12" Subwoofer (400-1350A) Specifications Faxback Doc. # 15864 Nominal Impedance:..........................................4/8 ohm +/- 15% Frequency Response:...........................................31 Hz-1.5 kHz Free Air Resonance (Fs) Frequency:....................................31 Hz Infinite Baffle Resonance Frequency:..................................30 Hz Piston Area (SD):.................................................0.0527 m2 RMS Thermal Power Limit (PMAX):.......................................120 W Rated Power Input - Nominal:...........................................60 W Flux Density (BL):.................................................10.24 TM DC Voice Coil Resistance (RE, ohms):......................3.6 ohms/7.2 ohms Voice Coil Inductance (LVC at 1 kHz):..........................0.35/1.43 mH SPL:...................................................87/89 +/- 2 dB/1W/1m Moving Mass (Mms):..................................................52.49 g Electrical Q Factor (QES):........................................1.23/0.60 Mechanical Q Factor (QMS):.............................................4.33 Total Q Factor:...................................................0.53/0.96 Equivalent Acoustic Volume (VAS):...................................269.6 L Mechanical Suspension Compliance (CMS, UM/N):...................684.24 UM/N Mechanical Mass of Cone Assembly and Free Air Load:.................52.49 g Mechanical Mass of Cone Assembly Only:..............................45.54 g Peak-to-Peak (Maximum) Linear Excursion:............................3.00 mm Cutout:..............................................11 1/16 Inches/28.2 cm Depth:.................................................5 1/4 Inches/13.4 cm Power Handling:................................................60 Watts RMS Magnet Weight:........................................................18 oz Speaker Weight:.....................................................60.2 oz Specifications are typical; individual units might vary. Specifications are subject to change and improvement without notice. (ALL-07/12/95)