reply # 4 in the link, it is about U87 microphones

[Gus]

U87 reply 4 is interesting

https://repforums.prosoundweb.com/index.php/topic,36194.msg531542.html#msg531542

 

[kingkorg]

Exceptional find! Thanks. Also includes an answer i've been looking for forever. The capsule capacitance "swing" at different spl levels.

Keeps me dreaming about inventing a capsule with no passive capacitance(40pf-100pf on average). That would be an improvement!