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Product Code: Hertz SPL Show SX 300D
Availability: In Stock
£399.99
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Hertz SX 300D 12'' Subwoofer  3200W

The Hertz SPL Show car audio subwoofers are the ideal solution for building mobile audio systems with emphasis placed on low frequency power and impact. Featuring a stacked double magnet motor assembly and 2 + 2 Ohm dual voice coil, the three models, SX 250D, SX 300D, SX 380D differ only in their cone diameter: 250 mm, 300 mm, 380 mm respectively. The SPL Show moving assembly is designed to ensure long and linear excursion. They feature a dual spider design and an aluminium voice coil wound on a four-layer former. The back vented spider support decreases the voice coil operating temperature, even during enhanced SPL usage.


- Profile ultra flat for maximum installation flexibility.

- Imposing magnetic assembly, for perfect control under high powers.

- Pressed paper cone with water repellent treatment.

- Copper voice coil, wound on an aluminium support.

- Decompression system made with air holes in the dust cover for perfect symmetry at high excursions and better heat dissipation.

- Spider Wide-wave, resin-bonded, to ensure constant parameters and reliability.

- Tin-plated high-current terminals.

- Trefoil silver plated for maximum reliability and conductivity.

- Basket and motor coupled with a special epoxy damping.

- Polar plates with high heat dissipation and high magnetic permeability, to provide a continuous and constant flow.

Core Features:

  • 12" subwoofer with dual 2-ohm voice coils
  • pressed paper cone with high-density foam surround
  • 4-layer aluminum voice coils
  • handles up to 600 watts continuous 
  • 2400 watts peak
  • designed for SPL competition
  • frequency response: 34-800 Hz
  • sensitivity: 90.5 dB
  • top-mount depth: 6-7/8"
  • sealed box volume: 1 cu. ft
  • ported box volume: 1.2 cu. ft


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