Conclusion: I bought these speakers to replace the stock Ford speakers in back of my ZX2, and OH MY GOD these speakers kick hard! For the size of the speaker, these guys give good deep bass on up to crystal clear highs. The difference between the Rockfords and the stock speakers is night and day.
Conclusion: These speakers are definitely worth the money. I cant tell a huge difference because i had aftermarket jl audios before, but i think i like the RF better. I am running an amp that will make the speakers distort, but it's plenty loud. Crystal Clear sound quality for what you pay.
Conclusion: Right out of the box these thump. I have them in my front door panel of my '96 Corolla. I custom fiberglassed the panels and mounted these speakers. I have heard these out of the enclosure too and they will sound great no matter what. They are very loud and can handle my after market Kenwood radio.
Conclusion: I got my first set of these about a year ago. I placed these in the rear of my 2007 ford mustang. i had 4 way pionner premier speakers up front, these 2 way speakers sound better then those did. I have these all the way around. i also have the 6 1/2 mounted in the sub box. i love these speakers.