Sundown Audio SDDN 15" D1 (3500-watt)

LIMITED EDITION - ONLY 500 UNITS TO EVER BE MADE.

• 3.3 inch coil. In comparison this coil is massive compared to the ZV6. ONLY AVAILABLE IN D1.
• 3500 watts RMS rating (highest in our current offerings)
• Over 50% more motor force than the ZV6
• Theoretical 2db increase in a swap from the ZV6 to these
• Recone parts will be readily available
• Motor itself weighs around 100lbs.
• 10 / 12 / 15 / 18 all available in D1 only.

• Buffer[1] Vas VCompleted: Tue Apr 25 15:08:27 2023
  Drive level 100.000% [3.532 mA]
  Sine,LoZP(LV/LA)->Vas,20 pts
  ;------------------------------------------------------------------
  Re = 1.9288 ohms
  Fs = 30.1414 Hz
  Zmax = 35.3235 ohms
  Qes = 0.2435
  Qms = 4.2164
  Qts = 0.2302
  Le = 3.9833 mH (at 1 kHz)
  Diam = 304.8000 mm ( 12.0000 in )
  Sd = 72965.8753 mm^2(113.0973 in^2)
  Vas = 38.5984 L ( 1.3631 ft^3)
  BL = 28.6263 N/A
  Mms = 546.3203 g
  Cms = 51.0346 uM/N
  Kms = 19594.5352 N/M
  Rms = 24.5387 R mechanical
  Efficiency = 0.4078 %
  Sensitivity= 88.1227 dB @1W/1m
  Sensitivity= 94.3008 dB @2.83Vrms/1m
  Krm = 10.854E-03 ohms Freq dependent resistance
  Erm = 850.964E-03 Rem=Krm*(2*pi*f)^Erm
  Kxm = 102.720E-03 Henries Freq dependent reactance
  Exm = 629.482E-03 Xem=Kxm*(2*pi*f)^Exm
  ;------------------------------------------------------------------
  Ftest = 25.433 Hz
  Ftest/Fms = 0.8438
  Test Mass used = 221.0000 g (Equal to 44.2 nickels)
  Test Mass (Ft=Fms*0.90) = 128.149 g (Add -92.851g for Ft=27.127)
  Test Mass (Ft=Fms*0.75) = 424.916 g (Add 203.916g for Ft=22.606)