Średnica / Nominal diameter

•  1,4" (36mm) (1)
•  2" (50mm) (1)
•  12" (300mm) (3)
•  15" (380mm) (7)
•  18" (460mm) (12)

Średnica cewki / Voice coil diameter

•  2,5" (65mm) (2)
•  3" (75mm) (5)
•  4" (100mm) (1)