GPA-1899

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                               SPECIFICATIONS


Nominal diameter                                     : 460mm.18in
Nominal Impedance                                 : 8 ohm
Program Power                                         : 1200w.
Continuous Power (RMS)                         : 600w
Sensitivity (1w/1m)                                   : 95dB
Frequency range                                       : 31 – 1.8KHz
Voice coil diameter                                   : Dia.99.5mm
Voice coil length                                       : 22mm
Magnet dimension                                   : Dia.220mm x 40mm

                                    MATERIALS
Basket                                                          Steel
Cone and dust cap                                     Paper
Surround                                                    Thread coat
Voice coil wire                                           Copper
Voice coil bobbin                                       KSV.

 
--------------------------------------------------------
--- BassBox Pro Version 3.03, Export Thiele-Small Format
--- May 27,2009,  Wed 5:05PM
--- GPA 1899
--- Parameters marked with ** are not tested using the WT2
--------------------------------------------------------
--- mechanical ---
Fs          33.399E+00 Hz       Free air resonance
Qms         14.530E+00          Q mechanical
Vas        173.078E-03 m^3      Suspension compliance
Cms         82.212E-06 m/N      1/(suspension stiffness)
Mms        276.214E-03 kg       Moving mass
Rms          3.989E+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        676.840E-03          Q electrical
Re           5.614E+00 ohms     Voice coil DC resistance
Le           2.499E-03 Henries  Inductance @1 kHz
Z           20.073E+00 ohms     Impedance @1 kHz
BL          21.927E+00 Tm       Motor force - Newtons/Amp
Pe   **      0.000E+00 W        Max Electrical Power
--- electro-mechanical ---
Qts        646.715E-03          Q total
no         895.148E-03 %        1/2-space ref efficiency @ 1m/1W
1-W SPL     91.537E+00 dB       sensitivity at 1m on-axis
2.83V SPL   93.075E+00 dB       sensitivity at 1m on-axis
  --- motor constants ---
Krm          1.528E-03 ohms     constant resistive motor impedance
Erm        936.038E-03          exponent resistive motor impedance
Kxm         28.209E-03 Henries  constant reactive motor impedance
Exm        713.572E-03          exponent reactive motor impedance
--- End BassBox Pro Export ---


Model

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Last Updated ( Monday, 18 June 2018 04:21 )