Bluesound Node 2i & KEF LS50 wireless hum/buzz


Hi - 
I recently purchased a BS Node 2i to connect to KEF LS50 wireless speakers. I keep receiving a hum/buzz when playing through Tidal. Has anyone else has this problem?
I have the BS connected via RCA in order to use the DAC in the BS. I've changed interconnects, power cords, outlets, used a Furman power conditioner, just a wall socket, all plugged in the same socket, etc..., and nothing seems to work. 
Bluesound support is a joke. No phone number and I've sent emails roughly a week ago with no response. The outlets in the room were all installed last year and are all grounded. Any help would be appreciated.

skoorb824
Thanks. I finally reached Bluesound support and they suggested doing a factory reset of the speakers and the Node. It worked. Thanks for the tips though.
@skoorb824 ,
Great to hear. A factory reset would be the last thing I would think of doing, in your situation.
B
So I sent the Bluesound Node back because the buzzing returned. I received a new one and the same buzzing, so I don't think it's the BS Node. It pops and makes a loud buzzing noise when I connect the AQ interconnects to the KEF's. I've tried using the interconnects that came with the Node, but alas, same buzzing. 
Really at a loss here as to how to fix this. I've ordered a HumX by Ebtech to see if it may be in the power line. If that doesn't work....... When I'm not playing any music at all, you can definitely hear the buzzing.
Any ideas? Could it be the KEF's? 
Hi there, @skoorb824 did you ever figure this out? I was thinking of going after the same set up.