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Review title: Worked for My Headphone Amp
Product review: I was using a Little Dot MK V Headphone with Senn HD580 Headphones. My Source was a laptop computer with an Echo Indigo Djx sound card.The MK V sounded great, but I was getting a substantial ground loop hum through my headphones. I tried an isolation gadget for theRCA connectors connected to the headphone amp. This worked, but I was using this setup for playing a digital piano through my laptop andcould hear a change in timbre in the bass notes. Makes sense, right? An isolation transformer on a signal line can act as a low-pass filter.So next I tried the HumX between the headphone amp and the power strip. Problem solved and the group loop hum was gone. I'd recommend the HumX.
