I have a 5.1 system and my surrounds/rears are far in the back so I run 50' (canare cable ) XLR to them and then have an AHB2 amp plugged in to the wall in a different circuit back there. However, when the XLR cables from/to my rear amp is plugged in to my AVM70 (all others are fine) I get the 60hz hum from my subs (connected via RCA - no XLR option on the subs). Unplug the two XLR cables for the surrounds, hum is gone.
I thought XLR made hum not be a thing for stuff like this. Is something defective or do I just have to run a really long extension cord, too? (or wire an outlet in the back on the same circuit)
Thanks.
The XLR cables I'm using are https://www.amazon.com/gp/product/B08YR64JHQ I'm happy to open them up and look at them to see if they're built wrong or something but I'm not sure what I'd be looking for.
I thought XLR made hum not be a thing for stuff like this. Is something defective or do I just have to run a really long extension cord, too? (or wire an outlet in the back on the same circuit)
Thanks.
The XLR cables I'm using are https://www.amazon.com/gp/product/B08YR64JHQ I'm happy to open them up and look at them to see if they're built wrong or something but I'm not sure what I'd be looking for.
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