Summary: I purchased these to replace the factory speakers in my Chevy Cobalt that had gone out. They are acceptable with no surprises - bass is not as low as factory, high end is pretty clear but nothing to write home about. Buy these for a cheap replacement, but don't expect to be wowed by them.
Pros: Low cost, clear high end
Cons: Poor bass, other better speakers are not too much more expensive
Summary: Have had these in my 97 Jeep for almost a year. Great all around speakers for regular music play with Rock, Yet the bass is not very good for my jeep (soft top) I'm sure in a regular vehicle with a hard top the bass will resonate much better.
Pros: Great looking, very reliable, and good sound.
Summary: I think these door speakers are good for your back doors because not a lot of bass comes from these. They are great for mids and highs though. I have played many types of music on these and the all sound crisp and clear. I personally think they sound great for rock songs and most rap.