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Turbosound pa speakers horndrivers

Hello need help here. I was djing one night and some turn on my mic and yelled in it and i lost all my sounds in the horns on both speakers. I changed the diaphragm in them and still no sound and the old ones were not tore or cracked. I dont have a multi meter to test with how can i see if the horn driver went out before i spend 100 dollars a piece to replace them.
 
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If you replaced the diaphragms (which may not have been bad... did you test them before you replaced them?) and you have no sound, then the problem is elsewhere. Since the HF driver itself is not going to be damaged from this action, replacing it will not change anything as the driver is the only component within the driver assembly that can be damaged.

How much troubleshooting experience do you have?

Is there a fuse or fuse like component contained within the crossover?
 
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