January 24, 2023, 01:16:33 PM
Reply #4
sdiazmun
Newbie
Posts: 6
Karma: +0/-0
Re: Mp573 Volume trim to zero
Thanks JeanPierre
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MP573 Microphone preamplifier
Mp573 Volume trim to zero
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