Focal SUB 30 A4 12" Single Coil 4-Ohm Subwoofer

Focal SUB 30 A4 12" Single Coil 4-Ohm Subwoofer

The 12" 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. Ideal for use in sealed and bass reflex enclosures, it achieves extreme performance levels and powerful, deep bass.

Key Points

DFS® cone (Dual Fiberglass Structure)
Powerful 4 3/4" (120 mm) magnet: 200 Watts RMS
Spider decompression ventilated coil
Great dynamics
High power

Features

Specifications

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: 2"
VC height: 1"
Former: Kapton
Layers: 4
Wire: Copper
Inductance: 2,85mH
Xmax ±: 05/16"
Magnet d x h: 4 23/32" x 13/16"
Magnet weight: 2.75 lbs
Flux density: 0.8T
Gap height: 05/16"
Net weight: 8.1 lbs

Parameters

Fs 24.7Hz
Vas: 86.91 liters
Qts: 0.671
Qes: 0.764
Qms: 5.49
Re: 4.01 Ohms
Sd: 510.71cm2
Cas: 6.19E-07 m5/N
Mas: 67.1kg/m4
Ras: 1896.71 Ohms.ac
Cms: 2.37E-04 m/N
Mms: 175g
Rms: 4.947Kg/s
Ces: 1227.64mF
Les: 33.82mH
Res: 28.82 Ohms
BI: 11.94N/A
SPL: 84.18 dB/W/m