Our 1963-1964 Impala Hertz Cento Premium Stereo Kit is probably our best sounding, 4 or 5 speaker stereo package. The Hertz Cento speakers feature Tetolon, soft dome tweeters which give the most accurate and natural response out of all of the speakers that we offer in these kits. This 1963-1964 Impala Hertz Cento Premium Stereo Kit includes your choice of radio, a pair of Hertz Cento kick panels, a pair of Hertz Cento 6x9 speakers, your choice of amplifier, the option to add a subwoofer, and all the wiring needed to connect everything together. Short of our 7 speaker stereo packages, this is the best sounding kit we offer. Some may even argue that these speakers may sound better than the 7 speaker packages.