5.25 inch 8 ohms ARAMID FIBRE (Kevlar) Speaker. 100W rms 200W max 

Excellent Bass speaker (Woofer) with Aramid Fibre (Kevlar) Cone and Rubber Surround.
Heat Resistant 4 Layer Coil and Vented Magnet.
Smooth bass response and high power handling.
200W max    100W RMS
130mm diameter chassis with 100mm diameter 20oz magnet. Fixing Centres 122mm. Depth 80mm
Freq response: 40Hz - 10KHz. SPL @ 1W/m 87dB
Weight 1.3Kg