Nominal diameter

•  15" (380mm) (3)
•  18" (460mm) (3)

Voice coil diameter

•  0,75" (20mm) (1)
•  1" (25mm) (2)
•  1,5" (38mm) (1)
•  1,8" (45mm) (1)
•  2" (51mm) (2)
•  2,5" (65mm) (4)
•  3" (75mm) (6)