MW Audio MW-5081-8: 8" black polypropylene cone with polyether foam surround.

Specifications and Small Signal Parameters
Voice Coil Impedance: 8 ohm
Rated Frequency Response: 40 - 2.5k Hz
Sensitivity: 88 dB SPL
Rated Power: 50 watts
Program Power: 100 watts
Magnet Weight: 570 gr (20 oz)
Fo: 40 Hz
Re: 7.5 ohm
Qts: 0.51
Qms: 5.3
Qes: 0.57
Vas: 45 liters
Xmax: 6.2 mm
No: .5 %

Dimensions:
Outside Diameter: 8.2"
Cutout Diameter: 7.1"
Internal Depth: 3.5"