RCF LF18X451

18-inch professional low frequency woofer for high-power subwoofer and line array applications. Rated at 1800W AES power handling and 3600W program power at 8 ohms, with 97 dB sensitivity across a 30 to 1000 Hz frequency range. Fiberglass cone assembly pairs with a 4.5-inch copper voice coil and a dual forced hyper-venting system for efficient cooling and minimal power compression. Triple-roll surround allows 14mm Xmax and 54mm peak-to-peak excursion.