Hi guys , I need to go out of country with my F1. As you guys already know it's extremely portable , but I have a small problem. I've searched everywhere I could , and I sent 69234 mails to Markbass ,but I couldn't find any answer. The markbass customer support they don't even reply to me. Can someone please help me? I need to change the voltage to 230V. I tried changing the fuse but it didn't work. Please help me guys.