humm.

[Bushikai]

Hello, I was hearing a "hum" noise coming from my system until I discovered it was coming from the DAC. I connected it to the power supply with a groundless adapter. Problem solved. Any comments? Thanks.

 

[mtemur]

Ground loop

 

[Bushikai]

I just found out the Lampi DAC is responsible for the Hum.

 

[treitz3]

I used this when I had mine with excellent results. You will need another set of interconnects though.

Jensen Iso-Max CI-2RR RCA Stereo Line Input Isolator Hum Eliminator

Jensen Iso-Max CI-2RR RCA Stereo Line Input Isolator Hum EliminatorUse the CI-2RR to remove ground-loop hum from unbalanced stereo signals in virtually any sound application. With high quality RCA cables, connect the CI-2RR between your source device (cable or satellite set-top box, audio...

www.parts-express.com

Tom

 

[Bushikai]

I used this when I had mine with excellent results. You will need another set of interconnects though.

Jensen Iso-Max CI-2RR RCA Stereo Line Input Isolator Hum Eliminator

Jensen Iso-Max CI-2RR RCA Stereo Line Input Isolator Hum EliminatorUse the CI-2RR to remove ground-loop hum from unbalanced stereo signals in virtually any sound application. With high quality RCA cables, connect the CI-2RR between your source device (cable or satellite set-top box, audio...

www.parts-express.com

Tom

What if the Humm comes from the Lampizator transformer?

 

[treitz3]

Hello, @Bushikai. The hum I had came from the Lampizator and was broadcast over the speakers, whenever I hooked it up. The hum did not come from the transformer when simply powering it up. The Iso-Max will not work for physical transformer hum. There are things that you can do to help thwart that from happening, but my experience tells me that replacement is the only long term solution for that, as the hum always returned on components where repairs were attempted. Not to say that permanent repairs aren't ever possible, I am just saying that I was never able to make any permanent repair on any that I have worked on.

That said, it the hum is broadcast through your speakers, then the Iso-Max will eliminate any hint of hum from ever being audible. The signal did not seem to be degraded at all when using this, in case you were curious about that aspect. It simply eliminated the hum.

Tom