[BC] Mic impedance question...

Glen Kippel glen.kippel at gmail.com
Tue Feb 7 13:10:54 CST 2012


On Tue, Feb 7, 2012 at 10:58 AM, Robert Meuser <robertm at nyc.rr.com> wrote:
>Why not examine the schematic of the preamp you do have? It is most
>likely be some opamp design. It may be possible to modify the input
>resistance of that circuit to present the proper load without incurring
>losses. In an ideal world that would be a classic 3 opamp stage balanced
>input with the signal feeding the inverting inputs. That would be very
>easy to optimize.
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I don't have a preamp.  I am looking to buy one with a USB output.  And I don't really want to modify one and void the warrantee.  I could just solder a couple of resistors into the XLR connector and get the job done real cheaply.



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