Edge EDB612TA 12' X 2 Car Speakers
http://www.amazon.co.uk/gp/product/B0031DZFU8?tag=istiqomah-21
12 inch twin active bass reflex subwoofer enclosure with built-in amplifier Perfectly matched active series subwoofer
2 x ED512A subwoofer loaded MDF construction 3 inch port delivers outstanding bass response
Integrated monoblock bass amplifier Hardwearing tight weave acoustic carpet trim
Secret channel to hide unsightly wires Speaker Size 12 324 mm x 2 Impedance 1 4 or 8 Ohm
RMS Power 600 Watts Max Power 1800 Watts Amplifier Type ED7300 Full amplifier wiring kit included