AK... active capsules are part of the variable miniature microphone system. Together with the KM 100 output stage AK... active capsules form a complete microphone. AK 30 and KM 100, for example, make up the KM 130.
AK 30 is a diffuse-field equalized pressure transducer with a free-field treble boost (approx. 7 dB at 10 kHz). The frequency response in the diffuse sound field is flat up to 10 kHz.
Studio Quality Sound Experience From Elegant and Understated Design Denon’s Music Maniac™ AH-C50MABK In-Ear Headphones feature 9mm drivers professionally tuned to a Flat EQ to deliver an acoustically transparent music experience. The AH-C50MABK In-Ear Headphones also feature an in-line 1-button remote and microphone for easy control of select Android and Apple devices and other smartphones*, as well as clear phone conversations and voice recognition operations.