Question about Cerwin Vega E-312 Speaker

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What could be wrong?

I loaned a neighbor my speakers and he says that when they were changing a song it just stopped working, I've tried the speakers with two different receivers and nothing, no sound. The fuses look fine. One of the receivers also flashed PROTECT when I was trying to get sound. what could be the problem

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Cervin Vega has allways been cheap on the cross over networks. Too small components, resistors and coils that burns out due to cost savings during manufacturing.
I guess that while playing, the temperature on the componets were so high, that the expansion of metals made electric contact untill the small pause between the songs cooled down connections, and then lost contact completely. The solderings has dried and shrinked. Much may have happen.

Also, sudden break in the music (Changing song with cheap players) will damage the speaker drivers. Imagine interrupting a bass signal that has an electric potential of 70 - 100 Volt. A spike of very high energy will pass through the high pass filters and damage midrange and tweeter. Bass drivers usually survive these spikes, but not allways.

Remove the crossower network and take a look at it. You do not need to be an engineer to see if that is "abused" or not.

No matter what, your neighbour is responsible for damaging your speakers, and will hopefully make it up with you.

Posted on Feb 04, 2015

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The problem could be that the speakers were driven too hard and burned out. The fuses that "look fine" could have been replaced after the fact.

Posted on Mar 19, 2014

Testimonial: "I know for a fact that the fuses werent replaced, but even if they were, wouldnt that make them work now?"

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