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Old 1st October 2017
Lives for gear

Originally Posted by Peller View Post
... if you make the magnets too powerful, they compromise the low-frequency response of the microphone. I'm not sure if this is universally true of all ribbon mics, or just this design, it would be interesting to find out.
Not just true for ribbon mics, but for speaker drive units also. It's a well known characteristic, and accounted for in the electroacoustic theory. Effectively, what happens is that the Q of the fundamental resonance, which in both speakers and ribbon mics is at their low frequency end, gets reduced, i.e. seriously over-damped. This in turn affects the amplitude response, to progressively higher frequencies as the Q decreases.