Electret microphones sold in pairs. Curve RESPONSE flat 20 Hz 20 kHz (20 kHz -1 dB). They would use the same sensor as the Earthworks microphones (see forum on the website of Audio Addict, the franais importer who sells online). 48 V supply (6 mA). The sensitivity of 5 mV / Pa is lower than that of capacitor microphones (10 30 mV / Pa) and the self-noise, 28 dBA lev more than these same condenser microphones (5 20 dBA). In DPIT these figures, I have not noticed more audible blast with these pickups as with Oktava MK-012, once branchs on my Pramp Focusrite.
The sensitivity ad is pessimistic: the results of individual measures included on a label on the bottom of the beautiful wooden bote are suprieures 7 mV / Pa. In practice, for a same rglage gain of Pramp, the level of a recording made with the Avenson differs by less than 1 dB from that of a recording made with the Oktava.

NOTICE GLOBAL

Compared Rode NT5 or the Oktava MK012-I am struck by the truth of stamp recorded my piano. This is prcis and natural.