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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
jeffo19

Showing 1 response by chipgreenberg

chipgreenberg
10 posts
 
Jeff, I have a 1501a that was sent back to Jolida because the left channel failed. When I got the amp back it had a similar hum, even though none was there before. Much to my dismay, it had to go back. I was pretty frustrated as I was without my amp for a month.

Jolida was great. They sent me a new one and pick up shipping for the old because it left their repair center with the hum

Chip
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