Sound Town STLF-18X451 18" 900W RMS Cast Aluminum Frame Woofer – Carbon Fiber Cone, 4.5" Voice Coil, Replacement PA/DJ Subwoofer Driver (1800W Program, 8Ω)

The Sound Town STLF-18X451 is an 18" low-frequency driver built for high-power PA and DJ subwoofer applications. It features a rigid cast aluminum frame paired with a lightweight, damped carbon fiber cone that minimizes vibration-related distortion for a smoother low-end. Power handling is rated at 900W RMS and 1800W program into 8Ω, supported by a substantial 4.5" voice coil and a 200 oz. magnet to maintain control and accuracy at high output levels. Tuned for deep bass, the woofer covers a wide frequency span from 32 Hz up to 1 kHz, making it a direct replacement option for demanding subwoofer systems.