Originally Posted by Mike-in-Orange
Polks are very highly regarded speakers, just as Infinity, MBQuart and many others are. The problem with asking for advice on speakers is that speakers are like so many other personal things - what sounds good to me might not sound good to you. Do you prefer Prime Rib or a New York Strip? Blondes, brunettes or redheads (or, like me, all three
)?
I have to go with Mike's answer on this. Very subjective as to preference. However, I can say that the Polks are very high quality too and I'm sure will serve you well.
See if there is an auto sound shop in your area you can visit and listen to both? Just buy where you can find the best price.
I push the Infinity's because of the high quality and very nice extended range. The tweeters in these are wonderful. I can't see the need for a component set. Great mid-bass to boot.
I just compared the specs on both and it looks as though, on paper, the Polks win: Higher sensitivity, Higher power handling and wider frequency response.
Go for it!