I have a 2009 Acura RDX with 2 bad speakers. I am replacing one of the fronts but the speakers are cheap. Really Acura? I was debating replacing the rears, one of which is bad, with after market speakers. But the Acura speakers are 2 ohm and any speaker i buy will most likely be 4 Ohm. I don't think it will hurt the amp but I thought I would get an expert opinion.