Hi there I raised this issue once before but thought I'd start a new thread as developements in information. I bought a sunn head a few months ago from the states and imported it here to the UK. My problem was converting the power voltage for the amp from 110v to 230v to run here on UK mains. I sent off my amp to specialist to see if it was possible to convert it internally. They've now got back to me with the nes that it isnt, and to replace the power transformer insinde will cost hundreds. So the solution is a step down convertor transfomer. Trouble is the amp needs 1800w power needing a converter of that or higher. which costs money. £140 to be exact/ Machine mart, a construction etc company here the UK sells convertors to use 110v power machinery here in the UK at around £70 or so. Many people have told me, "oh you just need a yellow box from mchine mart" so I fugured I coukld save some cash. but when I rang them, the company told me, that they are too "harsh" and "corse" to use for an amp. This confuses me as it does the same job. Electricity is electricty no? would I be safe using this to convert the voltage for my amp or not? heres the machine mart convertors. http://www.machinemart.co.uk/shop/range/guid/C1C63496-8E8F-4533-A0D9-BF9A15436A24 And heres the company that will cost me £140. http://www.newmarket-transformers.co...sp?action=view Advice?