Thursday, December 27, 2018

Making the Sennheiser MD21 sing even better


The Sennheiser MD21HN can sound even more great with a 82mH to 140mH Pleiades filter inductor in parallel to reduce bass exaggeration on soft signing male voice.


Signal path:


Male voice singing effortlessly - Sennheiser MD21HN- Pleiades filter of 82mH - Western Electric 1:2 transformer - Sony TC-D5 Pro - Sennheiser HD580


The Grampian DP6/L sounds great without needing a Pleiades filter as this mic does not produce bass heaviness on such conditions. S/N is worse although quite good but impedance is stepped from 25Ω to 100Ω instead of from 200Ω to 800Ω so a higher turn ratio is needed to get it to 800Ω for a more meaningful comprison.



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