12" SINGLE COIL 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.
| Model | 30 A4 |
|---|---|
| Manufacturer | Focal |
| Weight | 8.100000 |
| Subwoofer Size | 12" |
| RMS Power Rating | 250W rMs |
| Max Power Rating | 500W |
| Sensitivity (dB @ 2.83V/1M) | 87.18dB |
| Cone Material | DFS® (dual Fiberglass structure) |
| Surround Type | Butyl |
| Nominal Impedance: | 4Ω |
| DC Resistance | 4 ohms |
| VC diameter | 50mm |
| VC Height | 25mm |
| Former | Kapton |
| Layers | 4 |
| Wire | Copper |
| Inductane | 2,85mH |
| Xmax - Inch(mm) | ± 8,5mm |
| Magnet | 120mm x 30mm |
| Magnet Weight | 1250g |
| Flux Density | 0.8T |
| Gap Height | 8mm |
| Fs-Free Air Resonance (Hz) | 24.7Hz |
| Vas (Liter) | 86.91 liters |
| Qts | 0.671 |
| Qes | 0.764 |
| Qms | 5.49 |
| Re (Ω)[series] | 4.01 ohms |
| Sd (cm2) | 510.71cm2 |
| Cms (mm/N) | 2.37e-04 m/n |
| Mms (g) | 175g |
| Le (mH) | 33.82mH |
| BL | 11.94n/a |
| SPL | 84.18 dB/W/m |
