wcheng, it might be the speaker tripping the amps overheat safety shut off. Disconnect the speaker cables from the speakers and check the resistance of each speaker with a meter. They should be very close to the same. In order to trip the amp the speaker's impedance would have to go below 2 ohms. A short anywhere in the speaker could do this and you should be able to see it with a meter. If that speaker reads low then check each driver independently then the cross over. If they are still under warranty let the dealer deal with it.
Help with Sonus Faber Extrema issue
I have a pair of Sonus Faber Extremas hooked up to a pair of Parasound JC1 monoblocks. One of the speakers periodically will exhibit signicantly lower volume (down to almost no volume) in the middle of a listening session. It seems to occur when during more dynamic passages and also when the amps have been on for a while. If I turn everything off for a few minutes, the problem usually goes away. I reversed the speaker cables at the speakers and the same speaker still exhibited the issue, so the issue is with the speaker. What could cause this problem? Could it be a bad connection somewhere in the speaker? Could it be that crossover parts need to be changed due to age?
Showing 2 responses by mijostyn
wcheng2, You need a volt /ohm meter. You can get one cheap. https://www.amazon.com/AstroAI-Digital-Multimeter-Voltage-Tester/dp/B01ISAMUA6/ref=sr_1_4?crid=25A5L2Z8KUDEW&keywords=volt+ohm+meter&qid=1571097024&sprefix=volt+o%2Caps%2C160&sr=8-4 There is a short in that speaker. Again, if they are still under warranty let the dealer deal with it. If not you are on your own. You have the good speaker for comparison. Good luck, Mike |