Home SET Asylum

Single Ended Triodes (SETs), the ultimate tube lovers dream.

You've stumbled on the dirty little secret of High Efficiency speakers...hum!.

Any little tube rush or hum that you'd never heard on a typical system sounds like a jet engine and as soon as you notice it, it's all that you hear.

It's tough to say what will work for you. Often, I have to float the grounds which is more of a ground loop buzz. Or change tubes. That said, my Wavelength Geminis are as close to dead quiet as you can easily get. Another 300B amp worked great on a 95db speaker, but hummed like a banshee on my horns.

Still, to an extent, when you get into the 105db range in speakers, you will hear any buzz or hum if you try. A slight hum that you only hear with your head next to the speaker is likely the best that you'll get. Perfection will be elusive, IMO.

Just keep trying and returning candidates.


-Rod


This post is made possible by the generous support of people like you and our sponsors:
  Atma-Sphere Music Systems, Inc.  


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