Hello All,

I have great news. I have changed the speakers over physically tonight as suggested by Steve and re-plugged everything in like for like on the daisy chain. Noise has gone. I’ve done a calibration test and the rear 5Ks are singing like they should and in the correct sequence

I was just thinking back to last week when this first started and I remember that I tripped out the house mains with a garden electric feed fault. We also had two power cuts for a few seconds. Not sure if this had something to do with it.

Also just to answer a previous question about having the 5Ks serviced. I have owned them from new in 1995 then had the 24 Bit upgrade when it was available. I have never had them serviced and they were used regularly.

Thank you all for the advice and hopefully they stay as they are.

Andy

500, 518, 565Z3, 5500, 5000HC, 5000 and 2 analog REL subs.