One more question. I just got WA6SE from other head-fier. When I tried it at first with Sophia and 6EW7 combo, it worked really fine. When I went back home and tried it again, it couldn't work and I found a fuse was dead. I went to Radshack to get the replacement. just turn it on and the Princess flashed inside!
and a fuse is dead again. -_-"
I don't know what's wrong with it. I connect the WA6SE with Signal Cable power cord. I guess that shouldn't be a problem, isn't it?
EDIT: after changing to another combo, the problem is the Sophia which makes the fuse dead. Everytime I put the Sophia in and turn the amp on, it flashed. I guess I need to contact Jack Wu for the clarification.