I have had a number of Jolida amps. I have a JD301BRC now. The sound is great, but the buzzing noise through the speakers is getting worse all the time. A couple of the other amps I had also had a buzz coming through the speakers. I would not think the tubes would cause it, but that is possible. A bad ground could, and also a bad transformer. Any number of things could cause it. I like the sound of Jolida hybrids, but it seems buzzing is a common issue.
Jolida Hybrid humming noise through speakers?
I have 1501RC and when the amp is on, there is quite a noticable humming sound that comes through the speakers. You don't hear it from the amp itself, but throught the speakers. You can hear it from several feet away. I have this plugged into a power strip/surge protector, but my other power amp had no problem. Is this a common thing with tube amps? Is there something that can be done before I send it out for repair? Thanks