To enjoy the various kinds of music like rock, pop, jazz or folk the basic components of the car audio system are not enough. You must upgrade to Subwoofers; though some cars do come with built in subwoofers they are of poor quality and do not produce great effect. Subwoofers suitable for cars are available in various price ranges, styles and sizes making upgrading an easy option, check www.autoradio-1001.com/fr/. Smaller woofers produce higher frequencies. For the best acoustic experience place two small woofers in the kick panel, a midrange speaker in the front door panels and a three way full spectrum speaker in the back of the car.