DD Audio Redline 715d D4

- 15″ subwoofer - 3″ voice coil wound of Made in USA wire - 2x 4 ohms - alucast frame with DD logos - power handling 1200 W RMS, 3600 W Peak - weight: 18 kgs - mounting diameter: 353 mm - mounting depth: 232 mm - x-mech: 80 mm - x-max: +- 16 mm - fs: 31,63 Hz - qts: 0,5379 - vas: 70,17 litraa - recommended ported enclosure: 85-142 liter ( NET ) - recommended sealed enclosure: N/A.