Might be worth temporarily moving the sub next to the receiver and testing
with a short cable to make sure the noise is from the cable run.
On Wed, Nov 7, 2018 at 9:31 AM Bill Prince <part15...@gmail.com> wrote:
> So it's a 60 Hz hum? I'd probably try to figure out a way to shield the
> speaker cable.
>
> bp
> <part15sbs{at}gmail{dot}com>
>
>
> On 11/7/2018 4:40 AM, can...@believewireless.net wrote:
>
> I ran regular cable between my receiver and amplified subwoofer.
> Approximately a 70ft run
> through the house. Avoided running in parallel with the power lines but it
> is about 6" away
> from an electrical outlet.
>
> No cable plugged into sub, no hum.
> Cable plugged into sub but not into receiver, loud hum.
>
> Plugged in a ground loop isolator device and hum dramatically reduced.
> However, so was
> the signal to the sub. To the point it might be blocking it completely.
> This was a very cheap
> ($9) device from Amazon.
>
> Swapped with shielded Cat5e cable from Shireen. Same results.
>
> Any idea how to fix this? Get better shielded cable? Better isolator?
>
>
>
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