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DUMAX Measurements
last updated: 06 June, 2018
15" Drivers Ref: Imp. Re Vas Fs Qts Qes Qms Xmag Xsus Xmax Sd Date
  Adire Audio Tempest 15 man. 4 3.51 315 18.8 0.35 0.37 6.72 18.1 16.4 16.4 779 05/2001
  Cerwin-Vega Stroker 15 1 4 3.19 95.0 39.2 0.21 0.23 10.8 11.0 13.0 11.0 866 11/1995
  Image Dynamics ID154 2 4 4.10 484.4 15.6 0.30 0.32 3.78 - - 10.7 813 11/1999
  Orion Xtreme 15 D 3 2 1.98 566.6 18.6 0.36 0.39 4.77 - - 6.3 828 11/1999
  Rockford Fosgate Punch RFP-1215 4 2 2.10 283.3 17.4 0.29 0.30 5.49 - - 12.0 827 11/1999
12" Drivers Imp. Re Vas Fs Qts Qes Qms Xmag Xsus Xmax Sd Date
  Adire Audio Brahma 12 man. 4 2.58 37.23 28.1 0.45 0.50 5.06 27.3 28.5 27.3 436 11/2001
  Adire Audio Shiva 12 8 4 2.82 135.0 21.6 0.38 0.40 6.50 14.9 21.8 14.9 481 ??/????
  Alpine SWL-3048 5 4 - 145.0 23.4 0.29 0.31 4.17 - - 11.2 469 10/1998
  Audiomobile EVO-R 2312 S4 man. 4 3.16 37.8 25.2 0.29 0.33 2.76 35.7 27.4 27.4 424 06/2002
  Audiomobile EVO 2212 S24 man. 8 6.13 77.3 20.9 0.35 0.38 4.01 14.1 20.6 14.1 467 07/2001
  Audiomobile MASS 2012 6 2 1.58 79.3 23.6 0.40 0.43 6.13 19.1 22.8 19.1 - 01/2000
  Aura 12,000 RPM 7 4 - 149.0 23.3 0.33 0.36 4.14 - - 10.3 492 10/1998
  Cadence SW12-LX 9 4 - 181.0 20.2 0.31 0.33 5.09 - - 11.2 493 10/1998
  Crystal CMP-12 10 4 - 163.7 24.1 0.38 0.43 2.62 15.8 24.7 15.8 - 11/1997
  DEI High Fidelity 3128 11 4 - 147 23.0 0.35 0.40 3.12 - - 7.5 484 10/1998
  Digital Designs 9112-4 12 4 3.62 113.3 24.5 0.26 0.27 5.53 - - 13.1 - 09/1999
  Dynaudio MW190 13 4 - 238.0 29.5 0.54 0.64 3.32 5.8 - 5.8 400 10/1997
  Ground Zero GZR-12 14 4 - 52.5 33.1 0.48 0.52 8.03 18.0 11.6 11.6 388 10/1998
  Hsu Research ASW1201 15 4 - 133.1 25.5 0.26 0.28 4.57 13.9 17.8 13.9 - 11/1995
  Image Dynamics ID124 16 4 - 169.0 26.1 0.43 0.51 4.58 - - 10.0 511 10/1998
  Infinity Kappa 120.1se 17 4 - 177.0 18.3 0.32 0.34 5.67 - - 11.5 475 10/1998
  Infinity Perfect 12.1 56 4 4.01 167.4 15.7 0.27 0.29 3.22 - - 13.3 - 05/2000
  JBL 1200GTi 18 4 2.79 68.2 35.0 0.40 0.45 3.86 8.0 12.5 8.0 539 11/1995
  JBL GT1200D 19 4 - 175.0 23.4 0.32 0.34 5.19 - - 6.8 496 10/1998
  Jensen JSW124 20 4 - 218.0 22.5 0.33 0.36 3.35 - - 6.4 496 10/1998
  Kove Audio KLD 12-6 21 3 - 137 23.5 0.31 0.33 4.96 - - 9.9 512 10/1998
