I put NVX speakers in all 3 of my dash spots,WAY better and the sound great. I got ahold of some Polk Audio db351 speakers to try, I have had good luck with Polks in the past. They were a step backward, even though they were more efficient they took more volume to do anything and there is no definition in the highs, one really strange thing is the soundstage went from around my face with the NVX speakers to around my shoulders with the Polks, not good, so now I will have 5 Polks for sale. The NVX 3.5's I paid 35 for 4 brand new. I will switch the fronts when I put the Morels in my doors.