hi i'm going to buy some speakers for my car, and I dont know which brand to get, as it says on the subject i've looked at some jbl's and polks but i dont really know if those are good or if i could get something better for the price, these are 6x9's, i can get the jbl gto 926 (somewhere in this forums i read that 2 ways where better for the rear) for $65 =), and the polk db690 for $130 is it worth it to spend almost twice for the polks.