Specifications: Nominal Diameter .......................................... Nominal Impedance ...................................... Maximum Power Handing ............................. RMS Power Handing ...................................... Sensitivity (1w/1m) ........................................ Frequency Response ..................................... Recommended Lo Pass Crossover ............... 10’’ (254mm) 2 ohms svc 800 watts 400 watts 91 db 40Hz-5KHz 180hz PRO-W10.