Question about Classe CAV-500 5-Channel Amplifier

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Channel cuts out

I have a CAV-180 which has had an intermittent problem for several years, and now seems to behave more consistently: whenever the amp has been powered on for 15 minutes or more one of the channels cuts out completely, no sound or distortion. All other channels behave fine. If I turn the amp off for an hour or so and then turn it on that channel will work perfectly for the next 15 minutes, then turn off. I presume the problem has something to do with the temp of the unit when it has been on for awhile but would like anyone's expert help if this can be repaired at home or I need to ship it off. Thanks !!

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Re: Channel cuts out

I suggest you switch your speakers and test again , if the same happens , ship it it can only be an output problem >>>>Good luck

Posted on Mar 19, 2007

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I see now how it could have happened to both amps. Yes, this triple speaker combo will cause this problem.

Next time if you want to run speakers like that, instead of parallelling them, series them.
That way the load is balanced between the speakers.

Here is a great primer, dont worry about the calculations and mumbo jumbo, the pictures should tell you what you need to know to get it done.

also when you talk about bridge, that is usually done on the amp rather than the speaker. For example I could have a 4 channel amp, and bridge it to 2 by combining the channels, BEWARE not just parrallell again, there will be a specific order for each different amp and it will be marked.
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Hope that helps once again. I'm going to look up that amp, if you want more specifics.


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