5.25" Two-Way Speaker (400-1367) Specifications Faxback Doc. # 6179 Resonance Frequency............................................60 Hz +/-20% Frequency Response.............................................60 Hz-20 kHz Power Rating...................................................15 Watts RMS 30 Watts Max. Music Power Impedance............................................................8 Ohms Sensitivity...................................................85 dB +/-2 dB Voice Coil............................................................25 mm Magnet Size..........................................................5.3 Oz (RLR\03\07\94)