So here I was, thinking that my factory speakers sounded crisp. That is until they blew. After that mishap I purchased Infinity Reference speakers and I was not disappointed. I could very clearly hear a major improvement in the quality of the sound. With the volume cranked all the way these speakers will not crack out in quality. I am currently running these speakers without an amplifier and they don't do that well on the bass end. I was using them with an amp for a while and they really performed then. Either way, they are outstanding.
Along with amazing sound they have a very nice and very clean appearance. They come packaged with very durable grilles. I can't even count how many times I've kicked the grille by accident and it's still flawless.
My only major complaint was the mounting process. For my truck I had to drill new holes to mount the speakers. Not a huge deal but it was that much more time put into the installation process. NOTE: Not every vehicle has to have new holes drilled to mount them, but some will.