Product Description: - 18″ driver, 3600W program power - 4.5″ fiberglass copper voice coil - 30Hz–1kHz range, 97 dB sensitivity - Dual hyper-venting & double silicon spider - 54mm excursion with fiber loaded cone

Product Description: - 18″ woofer, 1600W power - 4″ copper voice coil - 35Hz–1kHz range - 98 dB sensitivity - Durable ferrite magnet

Product Description: - 3000W program power - 4″ split-winding copper voice coil - 35Hz–1kHz frequency range - 96 dB sensitivity, low distortion - Double spider & ventilated gap for durability