Im looking for the best 6.5inch speakers to fit in my front doors, they just need to have great sound quality and able to play loud with only the regular 50watts that most receivers can put out. I already have a 12inch sub in my 1991 Pathfinder and am slowly upgrading my sound system. I have a sony head unit that is a few years old which is currently only powering two aftermarket 6x9 speakers.

Any suggestions? Thanks!