Model : MB-610CTI Detail : 17cm Component 2-way System Speakers Also Fits 13cm Factory Stocks � Woofer 17cm Carbon Fiber PP Cone � Tweeter 25mm PEI Balanced Dome � Crossover Switchable 6dB/OCT 12dB/OCT � Max Power 200 Watts � Rated Power 50 Watts � Frequency Response 28Hz ~ 58,000Hz � Sensitivity 91dB � Impeadance 4 Ohms