DD Audio Redline 612d D4

- 12? subwoofer - 2.5? voice coil wound of Made in USA wire - 2x 4 ohms - power handling 600 W RMS, 1800 W Peak - weight: 8,2 kgs - mounting diameter: 283 mm - mounting depth: 154 mm - x-mech: 64 mm - x-max: +- 13 mm - fs: 33,65 Hz - qts: 0,61 - vas: 44,15 litraa - recommended ported enclosure: 49-78 liter ( NET ) - recommended sealed enclosure: N/A.