Jump to content
The Klipsch Audio Community
Sign in to follow this  
EKBI

Annoing hum from sub

Recommended Posts

AS some of you know i got my hands on a r-115sw.

But i hear an annoying buzz or humming from the sub?

I do use an high end cable. Any idea what that could be?

Martin Pedersen

Denmark

  • Like 1

Share this post


Link to post
Share on other sites

Does it hum even when the receiver is off?  If so, it sounds like an lfe output problem on the amp. 

Edited by actionjackson77
  • Like 1

Share this post


Link to post
Share on other sites

It does... It's not my own receiver, but one the dealer lent me while mine is under operation..

Martin Pedersen

Denmark

  • Like 1

Share this post


Link to post
Share on other sites

Try to hook the sub up with the high input if it has it. Hook the L/R channels from the receiver into the sub, and then the speakers to the sub to see if it still is there.If the hum is gone afterwards it may be the amp on the sub. If the hum is still there after hooking up through high output,that should confirm it's the ground. I had the same issue with one of my Klipsch Subs and when hooked up through high output the hum went away.As soon as I hooked it up through the cable, it came back. Just my opinion though. I'm not an electrician. That was just my instance.

Edited by Jim

Share this post


Link to post
Share on other sites

Take CECAA805's advice.  We just had a tread on this and I use the product with success.  Roughly $ 6.00 and you won't have to waste a lot of time trying to fix the problem.  If you try it, report back with your results. :)

  • Like 1

Share this post


Link to post
Share on other sites

Have you read THIS thread?

 

If this doesn't work, at least you'll get a good laugh how everyone is attacking each other.

  • Like 1

Share this post


Link to post
Share on other sites

I'll try it if the hum is still there when i get my receiver back from repair.

Thanks for your inputs!

Martin Pedersen

Denmark

Share this post


Link to post
Share on other sites

What happens when you remove the input cable from the AVR, (with it still plugged into the sub) does it still hum?

 

If it still hums, take the input cable off of the sub and then see what happens. Still hums, certainly a sub problem. If there is no hum with just the sub turned on, then the sub isn't the source. If there is a hum with the sub turned on and the input cable plugged into the sub, but not the AVR...cable problem.

 

After testing all the above, If it hums with the input cable plugged in (to both sub and AVR), sub turned on and AVR turned OFF, something silly in the AVR.

 

Some ideas to help troubleshoot. Hope that was clear as mud  :unsure:

Share this post


Link to post
Share on other sites

Them it must be the AVR. Just been confirmed with your suggestion.

Martin Pedersen

Denmark

Share this post


Link to post
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

Sign in to follow this  

×
×
  • Create New...