Model No. RC200 Application Center Tweeter 1"* 1 Woofer 3. 5"* 2 Impedance 6 Ω Max Power 110W Sensitivity 89+/-3db Frequency Response 140HZ-33000HZ Crossover Frequency 6000HZ Magnetic Shielding Yes Model No. RS200 Application Sat Tweeter 1"* 1 Woofer 3. 5"* 1 Impedance 4 Ω Max Power 70W Sensitivity 86+/-3db Frequency Response 140HZ-33000HZ Crossover Frequency 6000HZ Magnetic Shielding Yes