Do all toroidal transformers hum?

Amplifier hum problem SOLVED!!!. Gbart was kind enough to make me a simple DC blocker (with high quality Caps and resistors). I received it last night, I plugged the amp into it and VOILA NO MORE HUM. Not even a hint of it. I pressed my ear against the amp. to hear the faintest hum, but nothing, absolute SILENCE. You won't believe how much the DC blocker from Gbart costed... $72. Yes it's just Seventy Two dollats.

THANKS GBART

It was actually caps and a diode bridge, not resistors. :-)

Well Gbart, I told I was a novice :-))

Yes, Try putting neoprene under it. Tweaker

Here, Two types of possible noise here:

(1) On the sub issue, it is mechanical vibration. The transformer probably needs tightening or damping using some sort of rubber, or it is a crappy transformer and buzzes internally. I don't buy the "DC on the AC" theory.

(2) On the Ampzilla issue, you don't say if the noise is through the speakers or mechanical noise at the amp. This would be helpful.


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