as it says in the title, i have a 1000watt mono class D MTX thunder series.have it for a lil over a year and its been fine..iv replaced the fuses a few times..i was just out driving and it cut out..blew all 3 20A fuses..went to walmart and bout sum more..bout 3secs of bump blew all 3 again..have any idea? mayb step up to 25 or 30A?fuses.