If you added a new electrical device, it could be anything from a cooktop to a heater. This device could be causing a DC on mains issue which causes the transformer to buzz. So you need to isolate the noise. If the driver is making the noise, it is most likely a ground issue somewhere, aging components or aging sub cable with deteriorating connector. If the transformer is buzzing, it is most likely the DC on mains issue. Emotiva makes a specialty filter that works if that is the issue. If the sub is old, its not worth fixing unless it has a special connection for some reason.
60 Hz Hum from Powered Sub
Hi All-=
I have an older (late 90's?) Tannoy PS110 powered subwoofer. It has a 3-prong (grounded) permanently connected power cable. Over the last month it has developed a 60 Hz hum. I've plugged it in different locations in the house to rule out ground loop. The hum is present whether there is an audio source connected or not. Is it time to just move on or is this something worth repairing? Could this be something simple, and if so, how can I diagnose it? Any suggestions are appreciated!
Thanks,
G
I have an older (late 90's?) Tannoy PS110 powered subwoofer. It has a 3-prong (grounded) permanently connected power cable. Over the last month it has developed a 60 Hz hum. I've plugged it in different locations in the house to rule out ground loop. The hum is present whether there is an audio source connected or not. Is it time to just move on or is this something worth repairing? Could this be something simple, and if so, how can I diagnose it? Any suggestions are appreciated!
Thanks,
G