21NLW4000 Driver 21inch Neodymium...
Made in Italy
97 dB SPL 1W / 1m sensitivity
100 mm (4 in) Interleaved Sandwich Voice coil (ISV)
3200 W program power handling
70 mm (2,76 in) peak to peak excursion
Single Demodulating Ring (SDR) for lower distortion
Composite reinforced straight ribbed cone
Optimized high grade neodymium magnet assembly
Recommended for subwoofer usage in vented enclosures