I have a pair of wet sounds icon 8s with a clarion xc2410 amp in my boat. My issue is if I turn the volume up to around 3/4 or higher, after a few minutes one speaker speaker starts to sound bad. It is almost like a static sound, and not terrible, but will continue to sound like that even at lower volumes. Otherwise they sound great if i keep the volume below 3/4 all day long. Any ideas as to what could be causing this? Thanks.