I have moved house and now I'm getting a lot of hiss/static noise on my monitors from my iCA4+, the hiss is loud enough to turn the speakers on through their autopower function (the speakers are the small Genelec 8010As). Nothing appears on the metering and the noise only goes away when I power the unit down (either with the front button press or by removing the power supply).
I've unplugged everything from the unit except Outs 1 & 2 and the power (e.g. no inputs or USB) and it doesn't resolve the issue. I've ensured the speaker cables are away from power leads and this doesn't fix it. I have also updated the firmware and moved to Auracle instead of iConfig and that didn't fix it either.
I'm not knowledgable in the field but all I can think of to do now is change the power supply but the manual explicits tells me not to do this so i'm stuck.
Any guidance on this is, as always, greatly appreciated