I have a 100 watt amplifier in my boat connected to a sub woofer. For some
reason it has blown a fuse and continues to do so when I replace the fuse.
I've pulled the amplifier out and connected it to a 12 volt battery with no
speakers attached. It doesn't seem to blow but I can't tell if it is
working.

Anyone know if speakers connected to the amplifier could short and cause the
amp to blow fuses?

Any other thoughts or suggestions are appreciate.

-Kim