AKG D590 microphone

It is a gooseneck microphone that looks like a D190 with its beautiful sintered bronze cap.


However as it arrived today it was opened and surprise, a different capsule had been found. Grey blue color, smaller diameter than the one used on the D190. It's cover has 5 small holes so it looks a genuine AKG.


This microphone sounds very nice.


Signal path:


male singer's brain - male singing voice - AKG D590 - Sony TC-D5 Pro - Sennheiser HD580 - listeners's (singer's) ears, brain


It does not need a Pleiades gentle slope low cut filter as there is no bass heaviness on speech or singing.


For a high male singing register mic distance can be higher at about 3-4 inch.


There are no s problems compared to D190 which sometimes may have, indicating a better transient response.


An amazing microphone made to approach the so important flat frequency response from producer's or singer's brain to listener's brain stipulated in Hollywood. [Lowe, Morgan]


They way it seems to work is the following: As can be seen in a frequency response curve of a D590 it compensates for the proximity bass, mid boost effect. Then the singer can adjust the sound by altering the mic mouth distance.


Next day's addition:
Retested after cleaning the mic membrane with a very soft natural hair artist painting very little brush. There were deposited disintegrated foam particles. Not sure after the cleaning if it sounds better. It may even sound a bit worse. Hopefully the membrane was not damaged. Comparing with a D190 + Pleiades (130Ω,40mH) gentle slope low cut filter the latter mic has more HF content.


Reference:


Sound Picture Recording and Reproducing Characteristics - D. P. Lowe, K. F. Morgan - Journal of the Society of Motion Picture Engineers


http://lcweb2.loc.gov/master/mbrs/recording_preservation/manuals/AKG%20D-510,%20D-558,%20D-590%20Dynamic%20Microphones.pdf