2. amps-preamps
  3. 1209864603

pre-amp unacceptable noise level?

How much is an unacceptable level of noise/humming etc. from a pre-amp? I just bought a new tube pre-amp and when I replaced my old solid state one with it the noise level from the speakers practically tripled. There is an audible humming from the listening chair 10ft. away. I can't say I'm particularly happy with this considering the one I replaced did not do this.
fruff1976

Showing 1 response by dcstep

dcstep
1,518 posts
 
Humming sounds like a grounding problem. Is your TT grounded to the amp or pre-amp? You might try moving it around to different components.

Are all you components plugged into same outlet? If not, try that. If none of that works, then try the cheater plugs.

Dave
More to discover