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Subwoofer hummmmmm

Running a Vandersteen 2Wq sub, connected to a NAD 375 Bee integrated amp. The sub is plugged into its own electric socket. Vandersteen recommends it be kept on all the time. When the amp is turned on, no problem. When the amp is turned off, the sub emits a low hum. All thoughts, suggestions welcome.
kavakat1
gdnrbob
4,508 posts
 
Why not call Vandersteen and get it from the designer's mouth?
Mr. V. usually calls back the next day.
Bob
goheelz's avatar
goheelz
297 posts
 
Dedicated lines fixed hum problems in my system.
kavakat1 OP
135 posts
 
I did message RIchard V. He did respond very quickly. Suggested I leave both the NAD and the 2Wq on all the time. Said both would last longer if I did so. The obvious and quick fix. I was just curious as to why it hums.
gdnrbob
4,508 posts
 
I am glad to hear Mr. V contacted you quickly. He really provides great service.
As far as the hum goes, it may be your electrical wiring. Something isn't grounding properly.
Perhaps Almarg will chime in. He knows more about such things than I.
Much more...
Bob
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