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A quick question?

I know this has been addressed ad nauseum so bear with me. Just got new speakers (Sonus Faber Grand Pianos) and I'm hearing hum when I put my ear up to the speaker. It is definitely from the amp because I turned things off one by one to isolate. I tried a cheater plug but it didn't work. Is this level of hum, very low, normal? My amp is c-j 11A.
128x128jond
sean
6,231 posts
 
If you have any products that make use of a non-polarized two prong plug, try reversing that and see what happens. It might not specifically be the C-J that is humming but a combination of equipment connected to it. Sean
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msnloeth
57 posts
 
It is for me. I was told that if you can't hear it from your usual listening distance it is not a problem.
sugarbrie
3,854 posts
 
A little hum is normal on a lot of tube gear from my experience.
jcaudio's avatar
jcaudio
237 posts
 
Did you try the cheater plug on the pre-amp? Also try a shielded interconnect.
jond's avatar
jond OP
5,857 posts
 
Thanks guys. All of my interconnects are shielded and I tried a cheater plug on the whole system via my power conditioner. I only hear the hum when I put my ear to the speaker, not at all from my listening position. With every other component turned off the hum was still there with my amp, making me think it's transformer hum.
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