4" Woofer Speaker (400-1022) Specifications Faxback Doc. # 9567 Impedance:...............................................................8 Frequency Response:............................................55-5,000 Hz Free air resonance:.........................................55 Hz +/- 5 Hz Qts:..................................................................0.35 Vas:..............................................................0.23f(3) Vas is the volume of air that is acoustically equivalent to the compliance of the cone SPL:.....................................................84 +/- 2dB/W (1m) Input Power (nominal):..................................................5W Input power (maximum):.................................................10W Magnet Weight:...............................................8.0 oz (228g) Speaker:....................................................24.7 oz (700g) (ALL-01/31/95)