3-Inch Full Range Surface (120-1732) Specifications Faxback Doc. # 16190 Mount Car Speakers Speaker Size:.................................................3-Inch Woofer Barium Magnet Weight:...............................................2.85 Oz Power Handling:.........................................20 Watts (RMS) Each Maximum Power:................................................60 Watts Each Impedance:...........................................................4 ohms Frequency Response:...........................................230-15,000 Hz Sensitivity:...........................................................87dB (ALL-07/26/95)