Monday, February 10, 2020

Tuning an AKG D190 microphone by ear


At your risk.


Summary:


All resonators where removed in a quest for an even more natural sound while an R,L gentle low cut Pleiades filter was connected. It was done in real time while singing and listening on headphones. (Protecting ears with a limiter). Reduced bandwidth resulted in reduced bass or treble heaviness. Surprisingly good behavior on sibilants. Mic was further tuned by adjusted capsule insertion depth inside mic body. The only thing left between sound and diaphragm is the sintered bronze grille.


Later addition:
After more AB comparisons with old stock D190 mics, protective dust covers ie resonators etc were replaced. The capsule cover (the one with 3 3 2 holes) must be deeply inserted or low frequency response suffers).


One should carefully insert the capsule to the mic body as there may be presure buildup to the back hole of the capsule thereby pushing the communicating back side of the membrane.


Very interesting playtime.









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