OK this morning I decided to play my system but I switched the phase to 180 to see if there was any difference. I played the sub and it sounded basically the same as the phase on 0 maybe a little louder. After a while everything cut off and I noticed the fuses in the amp blew for the first time. I waited until I got home to replace the fuses and when I turned the amp on all I hear is like a static sound and the sub doesn't move at all even if I pust on it with all my strength. Please tell me what went wrong. Its a sinhle 15'' L7 ported.