  Kove Audio KXP12D 22 2 1.55 102.0 31.9 0.36 0.39 3.96 10.1 16.4 10.1 - 06/1998
  Pioneer TS-W303C 23 4 - 197.0 22.5 0.30 0.33 4.48 - - 9.8 469 10/1998
  Polk DB12-4 24 4 3.77 155.8 18.5 0.29 0.31 2.71 11.0 9.3 9.3 - 10/1998
  Pyle PW124 25 4 - 303.0 21.6 0.38 0.42 4.03 - - 5.7 517 10/1998
  Soundstream SPL Mule 26 4 3.72 117.0 24.2 0.60 0.67 6.30 14.3 16.7 13.4 - 11/1998
10" Drivers - Imp. Re Vas Fs Qts Qes Qms Xmag Xsus Xmax Sd Date
  Aura Force 10 27 4 3.27 102.0 20.1 0.27 0.30 3.10 9.4 13.2 9.4 - 06/1998
  Boston Acoustics GS1000 58 4 3.69 59.5 26.8 0.46 0.56 2.77 7.5 15.8 7.5 - 07/2000
  Boston Acoustics RS10 28 4 - 73.7 28.5 0.38 0.48 1.80 10.0 10.0 10.0 - 09/1997
  Cerwin Vega 104 29 4 - 73.4 20.9 0.24 0.25 4.41 13.0 10.0 10.0 - 09/1997
  Earthquake SSB10 30 4 - 172.8 18.2 0.36 0.41 3.10 8.5 11.5 8.5 - 09/1997
  Focal Ouragan 27VX 31 4 - 84.4 28.1 0.36 0.41 3.51 11.5 16.5 11.5 - 09/1997
  Hifonics GX-10 32 3 - 42.29 30.1 0.28 0.30 4.32 12.0 9.5 9.5 - 09/1997
  MTX BTL104 33 4 - 72.2 25.0 0.40 0.43 5.74 9.5 11.5 9.5 - 09/1997
  Phoenix Gold XS104 34 4 - 85.0 23.2 0.27 0.30 2.35 11.5 8.0 8.0 - 09/1997
  Polk EX10 35 4 - 49.0 31.6 0.35 0.39 3.43 9.0 9.0 9.0 - 09/1997
  Polk DB10 36 4 4.26 16.1 24.1 0.38 0.42 3.78 11.0 10.0 10.0 195 11/1995
  Rockford Fosgate DVC RFP-1210 37 2 - 45.0 27.3 0.32 0.35 3.52 13.0 13.0 13.0 - 09/1997
  Soundstream EXACT10 38 4 - 53.8 31.2 0.25 0.27 3.98 15.0 14.0 14.0 - 09/1997
8" Drivers - Imp. Re Vas Fs Qts Qes Qms Xmag Xsus Xmax Sd Date
  a/d/s/ 308RS 39 2 2.13 23.2 35.2 0.49 0.60 2.58 - - 9.4 203 11/1999
  CD Technologies MS-80 40 4 3.37 81.7 14.2 0.25 0.29 1.67 - - 6.9 233 11/1999
  JL Audio 8W6-CR 41 3 2.91 28.0 28.0 0.36 0.39 3.91 - - 11.1 199 11/1999
6x9" Drivers - Imp. Re Vas Fs Qts Qes Qms Xmag Xsus Xmax Sd Date
  Clarion Pro Audio SRR6952 42 4 3.60 65.2 30.2 0.25 0.31 1.21 - - 4.9 - 04/1999
  Kenwood Excelon KFC-X696 43 4 3.60 25.8 42.5 0.39 0.47 2.30 - - 4.4 - 04/1999
  Planet Audio P6950X 44 4 3.67 31.2 41.5 0.61 0.87 2.04 - - 4.7 - 04/1999
6.5" Drivers - Imp. Re Vas Fs Qts Qes Qms Xmag Xsus Xmax Sd Date
  Audio Art 602SC 45 4 3.20 16.4 56.4 0.73 0.88 4.28 - - 3.8 - 04/1998
  Bostwick CX-6555 46 4 3.51 5.67 76.5 0.71 1.01 3.51 - - 4.3 - 04/1998
