Vas test completed: Thu Jan 10 11:33:16 2008
Vas drive current  2392.39 uA
SBX1620, 8 Ohm, kevlar
;------------------------------------------------------------------
Revc       =    7.2634 ohms
Fms        =   59.8180 Hz
Zmax       =   76.7035 ohms
Qes        =    0.7816
Qms        =    7.4727
Qts        =    0.7076
Le         =    1.2074 mH  (at 1 kHz)
Diam       =  133.5116 mm  (  5.2564 in  )
Sd         =13999.9986 mm^2( 21.7000 in^2)
Vas        =   11.2986 L   (  0.3990 ft^3)
BL         =    7.8056 N/A
Mms        =   17.4451 g
Cms        =  405.7918 uM/N
Kms        = 2464.3176 N/M
Rms        =    0.8774 R mechanical
Efficiency =    0.2907 % 
Sensitivity=   86.6526 dB @1W/1m
Sensitivity=   87.0721 dB @2.83Vrms/1m
;------------------------------------------------------------------
; When testing drivers with an up/down radiation (cone motion)
; enough weight should be used to get a decent resonance change
; without significantly altering the drivers suspension zero point.
; A typically good configuration is when Fs/Fsa=1.25.
; Horizontally mounted drivers are less susceptable but require
; a clay or soft caulk mass.  The following may be of help
;------------------------------------------------------------------
Fms= 59.8180 Mms   = 17.4451 g
Fsa= 47.2016 Mms+Ma= 28.0171 g
Fs/Fsa             =  1.2673
Ideal Test Mass    =  9.8129 g
Test Mass used     = 10.5720 g
Missed ideal by    =  0.7591 g (too heavy)
Nickels used       =  2.1144 
;--- Impedance Fitting Constants ---
Krm    201.768E-06 ohms     Freq dependent resistance
Erm      1.054E+00          Rem=Krm*(2*pi*f)^Erm  
Kxm     10.515E-03 Henries  Freq dependent reactance 
Exm    739.372E-03          Xem=Kxm*(2*pi*f)^Exm,  Lem=Kxm*(2*pi*f)^(Exm-1)