Jump to content



Sign up for a free account to remove the pop-up ads

Signing up for an account is fast and free. As a member you can join in the conversation, enter contests and remove the pop-up ads that guests get. Click here to create your free account.

Photo
- - - - -

Speakers Connected to PC are Humming


  • You cannot start a new topic
  • Please log in to reply
2 replies to this topic

#1 of 3 OFFLINE   Rick Shepherd

Rick Shepherd

    Agent



  • 29 posts
  • Join Date: Feb 20 2014
  • Real Name:Rick
  • LocationLower Hutt, New Zealand

Posted June 19 2014 - 10:47 PM

Yes, I know it's an oldie but goodie.

Speaker/Headphone outputs (both front and back) on PC connected to AVR or Amp produces discernible hum through the speakers. Cable is 3,5mm to RCA.
All devices are on the same power circuit and I have thrown a ground loop isolator in there for good measure.
Little AC powered computer speakers don't have this problem.
PC also has HDMI output which is fine.

Any words of wisdom?



#2 of 3 OFFLINE   schan1269

schan1269

    HTF Expert



  • 14,453 posts
  • Join Date: Jul 04 2012
  • Real Name:Sam
  • LocationChicago-ish/NW Indiana

Posted June 19 2014 - 11:00 PM

Is your 3.5/RCA shielded?

#3 of 3 OFFLINE   Rick Shepherd

Rick Shepherd

    Agent



  • 29 posts
  • Join Date: Feb 20 2014
  • Real Name:Rick
  • LocationLower Hutt, New Zealand

Posted June 19 2014 - 11:05 PM

I have just now used a 3.5mm to RCA adapator and run a well-shielded component video cable (2 out of the 3) and speakers connected to the old amp are now hissing, not humming, but the speakers connected to the AVR are good as gold. Problem solved - just need to check up on the amp.






0 user(s) are reading this topic

0 members, 0 guests, 0 anonymous users