How to eliminate 'hum'? - AVS Forum
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post #1 of 3 Old 09-29-2013, 02:41 PM - Thread Starter
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HDTV connected to DirecTV genie box with HDMI. 2 Logitech speakers connected to the headphone jack.

There's a constant volume sensitive hum emitting from the speakers. I've switched the speakers with those in a similar hookup on another TV yielding the same hum--it's not the speakers.

Is there not a way to filter/eliminate the hum?

Thanks,

Mark
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post #2 of 3 Old 09-29-2013, 03:35 PM
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You may need a coaxial ground loop isolator to eliminate the hum. Check Viewsonics brand on Amazon, or generic version from MCM Electronics.
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post #3 of 3 Old 09-29-2013, 03:43 PM - Thread Starter
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There's coax from the remote Genie server to the wall jack, coax from the wall jack to the slave then HDMI from the slave to the TV.

So the isolator (I ordered the Viewsonic) simply screws either between the wall jack and coax cable to the slave or between the coax cable and the slave--doesn't matter at what end of the existing short coax cable?

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