In case it isn't obvious, the 4104 is STILL SOTA for its job.
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Anyone interested to DIY something with similar performance?
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We want a cardioid or Fig 8 with REALLY CRAP LF response to modify so I'm not surprised that Heinz got good results from his CM-2S.? From Fig 6 of the BBC Monograph, LF -3dB cutout should be about 3kHz :o
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We could modify an omni electret to make a crap cardioid or Fig 8 but a cheapo dynamic vocal mike/capsule might be easier.
