I have a sony CDX-L410X hooked up with a pioneer gm-x1040 with a small JL sub. I had this set up minus the head unit in a different car, and it rocked the car pretty well. However, right now it seems like its barley hitting, and it only starts to hit hard when the music is up loud, the only problem is that it makes the other speakers in my car distort. Does anyone have any suggestions. I believe the amp is a little more powerful than the sub can handle, although im not sure because i don't know the specs on the amp. Thanks for any help