12" Polypropylene Woofer (400-1026) Specifications Faxback Doc. # 14195 Frequency Response:..............................................40-3000 Hz Nominal Impedance:...................................................8 Ohms DC Resistance (Re):................................................5.5 Ohms Free Air Resonance (Fs):..............................................20 Hz Equivalent Air Volume (VAS):........................................15.5 Ft Effective Diameter (D):............................................10.00 In Effective Area (SD):...............................................0.0507 m Moving Mass (QMS):...............................................52.7 Grams Mechanical Q (QMS):....................................................4.23 Electrical Q (QES):...................................................0.789 Total Q (QTS):........................................................0.665 Peak Power Handling:...............................................50 Watts Peak-to-Peak Linear Excursion (Xd):................................0.525 In Gap Flux Density (Bg):............................................8.0 Gauss Diameter:.........................................................12 Inches Power Rating:...................................................100 W (Max) Sensitivity:............................................89 SPL (db) @ 1W/1M (ALL/all-04/25/95)