My Infinity Ref. speakers would not be considered high-end, but more of an entry-level GOOD quality speaker. And I got most of mine through ebay at closeout stores at substantial discount over retail. I agree that a budget needs to be set in place as that ultimately determines the speakers you get. And when looking at them, keep in mind that you want to look for RMS wattage ratings...the lower they are, the easier a factory or a decent aftermarket headunit will power them w/o the need for an amplifier. Again, Pioneer is a good choice if you plan on going a non-amp route.
Welcome, downwardly mobile yuppies, to the dawn of the Age of Nefarious.
1993 SSEi - FrankenJinx - dead and gone.
1994 SSE (136K strong) - 180* t-stat,HD alternator, most unequipped SSE on the club, XM radio, Kenwood CD/MP3.
2006 Chevy Malibu Maxx LTZ - Custom 2.25" manifold-back exhaust w/FM-80. Probably the only Maxx with this system.