I have alpine Type X 5.25 component speakers in the front, and infinity kappa 6x4 in the rear, with an alpine 4 channel amp powering them, as well as an insigna (best buy) amp which powers 1 JL 10w3 sub, in a sealed truck box. I highly recommend you spend the dough and get alpine type X because it is their top line component speaker, and sounds way better than any other speaker, especially the mid range woofer... but buy them online say etronics.com because al and eds will rip you off. but have a pro audio shop install them, oh and get the dynamat in the doors with them, i did.
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