Carpower CRB-165P 70W Car Speakers Produced by carpower these speakers are what could be classed as a standard to mid-range in quality they are priced around the £30 margin and consist of 2x 70 Watt mid-range Bass drivers, these type of speaker is designed for the rear of the car, i.e parcel-shelf area and should be assisted with Bass speakers or rear subs along with front tweeters for ultimate clarity. The units are black rimmed with a stylish modern silver cone, advice would be to wear the cone is before applying maximum output as this will allow the rubber to expand without immediate damage caused by the shock of immediate mis-use. Installation is straight forward, the units consist of gold-plated connectors just connect your speaker cable to your system or amp and away you go. The speakers are described as 'powerful mid-range' units assisted with a powerful 'kick bass' driver with a polypropylene cone. Impedance (Z) 4Ω , Max frequency 500HZ / Max output music power 70W. Hope this is of use to someone. Thanks for reading.