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My 1st tube amp: transformer buzz audible 15 feet?

I recently purchased my first tube integrated amplifier from a local shop. I continue to have problems with a buzz coming from the transformer, which I can easily hear while 15 feet away. Is this normal? Do I have a defective unit?

So far, the transformer cover has been tighten by the shop, and I plugged it into a variac to bring the voltage down from the 120-122 volts coming from my outlets.

After two weeks, I find the buzz unacceptable. Any ideas?
jackpage
Post removed 
jaybo
4,478 posts
 
return it.
birdies
85 posts
 
Jaybo is correct.
ahendler
416 posts
 
If this is a new unit and the shop is local tell them you want a replacement. You should not hear any buzz coming from the transformer. Do try a cheater plug which will lift the ground
Also you could bring the unit to the dealer, hook it up and see if it buzzes. If it does demand a new unit
Alan
mechans
3,048 posts
 
Jaybo is correct times 3.
You don't have to suffer in this hobby.
In fact it should be outlawed.
Nervosa maybe nothing worse.
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