Nominal diameter              : 460mm.18in
Nominal Impedance           : 8 ohm
Program Power                 : 1200w
Continuous Power (RMS)   : 800w
Sensitivity (1w/1m)           : 96db.
Frequency range               : 36Hz. – 1.8KHz
Voice coil diameter            : Dia.99.5mm
Voice coil length                : 22mm
Magnet dimension             : Dia.220mm x 40mm

--- BassBox Pro Version 3.03, Export Thiele-Small Format
--- May 27,2009,  Wed 4:17PM
--- GPA 18100
--- Parameters marked with ** are not tested using the WT2
--------------------------------------------------------
--- mechanical ---
Fs          38.537E+00 Hz       Free air resonance
Qms         25.450E+00          Q mechanical
Vas        150.014E-03 m^3      Suspension compliance
Cms         71.257E-06 m/N      1/(suspension stiffness)
Mms        239.360E-03 kg       Moving mass
Rms          2.277E+00 kg/s     Mechanical resistance
Xmax **      0.000E+00 m        Maximum acoustic linear motion
Xmech**      0.000E+00 m        Mechanical displacement
Dia        393.700E-03 m        Piston diameter
Sd         121.736E-03 m^2      Piston area
Vd   **      0.000E+00 m^3      Displacement volume
--- electrical ---
Qes        498.574E-03          Q electrical
Re           5.269E+00 ohms     Voice coil DC resistance
Le           3.295E-03 Henries  Inductance @1 kHz
Z           28.111E+00 ohms     Impedance @1 kHz
BL          24.748E+00 Tm       Motor force - Newtons/Amp
Pe   **      0.000E+00 W        Max Electrical Power
--- electro-mechanical ---
Qts        488.994E-03          Q total
no           1.618E+00 %        1/2-space ref efficiency @ 1m/1W
1-W SPL     94.108E+00 dB       sensitivity at 1m on-axis 
2.83V SPL   95.922E+00 dB       sensitivity at 1m on-axis 
  --- motor constants ---
Krm         10.490E-03 ohms     constant resistive motor impedance
Erm        794.634E-03          exponent resistive motor impedance
Kxm        108.624E-03 Henries  constant reactive motor impedance
Exm        591.961E-03          exponent reactive motor impedance