I have a US Single Recto that I run on 240v in Australia through a step down transformer. Twice now I have mistakenly plugged it sraight into 240V. The first time I blew the fuse but it was all good. This time I think I have damaged it. The clean channel is fine but the O/D channel has lost significant out put as well as definition. I guess once I get it fixed I should look at replacing the power tranny with a 240v huh.