I just bought and fi ssd 12 it's around 750rms I have an 1800 watt Kenwood Class D monoblock amp to push it but it doesn't consistently push it cuts out I don't know if I need more power from the amp a different fuze I have a hundred amp fuse under the hood coming off the battery or a better alternator I don't want to keep spending money on new stuff if I don't need it so if anyone could help I would appreciate I.