Hertz Cento CK 130 5.25 Inch 13cm 2 Way Car Door Component Speakers 70w RMS PairHertz CK 130 130 (5) mm (in.) System 210 W 4 Ohm The authentic Hertz Sound Experience for the young enthusiasts Two way systems Cento CK 130 features the new C 26 tweeter featuring a 26 mm (1 in.) Tetolon dome and 20 mm (0. 8 in.) voice coil for a detailed and natural reproduction of medium high frequencies. The R&D team worked extensively to optimize the C 26 dispersion characteristics to maximize performance on the listening point, with a natural