Other Pleiades gentle slope high pass filters for the Fostex M80RP

Signal path:


Room with somewhat good acoustics - male singer at various registers mostly at about 9in - Fostex M80RP s/n 100501 - Pleiades (R,L) filter, values set by Danbridge R, L decade boxes - Sony TC-D5 Pro, rec level set at 6/10 - Sennheiser HD 580 - singers's ears, brain


Various nice sounding R,L filters are as follows:


(250Ω,240mH)
(250Ω,90mH)
(550Ω,60mH or 50mH)
(750Ω,160mH or 170mH)


Various mic mouth distance used.

R values in reality are larger since on above the coil resistance of the air inductors is taken into account