Hum Sound - Problem or Not ?

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dkronie

dkronie

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I found the below ad on Gumtree, I am not related to the seller in anyway , just wanted to know the problem he/she describes below if it is normal or does it indicate a problem ?
I assume the hum is from the powersupply

The only problem is that there's a bit of a hum when it's on. If you're listening to music, it's covered up but if it's on and there's no music on then you hear the hum. Solution: turn it off when not in use.
Click to expand...

http://capetown.gumtree.co.za/c-Stuff-for-Sale-tv-audio-music-Pioneer-KX-440-stereo-receiver-amplifier-tuner-W0QQAdIdZ228199824
 

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