4x 18 Sound 18NLW9601 18" 3600 Watts Neodymium Subwoofer 8-Ohm Pro Audio Speaker 18Sound 18NLW9601 18" 3600W Neodymium Subwoofer 8-Ohm Fs: 39 Hz Qts: 0.28 Vas: 120 L Sd: 1130 cm² Xmax: ± 14 mm Specifications Resonant frequency Fs 39 Hz Surface of the... MSRP: Was: Now: $3,588.00 More Info Add to Cart The item has been added