I just hooked up one of my 5x7 Alpine Type R components in my car. I hooked them correctly to the crossover and straight to the factory deck. The deck is running I figure about 15x4. The speakers are rated at 60 watts a piece RMS. Now when I turn the bass up the Alpine woofer distorts and pops. Is this just because of the crossover setting? Or Possibly the lack of power? I had some CDT Audio components hooked to my factory deck in my old truck when I sold it and I could turn up the bass all the way and get very little distortion. Also, I know the positive and negative are hooked up correctly, and the speaker is nice and tight in the speaker pod in the door... which is air tight.