Caliber Dia. 476 mm (18.7 in)
 Length 465 mm (18.3 in)
 Material Aluminum
 Sensitivity
 (On-Axis with SU-100EF)		 113 dB 
 Frequency Response 160~4_comma_000 Hz
Unit Coupling13/8-18 UNEF Threaded Throat-4EA
Net Weight14 Kg (30.9 lb)