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Old 1st August 2019
Gear Nut

Soyuz 013 Fet frequency specification charts

I just purchased one of the Soyuz 013 Fet microphones. I realize these are handmade in Russia. I tested a demo unit over the weekend and was pleased with it's sound. When I made the purchase, I received one in a new unopened box. When I got it home, I glanced at the frequencies specification chart that was included specifically to that microphone and its serial number, and I saw a few bumps in the graph. It made me concerned that it wasn't relatively flat throughout the graph. Knowing that these are handmade microphones... I'm thinking that they differ from each other. Should I be that concerned with the graph of this particular mic, that I should ask to open up a few other boxes to check their graphs for a smoother curve? Or do you think I'm splitting hairs? Basically, does anyone have any experience on buying more than one of these mics that had different graphs, and knowing if they sound that different from each other? This is a single mic not a matched pair. Thanks!
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Soyuz 013 Fet frequency specification charts-20190801_023112.jpg