The simplicity. A single strand of copper wire has caused a short and there is no power to the amps. With a faulty multimeter, it takes a while to troubleshoot. Thank you Marco and TeZ, the inside of the transformers is intriguing. Assessment: all 5 amps and 2 x transformers fully functioning. (memory nudge: the careful tech spec on the Bed was done for a reason KM.) Has to be a short. We track it down to one amp which I rewire and yes easy, we are in action. The Bed sits well in the concrete space of Eyebeam. Good to have it not just sounding but really visible once more.