Cascaded Pleiades L and Pleiades (R,L) filters may interact

It may not be as easy as it was thought to be .


For example connecting in parallel an L filter to an (R,L) filter may make the overall inducatnce smaller shifting the cutoff frequency.


It seems easy when connecting and L to an L filter to a mic as then we know that the resultant cutoff frequency is the sum of the 2 cutoff frequencies.