Question about Mission 78C Center Speaker
The most likely cause is the Crossover unit inside the speaker has failed, It is possible that a wire has come loose also inside the unit. The Crossover unit is what separates the High Frequency sounds from the Mid and Bass Frequencies, if this unit has failed or a wire has come loose then it will cause your problem.
By Unscrewing one of the outer speakers you should be able to see the wiring. trace the two wires from these outer speakers back to there first join, make sure it is connected correctly.
There should be two wires coming into the back of the box, then directly to the crossover unit. from this crossover wires to each individual speaker.
I hope this helps your problem Regards GM
Posted on May 28, 2011
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Posted on Jan 02, 2017
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