https://youtu.be/vzwUUhqCMjI
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: 89.5dB
Resonance frequency (f0): 36.3Hz
Mechanical Q factor (Qms): 5.71
Mechanical Q factor (Qes): 0.67
Total Q factor: (Qts): 0.60
Xmax: 30mm
Force factor: 15.1N/A
Magnet Weight: 300Oz
1=Outer Dimension: 385mm - 15.16"
2=Mounting Depth: 253mm - 9.96"
3=Magnet Dimension: 226mm - 8.9"
4=Mounting Hole Dimension: 354mm - 13.948"