Speaker set dedicated to BMW series 3 cars, all E46 except E46 Compact and some Cabrio versions. RMS power 2x80 W. Maximum power 2x160W. Impedance 4 Ohm. Frequency response 55Hz - 22kHz2 x Mid-woofer 160 mm2 x Tweeter 25 mm silk dome2 x Two-way crossover 12dB/octaveAdap assembly areas