Specifications:
RMS Power Handling:  1000W
Max Power Handling: 2000W
Nominal Impedance: Dual 1 Ohm
Voice Coil Diameter: 2"
Frequency Response: 10 Hz ~ 500 Hz
Sensitivity: 78.8 dB
Resonance (Natural) Frequency: 42.9 Hz
Magnet Weight: 270 oz
Magnet Type: Ferrite
Cone Material: Carbon fiber
Surround Type: Tall U Shaped Foam
Thiele & Small:
Free Air Resonance (Fs): 42.9 Hz
Resistance (Re): 1.8 ohm
Mechanical Factor (Qms): 5.05
Electrical Factor (Qes): 0.48
Total Factor (Qts): 0.44
Equivalent Volume (Vas): 2.8 L
Compliance (Cms): 110 um/N
BL Factor (BL): 67.2 TM
Moving Mass (Mms): 120 G
Excursion Max (Xmax) (One Way): 0.59" / 15 mm
SD: 133.9 cm squared
Efficiency: 0.05%
Le (1 KHz): 0.83 mH
EBP: 84.9
Measurements:
Overall Diameter: 7.08" / 180mm
Front Mount Baffle Cutout: 6.30" / 160mm
Total Depth: 6.34" / 161mm
Mounting Depth: 6.06" / 154mm
Weight : 12.50 LBS
Enclosure Installation Suggestions
Sealed:
8.5 L / 0.39 cu.ft
Qtc / F3: 0.423 / 83.7 Hz
Ported Compact:
12 L / 0.42 cu.ft
FB: 42 Hz
Port Area: 3 squared inch
Port Length: 10"
Ported:
20 L / 0.71 cu.ft
FB: 40 Hz
Port Area: 6.9 squared inch
Port Length: 14.3"
Bandpass 4th order ratio: 3:1