SPECIFICATIONS:
 
Thiele/Small parameters
Nominal Impedance (Z): 2 ohms
DC Resistance (Re): 1.6 ohms
Resonance Frequency (Fs): 51.6241 Hz
Piston Area (Sd): 0.0194 m2
Force Factor (BL): 9.7018 T.m
Mechanical Q Factor (Qms): 5.444
Electrical Q Factor (Qes): 0.525
Total Q Factor (Qts): 0.4788
Sensitivity 1W/M (SPL): 83.3836
Mechanical Comp (Cms): 0.0998 mm/N
Moving Mass (Mms): 95.2145 g
Linear Excursion (Xmax): 8.5 mm
Volume Acoustic Comp (Vas): 5.2241 Ltr/ 0.1845 Cu ft
Reference Efficiency (NO.): 0.1314% RMS
Power (Pe): 350 Watts
Frequency Response: 30-500 Hz
Voice Coil Diameter: 2.0 in/50.8 mm
Displacement: 0.05 cu ft/ 1.44Ltr
 
Dimensions
Overall Dimensions: 8.425in/ 214 mm
Cut Out Diameter: 7.25 in/ 184 mm
Mounting Depth: 4.291in/ 109 mm
Mounting Height (w/o Grille):  0.55in / 14mm
Mounting Height (w/ Grille):  1.18in / 30mm
Motor Diameter (w/ Cover):  5.55in / 141mm
 
Ported Enclosure
External Dimensions:  23.00″ W × 11.50″H × 12.00″D
Net Internal Volume:  0.89 ft3
Total Internal Volume:  1.22 ft3
Gross External Volume:  1.84 ft3
Material Thickness: 0.75″
Tuning Frequency: 40 Hz
Port Area” 17.50 inch2
Port Inlet:  1.75″W× 10.00″H
Port Length:  28.00″
F3 (Hz):  34
 
Sealed Enclosure
External Dimensions: 14.50″ W × 10.00″H × 10.00″D
Net Internal Volume:  0.49 ft3
Total Internal Volume: 0.54 ft3
Gross External Volume: 0.84 ft3
Material Thickness: 0.75″
F3 (Hz): 69.04
Qtc:  0.86