Thank you very much for responding. With regards to the noise, it appears to be coming from the speakers, however we're pretty sure the problem is with the amp/preamp because we connected the amp to another sound system with different components and the noise continued to occur. Also, the output transitors were replaced only on one channel since they were functioning properly on the other channel.
Problem with loud buzzing noise on amplifier
My Audio Refinement integrated amplifier occasionally makes a loud electric buzzing sound usually 10 to 15 minutes after it has been turned on. The sound becomes louder and more frequent over time. Although it eventually burned the transistors, which were replaced, the noise is still occuring.
Has anyone experienced this problem or have any advice on what may be causing it?
Has anyone experienced this problem or have any advice on what may be causing it?