ESX SX840 - 8" Subwoofer




With the reliable ESX SIGNUM SX subwoofers a fan of big basses has the perfect introduction to the world of high power subwoofers. The woofers are equipped with rigid and sturdy cast aluminum baskets and powerful magnetic drivers with temperature resistant 50 mm long stroke voice coils as they are found only in more expensive subwoofers - and all that with perfect for a price / performance ratio. The three models are available in standard baskets sizes and they are perfect for DIY builders who are looking for good bass performance in relatively small enclosures.


  • Sturdy Aluminum Basket
  • 50 mm Voice Coil with 15 mm winding height
  • Dual Magnet with 2 x 24 oz. (1,3 kg)
  • Vented Pole Core
  • Single Nomex Spider
  • Scooped Paper Cone
  • X-Max +/- 13 mm


    • 20 cm (8”) Subwoofer
    • Power Rating 300/600 Watts RMS/Max.
    • Impedance 4 Ω
    • SPL up to 139 dB
    • Installation depth 114 mm
    • Installation diameter 189 mm

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