Sundown SA-8 V.3 D2/D4 8” Subwoofer

The SA-8 v.3 represents the pinnacle of low distortion, ported box 8 inch subwoofer technology. We built on our experience with the SA-8 series dating back to the original model which launched in 2010 to create something completely unique to the market. Every piece of the SA-8 v.3 has been custom tooled with the utmost performance and lowest distortion in mind. We started with a proprietary FEA optimized motor design engineered just for the SA-8 v.3 which features a large aluminum faraday right for low magnetic and inductive distortion levels. This motor is mated to a custom tooled and patented (US Patent D691595) frame which allows for a larger spider and superior clearances to nearly any other 8" woofer on the market today. The spider itself was custom tooled to achieve a very even compliance curve over its entire range of stroke and also features large tied down “XL” tinsel leads to handle incredible amounts of power and abuse. The SA-8 v.3 features a full 16mm of Klippel verified one-way linear excursion and mechanical capacity in excess of double the linear limits (around 2.5” peak-to-peak) to ensure that mechanical failures are nearly impossible. We also tooled an all new surround for the v.3 update with the same incredibly linear geometry as the Mega-Roll v.2 surrounds found on our larger woofers (X v.2 series and larger).

Features & Technology:

  • Xmax = 16mm one-way by 70% BL
  • RMS Power = 500-watts
  • Vented magnetic gap featuring sixteen chamfered gap vents
  • Solid Pole piece with chamfered edges for increased air powered voice coil cooling
  • High velocity under-spider frame vents
  • Black Aluminum 2” voice coil former for superior heat dissipation
  • High Temperature copper voice coil wire
  • Large Magnet ID aluminum faraday ring
  • Spring Loaded Terminals
  • Stitched-On “XL” Tinsel Leads to prevent fatigue and failure
  • High strength & patented cast aluminum frame
  • Optimized for small, ported enclosures


Sundown SA-8 V.3 D2/D4 Subwoofer specs:

  • Speaker Size = 8"
  • Nominal Impedance = 3.36/6.0 ohm
  • Rated RMS power handling = 500W
  • Sensitivity = 82.79/82.71 dB
  • Fs = 38.29/40.0 Hz
  • Qes = 0.324/0.392
  • Qms = 6.31/4.31
  • Qts  = 0.309/0.360
  • Cms= 120/125 uM/N
  • Mms = 144/126.6 g
  • BL = 18.94/22.06 NA
  • Vas = 6.88/7.17 L
  • Le = 2.08/3.32 mH
  • Cutout Diameter= 7 3/8"
  • Mounting Depth= 6 5/8"
  • Overall Diameter w/ Gasket= 8 5/8"
  • Displacement= 0.08ft3
Sundown SA-8 V.3 D2/D4 8” Subwoofer
  • Item #: sundown sa-8 v3
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Price $240.00
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