DD Audio Redline 512d D4

- 12″ subwoofer - 2″ voice coil wound of Made in USA wire - 2x 4 ohms - power handling 400 W RMS, 1200 W Peak - weight: 6,8 kgs - mounting diameter: 281 mm - mounting depth: 150 mm - x-mech: 64 mm - x-max: +- 11 mm - fs: 25,57 Hz - qts: 0,4266 - vas: 86,42 litraa - recommended ported enclosure: 49-78 liter ( NET ) - recommended sealed enclosure: 14-28 liter ( NET ).