Frequency response of Western Electric type 394 condenser microphone (Frayne & Wolfe, 1949) Published 2022/09/27 at 1200 × 782 in Things I learned on Phono EQ curves, Pt. 2 ← Previous Next → source <cite><a href=httpsbabelhathitrustorgcgiptid=mdp39015008084934view=1upseq=48skin=2021>Elements of Sound Recordings<a><cite> p 36 by John G Frayne and Halley Wolfe 1949