SPECIFICATIONS:
 
Thiele/Small parameters
Nominal Impedance (Z): 4 ohms
DC Resistance (Re): 3.2 ohms
Resonance Frequency (Fs): 40.4239 Hz
Piston Area (Sd): 0.0491 m2
Force Factor (BL): 13.7286 T.m
Mechanical Q Factor (Qms): 6.5823
Electrical Q Factor (Qes): 0.8207
Total Q Factor (Qts): 0.7297
Sensitivity 1W/M (SPL): 85.4588
Mechanical Comp (Cms): 0.0815 mm/N
Moving Mass (Mms): 190.3035 g
Linear Excursion (Xmax): 14 mm
Volume Acoustic Comp (Vas): 27.4067 Ltr/ 0.9678 cu ft
Reference Efficiency (NO.): 0.2118% RMS
Power (Pe): 500 Watts
Frequency Response: 20-200 Hz
Voice Coil Diameter: 2.5 in/63.5 mm
Displacement: 0.0885 cu ft/ 2.506 Lt
 
 Dimensions
Overall Dimensions: 12.76in/ 324mm
Cut Out Diameter: 11.125 in/ 282mm
Mounting Depth: 6.14 in/ 156 mm
Mounting Height (w/o Grille): 0.68in / 17.3mm
Mounting Height (w/ Grille): 1.437in / 36.5mm
Motor Diameter (w/ Cover): 6.41in / 163mm
 
Ported Enclosure
External Dimensions: 24.00″ W × 15.00″H × 14.25″D
Net Internal Volume:  1.77 ft3
Total Internal Volume:  2.18 ft3
Gross External Volume:  2.97 ft3
Material Thickness: 0.75″
Tuning Frequency: 39 Hz
Port Area” 27 inch2
Port Inlet: 2.00″W× 13.50″H
Port Length: 20.75″
F3 (Hz):  30
 
Sealed Enclosure
External Dimensions: 18.00″ W × 15.00″H × 10.00″D
Net Internal Volume:  1.0 ft3
Total Internal Volume: 1.09 ft3
Gross External Volume: 1.56 ft3
Material Thickness: 0.75″
F3 (Hz): 52.77
Qtc:  0.948