Only to let you know that I'm not only one of those people that think something sounds nice as long as it plays high in volume, I'm more an audiophile on a budget. I actually appreciate nice sound at mid-low volume, which is how real people play on their cars, not the brainless teenager eliminating his ears to look cool driving daddy's car.

Installed these on my new 2011 Kia Optima on the back doorways. The sound is quite good: nice bass, clear highs and overall high ending sound. Polk made a new loyal customer here.
Shame on me personally, I decided to buy Infinitys Kappa 62. 9i for the front doorways in order to see if they were any better that the Polks, but what a disappointment. I should have sticked with another set of Polks.