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John, Engineer and electronic enthusiast for more than 12 years.
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I recently bought a channel master model cm-7777

Customer Question

I recently bought a channel master model cm-7777 preamplifier from mcm and it worked fine until this last week and it quit sending any signal and the transformer was hot. I had to go back to my old preamp which is not near as good.
I was wondering how long this product is under warranty
Submitted: 11 months ago.
Category: Consumer Electronics
Expert:  Jack replied 11 months ago.

Hi , i`m jack

Perhaps i can help you with this

Although the hot transformer is usually not a good sign , How did you determine the preamp was defective ?

How long since you bought it ?