21NTLW5000 Driver 21inch Neodymium...
 Made in Italy
 96,5 dB SPL 1W / 1m average sensitivity
 Dual 115mm (4,5 in) Tetracoil Aluminum Voice coil
 Nominal Power Handling 1800W
 Continuous Power Handling 4000W
 Ultra linear suspension behavior for excellent sound clarity
 Symmetric flux density and inductance behaviour
 Low noise forced air cooling design
 Water repellent cone and epoxy coated plates
 Suitable for vented, horn loaded and bandpass applications