I use a splitter to get a true L/R stereo signal (from my phone) and send it to a pair of KEF Muo. Like many others, my phone has a case. Unfortunately, the 3.5mm plug adapter is not compatible with a regular phone case. In today's phone-centric world, I don't know how the designer didn't recognize this and use a compatible plug adapter. . Luckily I was able to figure this out and get rid of the hum with a different adapter on the end of the speaker.
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