8" Dual-Voice-Coil (400-1348A) Specifications Faxback Doc. # 15868 Subwoofer Nominal Impedance:.........................................4/8 ohms +/- 15% Frequency Response:...........................................40 Hz-2500 Hz Free Air Resonance (Fs) Frequency:....................................40 Hz Infinite Baffle Resonance Frequency:..................................39 Hz Piston Area (SD):.................................................0.0214 m2 Rated Power Input - Nominal:...........................................50 W RMS Thermal Power Limit (PMAX):.......................................100 W Flux Density (BL):..................................................5.17 TM DC Voice Coil Resistance (RE, ohms):...........................2.9/5.5 ohms Voice Coil Inductance (LVC at 1 kHz):..........................0.49/0.50 mH SPL:...................................................87/85 +/- 2 dB/1W/1m Moving Mass (Mms):..................................................25.98 g Electrical Q Factor (QES):.........................................0.72/1.4 Mechanical Q Factor (QMS):.............................................3.26 Total Q Factor:...................................................0.59/0.97 Equivalent Acoustic Volume (VAS):....................................36.8 I Mechanical Suspension Compliance (CMS, UM/N):...................561.28 UM/N Mechanical Mass of Cone Assembly and Free Air Load:.................25.98 g Mechanical Mass of Cone Assembly Only:..............................24.18 g Peak-to-Peak (Maximum) Linear Excursion:............................3.35 mm Cutout:..................................................7 Inches (17.8 cm) Depth:...............................................3 7/16 Inches (8.7 cm) Power Handling:................................................50 Watts RMS Magnet Weight:........................................................18 oz Speaker Weight:....................................................54.31 oz Specifications are typical; individual units might vary. Specifications are subject to change and improvement without notice. (ALL-07/13/95)