Pleiades R,C highpass filter with AKG D112

Signal path:


Male singing voice at 1-4 in - AKG D112 - Pleiades R,C filter - Sony TC-D5 Pro - Sennheiser HD580


The Pleiades R,C is a gentle slope low cut or high pass made with a series capacitor shunted by a resistor. A 50K linear variable resitor was used and a Heathkit capacitor box.


First impression was that just a C may sound nice.


Second impression was that an R is needed too.


Third impression was that R,L in shunt sounds better, see Pleiades R,L filters.


Nevertheless 2 values that sounded nice with nice treble are 47nF, 42KΩ.


Other interesting combinations.
68nF,22KΩ
68nF,οοΩ (only C)
47nF,26.7KΩ (this possibly sounds better, less bass heavy than 130Ω,40mH)


This may be placed inside an XLR to XLR Neutrik modules barrel female to male adaptor. 2 capacitors and 2 resistors of the corect value may be used for better balanced operation.