Audio Technica, like several other Japanese manufacturers, specify the dynamic compliance at 100HZ. As your link above suggests, of most interest is the compliance at resonance (around 10Hz) which will be somewhat higher.
For instance Denon state the compliance of the 103 is 5x10-6cm/dyne which seems quite low. However practical resonance tests suggest the compliance is closer to 10cm/dyne(10-6)around resonance. The graph of compliance vs frequency published in Denons manual confirms this.
I'd expect the dynamic compliance of the OC9 to be more like 16-18cm/dyne(10-6) at resonance (ie around 10Hz).
As far as I can tell, when the units are crunched out, 1µm/mN equals 1cm/dyne(10-6) - ie those two terms are interchangeable. I've also seem cm/dyne(10-6) expressed as CU.
For instance Denon state the compliance of the 103 is 5x10-6cm/dyne which seems quite low. However practical resonance tests suggest the compliance is closer to 10cm/dyne(10-6)around resonance. The graph of compliance vs frequency published in Denons manual confirms this.
I'd expect the dynamic compliance of the OC9 to be more like 16-18cm/dyne(10-6) at resonance (ie around 10Hz).
As far as I can tell, when the units are crunched out, 1µm/mN equals 1cm/dyne(10-6) - ie those two terms are interchangeable. I've also seem cm/dyne(10-6) expressed as CU.