SXHF218 2x18” Hybrid Horn/Reflex Flown Dual Subwoofer 3000W BlackThe SXHF218 is an extremely powerful subwoofer capable of producing peak SPL of 148 dB at 1 m (154 dB peak with crest factor 4). It is essentially the flown version of the SXH218 and is the ideal partner for Wavefront Precision WPL arrays where maximum low frequency output is required. Its Hybrid horn reflex loading combines the acoustic efficiency and impact of bass horn technology with the low frequency extension of a reflex design, enabling it to