Impedancja / Nominal impedance

•  4 Ohm (1)
•  8 Ohm (6)
•  16 Ohm (2)

Materiał magnesu / Magnet material

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

Średnica cewki / Voice coil diameter

•  1,5" (38mm) (1)
•  3" (75mm) (1)
•  4" (100mm) (1)
•  4,5" (115mm) (2)
•  5,3" (134mm) (1)