  Cadence Ultrashock US65 59 4 3.64 7.1 92.4 0.65 0.90 2.35 - - 2.9 - 10/2000
  Cerwin-Vega IT-62 59 4 2.84 22.7 39.9 0.36 0.45 1.84 4.9 4.0 4.0 - 10/2000
  Diamond Audio MS61 47 4 3.70 16.7 49.2 0.35 0.43 1.89 - - 5.9 - 08/1999
  Kicker Impulse 1650 59 4 4.0 15.9 60.3 0.37 0.44 2.46 7.2 3.8 3.8 - 10/2000
  MB Quart RSB 160 48 4 2.79 14.5 59 0.62 0.71 4.50 4.2 9.0 4.2 - 08/1998
  Memphis Encore AR-EN60 49 4 4.81 4.82 98.8 0.79 1.00 3.74 - - 3.4 - 04/1998
  Panasonic EAB-A65 50 4 3.58 9.07 82.1 0.87 1.19 3.23 - - 3.3 - 04/1998
6.5" Drivers - Imp. Re Vas Fs Qts Qes Qms Xmag Xsus Xmax Sd Date
  Focal Polyglass 165V 55 4 2.96 17.0 55.4 0.42 0.51 2.49 - - 5.99 - 05/2000
  MB Quart Referenz RKC 116 57 4 2.82 20.1 52.3 0.24 0.49 1.53 - - 5.26 - 06/2000
6" Drivers - Imp. Re Vas Fs Qts Qes Qms Xmag Xsus Xmax Sd Date
  Infinity Kappa Uniplane 62f 51 4 3.22 4.70 89.3 0.47 0.70 1.42 3.2 4.8 3.2 - 06/1998
5.25" Drivers - Imp. Re Vas Fs Qts Qes Qms Xmag Xsus Xmax Sd Date
   JBC QX-5.4C 52 4 3.28 6.80 49.9 0.51 0.69 1.93 3.9 5.8 3.9 83 11/1998
   JL Audio Evolution VR525-CS 53 4 3.61 7.37 60.3 0.75 0.92 3.95 4.8 6.0 4.8 85 11/1998
   Xtant XIS2.5 54 4 3.16 9.35 54.5 0.26 0.30 2.19 - - 4.5 - 11/1998
Glossary:
Size: Driver's nominal size (manufacturer's rating)
Imp: Driver's nominal impedance (ohms)
Date: Date at which measurement was performed (driver specs may change from year to year as
improvements are made by the manufacturer

Re given in ohms, Vas in litres, Xm in mm, Sd in cm^2 and Pe in Watts.

For Dual Voice Coil (DVC) drivers, the Impedance given is the impedance of the two coils wired
in parallel.
References:
1-54 - Tom Nousaine, Eric Busch (DLC), Car Stereo Review (Hatchette Filipacchi Magazines)
55 - "Test Reports", Tom Nousaine, Car Stereo Review (Hatchette Filipacchi Magazines), May 2000 issue
56 - "Test Reports", Tom Nousaine, Car Stereo Review (Hatchette Filipacchi Magazines), May 2000 issue
57 - "Test Reports", Tom Nousaine, Car Stereo Review (Hatchette Filipacchi Magazines), June 2000 issue
58 - "Test Reports", Tom Nousaine, Car Stereo Review (Hatchette Filipacchi Magazines), July 2000 issue
59 - "Special Test", Tom Nousaine, Car Stereo Review (Hatchette Filipacchi Magazines), Oct/Nov issue

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