1,500W – 2,000W optimal power range 3.3 inch high temp voice coil Triple stack 332oz motor 48.5lb total weight 23.5mm Xmax Double high current tinsel leads Double blend material spider Designed for use in sealed enclosures. Engineered in the USA Description The 5000 series 15 employs a finely-tuned balance of damping and extensive motor force to achieve very high efficiency, offering exceptional versatility and unmatched performance in a variety of real-world functions. Fs 32.97 HzQms 8.94Vas 32.93 litersCms 0.039 mm/NMms 591.3 gRms 13.845 kg/sDia 313.400 mmSd 771.055 sq cm Qes 0.979Re 4.546 ohmsLe 4.602 mHZ 5.455 ohmsBL 23.86 TmBL^2/Re 125.231 N^2/W Qts 0.882no 0.116 %SPL 82.802 dBEBP 33.691 XMax 23.5mm Nominal Diameter 15inOverall Diameter 15.5in / 395mmMounting Hole Diameter 13.77in / 350mmBolt Hole Circle DiameterMotor Outer Diameter 7.87in / 200mmMounting Depth 10in / 255mmRequired Pole Vent ClearanceDriver Displacement 0.196 cu ft / 5.537 l Minimum Sealed Volume N/AMinimum Vented Volume cu ft / l net*