DD Audio Redline 508d D4

- 8″ subwoofer - 2″ voice coil wound of Made in USA wire - 2x 4 ohms - power handling 400 W RMS, 1200 W Peak - weight: 6,4 kgs - mounting diameter: 183 mm - mounting depth: 127 mm - x-mech: 64 mm - x-max: +- 10 mm - fs: 37,68 Hz - qts: 0,4526 - vas: 8,813 litraa - recommended ported enclosure: 21-35 liter ( NET ) - recommended sealed enclosure: 10-17 liter ( NET ).