EMF Audio Lowballer rev1 15" subwoofer

The Lowballer line is reinventing the concept of "entry level". Featuring a cast basket, 2.5" copper voice coil and durable Nomex spiders, this economical line has great output while maintaining better sound quality than most subs at the price point. 900 watts RMS19mm xmax6.25" mounting depth14.125" cutoutRecommended sealed box: 2.5 ft.Recommended ported box: 3.25-4 cu. ft. Re         =      4.1187 ohmsFs         =     29.8491 HzQes        =      0.4662Qms        =      4.9333Qts        =      0.4260Le         =      4.3151 mH  (at 1 kHz)Vas        =     91.3388 L   (  3.2256 ft^3)BL         =     22.2947 N/AMms        =    300.0151 gSensitivity=     88.9159 dB @1W/1mSensitivity=     91.7992 dB @2.83Vrms/1m