Nightingales Duet song in a marshy environment

4. TETA – DIY Stereo Microphone – AOM 5024L capsules

Here a tested AOM 5024L microphone capsule. This capsule is comparable in size and sound performance to the most known and widespread Primo EM 172 (now EM 272). 
The AOL is more sensitive than the Primo capsule, however, in some uses, the lower sensitivity and the higher overload limit of the Primo, 119 dBspl vs 110 dB, allows a larger headroom, e.g. when used in a parabola.