Focal 10"(25cm) SINGLE COIL SUBWOOFER

25 A4

10" SINGLE COIL SUBWOOFER

The Access 25 A4 sub is the ideal boost to your car audio system's bass performance. With its 25 cm (10") diameter and its 200 W RMS rated power, it is ideally suited for fitting in a sealed or bass reflex enclosure.

HIGH PERFORMANCE for a compact subwoofer

The 25 A4 provides the bass your car audio installation needs. Its Kapton-mounted 50 mm coil with spider decompression ventilation gives this speaker high power handling. With its butyl suspension, the DFS® cone is a consistent performer. And its 120 mm magnet provides very high performance and optimises the power delivered.

ENCLOSURE MOUNTED
•Compact sealed enclosure: 15-25L (0.52 - 0.88 cu.ft)
•Bass reflex enclosure: 20-35L (0.71 - 1.23 cu.ft)

WHAT MAKES IT SPECIAL
•DFS® cone (Dual Fiberglass Structure)
•Powerful 43/4" (120 mm) magnet: 200 Watts RMS
•Spider decompression ventilated coil
•High SPL

 25A4 10" (25cm) subwoofer SPECIFICATIONS

• Nominal power: 200W RMS
• Maximum power: 400W
• Sensitivity (2,83V/1m): 85.45dB 
• Cone: DFS® (Dual Fiberglass Structure)
  
  • Surround: Butyl
  • Nom. impedance: 4 ohms
• DC resistance: 4.2 ohms
• VC diameter: 50mm
  
  • VC height: 25mm
• Former: Kapton
  
  • Layers: 4
  • Wire: Copper
  • Inductance: 2.85mH
• Xmax: ± 8.5mm
  
  • Magnet d x h: 120mm x 30mm
• Magnet weight: 1250g
• Flux density: 0.8T
  
  • Gap height: 8mm
  • Net weight: 3.5kg

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PARAMETERS

• Fs: 23.5Hz
• Vas: 49.85 liters
• Qts: 0.506
• Qes: 0.562
• Qms: 5.059
• Re: 4.19 ohms
• Sd: 330.06cm2
• Cas: 3.55e-07 m5/n
• Mas: 129.23kg/m4
• Ras: 3771.9 ohms.ac
• Cms: 3.26e-04 m/n
• Mms: 140.79g
• Rms: 4.109Kg/s
• Ces: 908.39mF
• Les: 50.49mH
• Res: 37.72 ohms
• BI: 12.45n/a
• SPL: 82.45 dB/W/m