Summary: I bought these to replace the again rear factory speakers on my 2000 Chevy Silverado extended cap. While these are not going to turn any heads, the sound quality is good, and it is nice to hear bass again. Installation was easy enough; I only had to drill four holes to mount the speakers. One of the mounting clips was broken, so I had to improvise a little, but in the end I have sound at least as good if not better than when the truck was new for a good price.
Pros: Price, fit factory cutouts, good sound quality compared to factory speakers.
Cons: One of the attachment clips was broken, instructions were a bit sparse.
Summary: good enough for the money. I just gotta buy everything from crutchfield from now on. but I sure wish they had 4x6 and 6.5 components that could really handle serious power. I have these hooked up to a Pioneer DEH-X8500BH not an amp and the sound quality at high volume suffers. I am guessing it's probably the deck more than the speakers. I like em enough to not gripe about them, but I wouldn't buy them again.
Summary: Large magnets that produce nothing special
Pros: easy install
Cons: The bass is so muffled by the treble that it is hardly noticeable. Even changing settings on radio barely makes them beat. Had 1 good and 1 blown factory speaker that sounded far superior than these 2 new.
Summary: This speaker blew me away when I installed it in my brothers single cab silverado. The jump from stock to this mtx speaker was wonderful. The mids and highs are equally as good as the polk dxi651 speakers we also installed. Can't beat the price either.
Conclusion: Hooked up the 4x6 to a amp (Sony Xplod 4 ch 600 watts) Had only one of the front hooked up since I was short spkr wire for the other side and had a lil too much power on the amp.. It blew bout 2 months of abuse at max on the cd stereo. Now I turned it down a lil and sounds just as good.