Fs 32.30 Hz Qms 6.89 Vas 28.97 l Cms 0.07 mm/N Mms 307.00 g Rms 9.13 kg/s Dia 269.56 mm Sd 510.70 cm² Qes 0.59 Re 4.25 Ω Le 1.82 mH Z 4.00 Ω Bl 21.10 Tm Bl²/Re 104.59 N²/W Qts 0.54 no 0.15 % SPL 84.13 dB EBP 54.22 Nominal Diameter 12 in Overall Diameter 12.45 in / 316 mm Mounting Hole Diameter 11 in / 279 mm Bolt Hole Circle Diameter Motor Outer Diameter 6.30 in / 160 mm Mounting Depth 6.30 in / 160 mm Required Pole Vent Clearance Driver Displacement 0.136 cu ft / 3.87 l