-15″ subwoofer – 2 x 1 ohm voicecoil – 3″ voice coil diameter – recommended ported enclosure 80-100 liters ( NET ) – recommended sealed enclosure 40 liters ( NET ) – power handling 4 000 W RMS – effective x-max: 80 mm – qts: 0,33 – Fs: 29,5 Hz – Vas: 35,72 liters – sensitivity: 87 dB – mounting depth 285 mm – cutout diameter 358 mm.