Hi, I recently purchased a set of Tritton AX Pro's from America to use in the UK. The power supply said it uses: Input: 100-240VAC 50/60Hz 0.2A Output: 9VDC 0.5A 6W MAX So I figured I could just use a US to UK plug adapter. However it doesn't turn on. I'm not sure if it's just a dodgy adapter of I this isn't going to work. Anyone got any ideas? Thanks JM p.s. I believe they are the latest model, with one power source for headphones and the block.