Originally Posted by justanoldmuso
Re variable impedence...someone might find this interesting for dynamics and ribbons.

https://artproaudio.com/microphonepreamps/product/726455/rp1

I forgot about these. My ART mic pres had variable impedance but were a little noisy for my taste. I expect that they’re using quieter ICs by now. Although you can make one for a little less, $80 is about 1/3 the price of a CL-Z. Why they use a 10kΩ variable resistor instead of 1kΩ like the CL-Z is a mystery to me but it just means that the useable sweep is in the first 10% of the dial.

No reason for these if your dynamic has a 600Ω output like AKG and Sennheiser dynamics but use one on an SM57/58/7/545 etc. and it makes a huge difference. Tuning the low frequency response by ear is very easy.


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