2. amps-preamps
  3. 1411822537

"Buzz" Coming Through Speakers

I have a Audio Research SP16 tube preamp. I recently noticed that without any music being played (or during quiet music passages)there is an irritating "buzz" coming from the speakers. Since the tubes had considerable play time over several years, I replaced the tubes. However, the "buzz" continued. In the past, changing the tubes resolved the problem. But not this time.

I would appreciate any thoughts you might have. Thank you so much.

Kit
kitjv
steel1
2 posts
 
Had that same problem with my McIntosh MC 205. Use a "cheater" plug. It is adapter plug that makes a 3 prong plug into a 2 prong plug. It cost less than $1 and u can find them at your local hardware store or Walmart. Make sure u bend back the metal tab so it does not touch the metal screw on your socket plate or use the top socket.

Hopes that solves your buzzin' problem. Good luck
kitjv OP
69 posts
 
I assume that you are referring to the plug on the power cord of the preamp. If so, you would be effectively eliminating the grounded prong of the plug. Correct?

I am curious how this might resolve the "buzz" problem since the problem only started recently. Thank you.
yogiboy's avatar
yogiboy
5,701 posts
 
How are you sure the problem is with the preamp and not
something else causing the buzz? If it is not on a dedicated
circuit you can start unplugging anything that is plugged in
to that circuit. A dimmer switch is a known source for
producing a buzz.
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