Cone: competition grade paper
Surround material: Foam
Voice coil: 3.0inch
Voice coil layer: 8layer
Nominal impedance: dual 1ohm
Voice coil wire: aluminum
RMS Power: 3,000 wrms
MAX Watt: 6,000 wmax
Sensitivity: 87.5dB
Resonance frequency (f0): 40.9Hz
Mechanical Q factor (Qms): 6.08
Mechanical Q factor (Qes): 0.55
Total Q factor: (Qts): 0.50
Xmax: 21mm
Force factor: 22.9N/A
Magnet Weight: 300Oz
1=Outer Dimension: 320mm - 12.6"
2=Mounting Depth: 220mm - 8.66"
3=Magnet Dimension: 226mm - 8.9"
4=Mounting Hole Dimension: 284mm - 11.02"