21iD Driver 21inch Neodymium 1800W...
Made in Italy
94.2 dP SBL 1W / 1M average sensitivity
135mm(5.3") split winding, four layer ISV copper voice coil
Nominal Power Handling 1800W
Continuous Power Handling 3600W
Triple silicon spider (TSS) for improved excursion control
Aluminum demodulating ring (SDR) for lower distortion
Conform to Powersoft ™ iPal® standards