DD audio 818f-D1

- 18″ subwoofer - 4″ voice coil wound of Made in USA wire - 2x 1 ohms - alucast frame with dd-logos - power handling 2500 W RMS, 7500 W Peak - weight: N/A - mounting diameter: 416.9 mm - mounting depth: 317.5 mm - x-mech: 100 mm - x-max: +- 31 mm - fs: 27 Hz - qts: 0,7899 - vas: 155.3 Liter - recommended ported enclosure: 142-198 liter ( NET ) - recommended sealed enclosure: N/A