Pleiades (R,L) Filter for the Fostex M88RP 200Ω version

The M88RP American market version, output impedance was measured with an impedance meter to be 238Ω, see previous post.


While singing The Power of Love - Frankie Goes to Hollywood at the correct F minor key...


Suitable values found by adjusting the Danbridge R, L boxes:


(36Ω,7mH) for mic distance of 3-6 inch
(96Ω,7mH) for mic distance of 1 foot
8mH suitable too in the above examples
Later addition:
(29Ω,14mH) also sounded nice at about 5in


The sound becomes smooth, crystal bright without bass, mid heaviness


Signal path:


male voice singing The Power of Love - Fostex M88RP 220Ω American market version - Pleiades Danbridge (R,L) variable slope vector high pass filter - Sony TC-D5 Pro - Sennheiser HD 580 - Singer's ear brain


Note: for the Japan 600Ω Fostex M88RP version suitable values may be (130Ω,40mH), see previous euroelectron posts.