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Product Image Hertz DS 30.3 Pro Series  SUBWOOFER 300mm 4 Ohm

Hertz DS 30.3 Pro Series SUBWOOFER 300mm 4 Ohm





The DS 30.3 car audio subwoofers box offer high efficiency and exceptional power handling. Equipped with a polypropylene membrane and butyl rubber surround, they provide high excursion with minimal distortion. An efficient cooling system ensures optimal heat dissipation, increasing their reliability. The Dieci subwoofers are designed for use in compact sealed or reflex enclosures; thanks to an exclusive, carefully thought-out design, they can be used in any installation.




  • Polypropylene membrane stiffened with mineral powder.
  • High excursion butyl rubber surround.
  • Deep ribbing on the surface of the cone increase rigidity.
  • Very high efficiency, with superior power handling.
  • Designed to be used in small sealed or reflex (vented) enclosures.
  • Pure copper voice coil, wound on aluminum former, for very good thermal and mechanical capacity.
  • Venting system provides better thermal dissipation and consistent performance.




  • Size mm (in.): 300 (12)
  • Power Handling - Peak W: 1000
  • Power Handling - Continuous W: 250
  • Impedance Ω: 4
  • Frequency response Hz: 28 ÷ 300
  • Sensitivity dB SPL: 91
  • Voice coil Ø mm (in.): 38 (1.5)
  • Magnet: High density flux ferrite
  • Cone/Dome: Polypropylene with Mica injection
  • Xmax mm: 9
  • X-mech mm (in.): 16 (0.63)