30 cm (12") high-end woofer with a black cellulose diaphragm, large-format magnet arrangement and a massive aluminium diecast basket. Thanks to the multiple venting of the voice coil (pole piece hole, holes in the pole piece plate, cutouts in the aluminium diecast cone to vent the spider from behind) losses and flow noise are minimised. The combination of the voice coil carrier made of capton and the large 65 mm voice coil allow extremely high volume levels. More information: Weight & dimensions | Depth | 143 mm |  | Weight | 700 g | | Mounting hole width | 287 mm | | Mounting depth | 143 mm | | Voice coil diameter | 287 mm | | Magnet diameter | 180 mm | Features | Type | Full range speaker driver | | RMS rated power | 300 W | | Shape | Round | | Peak Music Power Output (PMPO) | 600 W | | Impedance | 8 Ω | | Sensitivity | 90 dB | | Product colour | Black | | Resonance frequency (Fs) | 25 Hz | | DC resistance (Re) | 5.4 Ω | | Effective piston area (Sd) | 510 cm² |
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