On getting a good studio master finished product quality take with a Shure SM58, SM57,...

Since Michael Jackson used an SM7 and possibly Whitney Houston while recording in the studio and by viewing the schematic on coutant.org we can see there is a low cut incuctor of 240mH inside the mic for creating the proximity compensating low cut filter... And since the SM57, SM58 seem to have the same capsule as the SM7... And since the inductor is connected in parallel to the output of the mic... Then why not creating an inductor and placing it inside an XLR female to male barrel adaptor so that we approach with many microphone what the legendes used... This is the idea behind the Pleiades inline filter created a few years ago and published on euroelectron. Also Michael Jackson sung with many cylindrical sound absorbers around him, possibly to extinguish early reflectrions. Fairly rescent Pleiades experiments are done using the fabulous acoustics of outdoors... Anyway, after meeting Liliya and then seing her performing live on youtube with her band possibly holding an SM58 it was decided to create a passive filter for an SM58, SM58, Unidyne III etc with an inductor of close to 200mH which surprisignly had not been made yet although most other values of inductance have alreay been used on Pleiades filters.