New here, already read a few topics about the REL hum issues but didn’t see my specific case.
I have 2 REL r505’s which I love. They are fantastic.
They are connected to a Vincent hybrid tube amp with REL speakon high level cables.
Unfortunately there is a hum when I turn OFF my amp. When the amp is turned on, there is no hum.
I tried disconnecting the BLACK wire of the high level cable, and grounding it to the amp, as told by REL. I also tried just disconnecting it and taping it. Also connecting a RCA cable from amp to 1/LFE doesn’t do the trick.
I even shielded the high level cables with a PVC tube, behind the component rack where other cables maybe interfere with electromagnetic radiation.
I’m out of clues.
Greetings from the Netherlands,