The only thing you ave to be careful, that some manufacturers in order to save their insane prices in Europe (ML 390s here 9.200 euro, equals 12.000 usd) and block black import, put a small chip inside their machines to allow run it only on 60hz. Thats a problem, and only Psaudio P300 would help you out. So, you really should check the manuals of each gear what it says.
