Options are:
-Look for blue, or most fluorescent colored bulbs. They are usually blue (if not, lower wattage fluorescent lamps work better) or neon colored..
-Still, if you don't have your own match, it would be useful to have one you can get for your next repair. Look for any flaws in the wiring/circuit..
-Remove the blown fuse and note the amperage. If you look at the bottom of the fuse, the amperage will be stamped into the center contact..
-Test the voltage of your speaker so you can tell if it has a voltage over 50 volts. If you live near a power source such as a home generator use a voltmeter to inspect the voltage voltage..Choose from options above and answer: What most naturally follows?

How to find and clear a short on a " fused " circuit
Make a note/list of all the items that are not working on the circuit.
( lights and appliances )
If you live near an electrical supply house go and purchase a 220volt , 60 or 100 watt light bulb.
A standard bulb will also work, but a 220 volt bulb would be better.
Answer:
Remove the blown fuse and note the amperage. If you look at the bottom of the fuse, the amperage will be stamped into the center contact.