Throughout its 12 year lifetime music in my Peugeot 205 has only been supplied by casette player and FM radio. As soon as my empeg was installed I noticed that at relatively high volume the frequency response of the factory speakers was just dire! Absolutely no bass, and barely any mid-range frequencies to speak of. So I'm investigating replacing factory speakers with a pair of relatively cheap, simple one-piece speakers. I'm not interested in a full tweeters/mids/sub-woofer stereo installation yet, but just want something that is capable of producing at least some low frequency sound. Good enough to compete with my cheap micro-hi-fi at home.

In the sub 50 GBP range there are quite a few sets of 10cm speakers available, for example the Kenwood KFC-1058S, the Pioneer TS-G1016, and the Sony XS-A1026. They all claim a 45Hz to 20Khz frequency range, but how true is this in practice? Does anyone have experience with these sorts of speakers?