BlueDoc
53 posts
Aug 13, 2011
7:49 AM
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A while back I bought an old Electro-Voice 623 mic, which is designed to be used as either high- or low-impedance, and can easily be changed from one setup to the other by opening up the connector where the cable attaches to the mic and moving a pin from one position to another. Shure also made a dual-impedance mic, the 520D. I think you need a soldering iron to change the setup of that one, but it doesn't look like a big deal to do.
My question is whether there's any advantage in setting up these mics in low-impedance mode. Do you get a gritty, crunchy sound when playing through a PA, or does it take the combination of the mic and the right kind of amp (or simply a pedal like the Harp Attack) to really get the grit? And if you wire it this way, and then use an impedance matching transformer "on the fly" to switch back to high impedance when using an amp, do you get the same result in high-impedance mode as you would have gotten if you'd wired the mic for high impedance in the first place?
I am thinking of experimenting with this, but I was wondering whether any of you have already done so, and what your experience has been.
Thanks,
Mark
Last Edited by on Aug 13, 2011 7:51 AM
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