Hifionics ZX10D2, Product Manual

5

Q       The energy losses of relative damping (ratio of stored to dissipated
          energy or ratio of reactive to resistive energy).
Fs      Free air resonance of driver in Hz.
Qms  Mechanical Q.
Vas   Volume of air equivalent to driver from the rest position.
Cms  Mechanical compliance of a loud speaker piston.
Mms  Moving mass of total loud speaker piston assembly.
Xmax The maximum linear excursion of a loud speaker.
Sd     Surface area of the cone.
Dia    The piston diameter of a loud speaker.
Qes   Electrical Q of a system.
Re     DC resistance.
Le     VC inductance.
Pe     Maximum input power.
Qts    Total Q of the system.
Sens Sensitivity. An efficiency measurement in dB’s.
Vc     Volume of a closed or sealed enclosure
Vb     Volume of a vented enclosure.
Fc     The resonant frequency of a closed or sealed system
Fb     The resonant frequency of a vented system
F3     The half-power (-3dB) frequency of a loud speaker enclosure
Qtc    The Q of a loud speaker at Fc in a closed box, considering both
         it’s electrical and mechanical resistance.
QL    The Q of a vented box, resulting from all box losses.
DV    Diameter of vent.
LV     Length of vent.
H       Height.
W      Width.
D      Depth

Glossary of Terms