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FOCAL 30A4 12″ SUBWOOFER

FOCAL 30A4 12" SUBWOOFER

£129.99

Sub 30 A4
Subwoofer
Diameter: 12″ (300mm)
DFS® cone (Dual Fiberglass Structure)
Mounting depth: 449/64″ (146.5mm)
Single Voice-coil
Voice-coil diameter: 2″ (50mm)
Voice-coil height: 1″ (25mm)
Magnet: 4 ¾” (120mm)
Max. power: 500W
Nom. Power: 250W RMS
Sensitivity (2.83 V/1m): 87dB
Frequency response: 32Hz-500Hz

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Description

  • • Butyl surround – Excellent reliability
  • • 2″ (50 mm) voice-coil onM – Kapton former – High power handling
  • • Spider decompression – Voice-coil ventilation
  • • 43/4″ (120 mm) magnet – High efficiency
  • • DFS® cone – Rigidity and homogeneity
  • • For compact sealed enclosure 20-30L (0.70 – 1.05 cu.ft)
  • • Bass reflex enclosure : 25-35L (0.88 – 1.23 cu.ft)
  • • Great dynamics
  • • High power handling

 

  • Nominal power 250W RMS
  • Maximum power 500W
  • Sensitivity (2,83V/1m) 87.18dB
  • Cone DFS® (Dual Fiberglass Structure)
  • Surround Butyl
  • Nom. impedance 4 Ohms
  • DC resistance 4 Ohms
  • VC diameter 50mm 2″
  • VC height 25mm 1″
  • Former Kapton
  • Layers 4
  • Wire Copper
  • Inductance 2,85mH
  • Xmax ± 8,5mm 05/16″
  • Magnet d x h 120mm x 30mm 423/32″ x 13/16″
  • Magnet weight 1250g 2.75 lbs
  • Flux density 0.8T
  • Gap height 8mm 05/16″
  • Net weight 3.7kg 8.1 lbs
  • Sealed 20l-0.70cu.ft 38Hz
  • Sealed 25l-0.88cu-ft 35Hz
  • Sealed 30l-1.05cu-ft 32Hz
  • Ported 25l-0.88cu.ft 9 cm-31/2″ 35 cm-133/4″ 38Hz
  • Ported 30l-1.05cu-ft 9 cm-31/2″ 35 cm-133/4″ 35Hz
  • Ported 35l-1.23cu-ft 9 cm-31/2″ 35 cm-133/4″ 34Hz

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