[Rafael]

Siemens поздние:
fs 72,0 Hz free air resonance frequency
Zmax 267,5 Ohm impedance at resonant frequency
Rdc 14,7 Ohm DC-resistance
Qms 4,68 mechanical Q of the speaker
Qel 0,27 electrical Q of the speaker
Qts 0,26 total Q of the speaker
Mms 33,0 g extra mass (pretended)
Vb 60,0 dmІ test volume (pretended)
Mmd 5,94 g mass of driver's cone
Cms 0,82 mm/N compliance of driver's suspension
Vas 115,30 liter compliance volume of the speaker