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

SW-12 Hum and or Buzz

Recommended Posts

I've got an old SW-12 that I've had out of service for many years.  I'm trying to get it to function properly again.  I plug it in and I hear a humming or buzzing sound.  It could be a 60HZ sound but the plug that comes with the sub does not have the third ground plug.  It is simply a two pronged plug.  I hear the noise whenever power is going into the unit.  It does not matter if there are any connections made or not.  I hear the same noise with it connected to the LFE RCA on the AMP.  I hear it when there is nothing connected.  The volume of the noise is always the same level whether or not the volume on the sub is all the way up or all the way down or if the volume on the amp is muted or high.  When you pass a LFE signal to the sub, it still makes the humm but otherwise functions properly.  I get LFE frequencies that sound reasonable and all of the control knobs on the Sub appear to function properly.

 

Is there anything that I can do to "fix" this noise other than taking it to a repair shop?  What might be causing this noise?

 

If necessary, I could mic the sub and record it and post a .wav file here. 

Share this post


Link to post
Share on other sites

Just got done with a similar problem.

 

>Follow this thread<

 

Thank you for your response.  I read that thread and I do not believe that I have the same issue.  

 

  • My sub is two pronged electrical.
  • I've tried connecting it to several different circuits within the home, including circuits where other subs in the house are working fine.  I've got 4 other working subs without any buzzing noises.
  • The problem happens with and without a signal being passed into the sub.
  • The sub's other functions work properly and are totally independent on the noise.  The noise happens regardless of any position of any dial and does not change amplitude or sound in any manner regardless if you have a source hooked up or how loud you have the gain.

Share this post


Link to post
Share on other sites

 

Just got done with a similar problem.

 

>Follow this thread<

 

Thank you for your response.  I read that thread and I do not believe that I have the same issue.  

 

  • My sub is two pronged electrical.
  • I've tried connecting it to several different circuits within the home, including circuits where other subs in the house are working fine.  I've got 4 other working subs without any buzzing noises.
  • The problem happens with and without a signal being passed into the sub.
  • The sub's other functions work properly and are totally independent on the noise.  The noise happens regardless of any position of any dial and does not change amplitude or sound in any manner regardless if you have a source hooked up or how loud you have the gain.

 

 

Your amp is in need of repair then.

  • Like 2

Share this post


Link to post
Share on other sites
I hear it when there is nothing connected.

 

Sounds like an amp issue.

Share this post


Link to post
Share on other sites

Thanks for this discussion. I had a fierce hum from my newly purchased R-10sw, I used a high quality RCA cable from the tuner to the LFE , humming stopped. Sub works great.

Share this post


Link to post
Share on other sites

Common problem with this unit known for power supply problem. (Do a search)I have one that was bad almost from day one, now have an amp I got off ebay to power it. At first I had a 2 channel from goodwill ran off avr reciever sub out, wired it straight to sw sub. See your near me I  live in doraville, if you decide to sell it let me know. Good luck!

Share this post


Link to post
Share on other sites
9 hours ago, Ljk said:

Common problem with this unit known for power supply problem. (Do a search)I have one that was bad almost from day one, now have an amp I got off ebay to power it. At first I had a 2 channel from goodwill ran off avr reciever sub out, wired it straight to sw sub. See your near me I  live in doraville, if you decide to sell it let me know. Good luck!

I hadn't tried to fix.  I always like the sound this sub put out.  But I have replaced the sub with a newer model and I really don't need this anymore.  So sure, I'd sell it as is.  How can we communicate offline?  Is there a private messaging feature on this forum?

Share this post


Link to post
Share on other sites
28 minutes ago, DVDMike said:

I hadn't tried to fix.  I always like the sound this sub put out.  But I have replaced the sub with a newer model and I really don't need this anymore.  So sure, I'd sell it as is.  How can we communicate offline?  Is there a private messaging feature on this forum?

There is but never used it, here is my email  lkuyers@outlook.com. 

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...