AKG D190 - Pleiades (130Ω,40mH) - Uher 4200 report

First time connecting a mic to Uher 4200 serial number 13034 with a Pleiades gentle low cut filter for reducing bass, mid bass, mid heaviness.


This is live listening while singing in a room. A Pleiades linoleum Auratone 5C type speaker connected to Uher 4200 speaker output,


Signal path:


Male singing - AKG D190 at 3-4 in - Pleiades (130Ω,40mH) mic filter - Uher 4200 channel 1 - Pleiades linoleum Auratine 5C type speaker


A Shure SM63 had been connected too. It sounded too bright.


Speaker output has at max in Uher 4200 and recording level adjusted for avoiding positive acoustic feedback whistle.


Without the Pleiades filter, the sound is very bass, mid bass heavy, due to proximity effect, equal loudness curves, voice effort curves. It sounds like a cheap joke sound. How can Uher 4200 record as such?


With Pleiades filter the sound is exceptionally clear and natural. Approaching the ideal of flat frequency response not from mic to loudspeaker but from record producer's brain to listener's brain. [Lowe, Morgan]


Reference:


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