2. amps-preamps
  3. 153922-46

Bazaar buzz

So if I plug my ARC Classic 60 into the wall with the speakers hooked up and turn it on I get no buzz. Please note that no other equipment is plugged in NOR are and interconnects attaches to the amp or any other piece of equipment. 
HOWEVER, if the only thing I do is plug interconnects into the amp - nothing else, I get a buzz/hum.  Mind you the cables are ONLY PLUGGED INO THE AMP. 

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Showing 6 responses by georgehifi

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georgehifi
10,312 posts
 
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georgehifi's avatar
georgehifi
10,312 posts
 

Get some shorting rca’s plugs (not those stupid rca caps) it’s the only way "you" are going to find out if it needs a tech to look at it. Both channels should be quite when these are in. If not see a tech.

https://www.ebay.com.au/itm/Onkyo-TX-DS989-Stereo-Receiver-Parts-Original-RCA-Shorting-Plug-Noise-Terminator/173848128831?hash=item287a27ed3f:g:x74AAOSwkNFclo7J&frcectupt=true

https://www.ebay.com.au/itm/RCA-Shorting-Plug-for-Vintage-Fender-Pro-Reverb-Amp-No-Need-for-a-Footswitch/174113224229?hash=item2889f4f625:g:5C8AAOSw5VFWMAHP&frcectupt=true
georgehifi's avatar
georgehifi
10,312 posts
 
You shouldn't ever unplug anything while the amp is on, this lead to blow ups.
Do what I said with shorting rca plugs. If it's their while both inputs are shorted, it needs a tech to look at it.

Cheers George  
georgehifi's avatar
georgehifi
10,312 posts
 
Just to add, if you have a Buzz still with the inputs both shorted, then the amp has a problem, and needs to be looked at.

Cheers George 
georgehifi's avatar
georgehifi
10,312 posts
 
Sorry misread your first post, as you have a buzz when the inputs are open circuit, but in fact it’s the only time the buzz is not there.
See if you have a buzz when you plug in some "shorting rca plugs" into the amp.

Cheers George
georgehifi's avatar
georgehifi
10,312 posts
 
So if I plug my ARC Classic 60 into the wall with the speakers hooked up and turn it on I get no buzz. Please note that no other equipment is plugged in NOR are and interconnects attaches to the amp or any other piece of equipment.
Your getting an "open circuit input buzz", if you put shorting plugs into the input, the buzz should go away, same if you have preamps cd players or dacs connected. (The input needs to see a load)
Cheers George
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