2. amps-preamps
  3. 1233193243

tube amp noise


I have an integrated tube amp and recently started noticing a small popping noise coming from the speakers once in a while. If I get near the tweeter (< 1'), I hear a background hiss and a small pop every minute or so. Most of the time, the pop sound can be only heard less than a foot or two from the tweeter. Is this normal tube amp behavior or is something wrong? I.e. do all tubes make any popping sound in addition to low level hiss? I changed tubes and still the same thing. Thanks for any help.
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Showing 1 response by andr

andr
109 posts
 
Same thing happened to me. New preamp unit and some hissing with popping noise once in a while. Even after tube rolling.

Happened to be an interconnect problem. The connectors themselves got a little loose. Tightened them and the problem was solved.

Another possibility that was brought to me by a technician is older cabling. An old interconnect that has remained plugged and untouched for many years can break inside its shielding sleeve without any apparent marks once it is moved or twisted again. Witnessed that problem at my friend's place when he changed is amplifier.
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