15ND730 Features • 99 dB SPL 1W / 1m average sensitivity • 75 mm (3 in) Interleaved Sandwich Voice coil (ISV) • 600W program power handling • High force neodymium magnet assembly • Weather protected cone for outdoor usage • Ideal for compact reflex subwoofer and reflex multiway systems Specifications Design Parameters Mounting and Shipping Info • Nominal Diameter380 mm ( in) • Nominal Impedance8 Ω • Nominal Power Handling1400 W • Continuous Power Handling2600 W • Sensitivity399.0 dB • Frequency Range44 - 4000 Hz • Voice Coil Diameter75 mm (3.0 in)