2. amps-preamps
  3. 184184-118085

Audible Hum From Integrated Amp

I am getting a low volume but audible hum from my Rogue Sphinx. I also hear volume changes through the speakers ( with no music source of course). I have tried other amplifiers in the system, no hum. Any suggestions on what I might do to eliminate this fairly minor but annoying problem? Thanks .

mysterioso1

Showing 5 responses by mysterioso1

mysterioso1 OP
29 posts
 

Jerry - Thanks...The hum is audible from 10 ft away at 10:00 volume. This is a tube pre amp w/Class D power. I have changed the pre amp tubes with no change  I have no unused inputs...all tied up..

mysterioso1 OP
29 posts
 

I think I'll call Rogue tomorrow..it's not a new unit, so I don't expect much, but who knows. Is it worth replacing the power cord? I'm using the stock cord that came with the unit.

mysterioso1 OP
29 posts
 

Erik - I hear the volume control moving when I adjust it. Scratching , as you said, or ticking is a good description.

mysterioso1 OP
29 posts
 

Much thanks Erik. I'm going to reach out to Rogue tomorrow to discuss.

mysterioso1 OP
29 posts
 

Thanks for all the input and suggestions..I ended up swapping out the power cord for another that I had in the house. Definitely reduced the hum. 

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