Microphone Cupping Data Part 2: "Frequency Response Curves"

I have collected and plotted the frequency response curves for a Green Bullet, Shaker Madcat, and Audio Technica M4000S and discuss the differences. I show both the "free air" (open hand) and cupped curves.
Original Work, Copyright 2021 James D. Whiteside, II all rights reserved, For consideration only, no reproduction without prior permission.