2. misc-audio
  3. 181551-103147

Speaker Hum

I just moved into a new (to me, actually built in the mid 60s) house where no matter which outlet I use I get an audible hum through the speakers when the volume of the integrated amp is pushed past 50%. Would any power conditioners improve or eliminate this severe of a problem? Any thoughts would be appreciated!
jdm11
fuzztone's avatar
fuzztone
5,641 posts
 

Sounds like cable TV.

jdm11 OP
61 posts
 

Yes same hum regardless of input. Also I thought of the tv so I unplugged everything except the amp. With just the amp plugged in the speakers hum starting at just over 50% volume and get the hum gets pretty loud as you get near max volume.

noromance's avatar
noromance
10,162 posts
 

You sure it's not either cable TV as @fuzztone suggested, or an internet (Wi-Fi) modem nearby?

jdm11 OP
61 posts
 

I do have both a modem and tv nearby but all of those outlets are plugged into one dedicated strip. So I unplugged the strip while testing the hum. The only things I left plugged in were the amplifier and the speakers, which have powered subwoofers. My other components - turntable, phono stage, streamer, etc. were plugged in but powered off. Maybe I need to disconnect them all from the amp as well or that doesn't make any sense? 

jetter
3,106 posts
 

Two steps which might help diagnose the problem.

Disconnect the internet/tv cable from the cable box or/and modem.

Try a cheater plug.

In my situation both helped so I purchased a Jensen VRD-1FF IsoMax Digital RF Isolator.  Problem was solved.

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