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Product Description

FOCAL ACCESS Sub 30 A4 (1 Pcs)



The Access 30 A4 subwoofer develops a rated power of 250 W RMS. The essential complement to your car audio installation, it gives your kit heightened dynamics and you benefit from powerful Focal sound. It is ideal for use in sealed and bass reflex enclosures.





The 30 A4 sub is a fantastic addition to your car audio system. It achieves extreme performance levels and powerful, deep bass. Its 30 cm glass fibre DFS® cone is mounted on butyl suspension, providing consistent performance and increasing the subwoofer's life. The 30 A4 benefits from high power handling due to its powerful magnet and Kapton-mounted 50 mm coil ventilated by a spider decompression system.





  • Compact sealed enclosure: 20-30L (0.70 - 1.05 cu.ft)
  • Bass reflex enclosure: 25-35L (0.88 - 1.23 cu.ft)





  • DFS® cone (Dual Fiberglass Structure)
  • Powerful 43/4" (120 mm) magnet: 250 Watts RMS
  • Spider decompression ventilated coil
  • Great dynamics
  • High power



Dream speakers


Perfect sound. Discreet style. Premium construction. These are the standards that define Focal – and that make listening to Focal speakers an absolute pleasure. The Access line offers a marriage of performance and affordability, allowing you to experience the best in sound with a guilt-free conscience.



Feel the bass


Bass gives your music fullness and texture. If you shortchange the bass, you're not hearing your music the way it's meant to be heard. This Focal Access Series 30A4 subwoofer uses an all-weather DFS (dual fiberglass structure) cone to deliver that depth of character you may be missing from your system. The cone's butyl rubber surround helps to ensure excellent strength, durability, and musical accuracy.

A unique ventilation system keeps the voice coil cool, allowing this sub to handle up to 250 watts RMS. Install this sub in a sealed box for tight, punchy bass, or in a ported enclosure for a little more boom.

To drive this single subwoofer, we recommend a mono amplifier rated between 200 and 375 watts RMS at 4 ohms. For more information, please refer to our article on How to Match Subwoofers and Amplifiers.


  • 12" 4-ohm subwoofer
  • dual fiberglass structure cone with butyl rubber surround
  • high power 4-3/4" magnet
  • spider decompression ventilated coil
  • power range: 50-250 watts RMS (500 watts peak)
  • frequency response: 32-500 Hz
  • top-mount depth: 5-3/8"
  • sealed box volume: 0.70-1.05 cubic feet
  • ported box volume: 0.88-1.23 cubic feet
  • sensitivity: 87 dB at 2.83 volts
  • warranty: 1 year