Equipment: Origin Live Aurora Turntable Tom Evans MicroGroove+ Phono Amp MF A3CR Pre Amp 2 x MF A3CR Power Amp (bi-amping) ProAc Response D15 I hear intermittent RFI hum when listening to the turntable, the flat seems to have lots of RFI (always clicks and stuff when lights are switched off) and I'm struggling to eliminate it. I've played around with the earh wires on the phono amp and pre amp to no avail. Any suggestions? Are the IsoTek or Russ Andrews silencers worth a go? Thanks