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Bought an MS2000R, switch for mic / line input in back panel

 
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carbonhazard



Joined: 08 Sep 2020
Posts: 1

PostPosted: Tue Sep 08, 2020 4:04 pm    Post subject: Bought an MS2000R, switch for mic / line input in back panel Reply with quote

So I scored a pretty good deal for an MS2000R in “good shape”, 300 euros. And it is in good shape, except that when I brought it home I noticed that the switch for choosing between “line” and “mic” for the inputs is broken. It’s just loose and won’t stay in either position. I haven’t yet tried to put any external audio in, but I suspect it’s just stuck on either one option.

How big of a difference is there between the two? Is it really noticeable? Also has anyone repaired this switch, is it a pain in the ass?
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OpAmp
Platinum Member


Joined: 07 Jun 2013
Posts: 1173
Location: Brussels, BE

PostPosted: Tue Sep 08, 2020 9:00 pm    Post subject: Reply with quote

Hi,

The switch is a 2 times a mux (select one of 2 signals). It switches resistors for an input filter and some feedback filter for an opamp. In the end it sets the gain that will be applied to the signal.

Bye.
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