Średnica / Nominal diameter

•  12" (300mm) (1)
•  15" (380mm) (2)
•  18" (460mm) (3)

Materiał magnesu / Magnet material

•  ferryt / ferrite (2)
•  neodym / neodymium (1)

Średnica cewki / Voice coil diameter

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