Hi folks,
I am having serious problems with my guitar set up. Here is how everything is hooked up:
220 V power outlet (grounded) into Belkin multi-outlet powerstrip - connected with KPA / 2 wegdes / Crate Powerblock / laptop adapter
The KPA is hooked up to the inputs of a Line6 UX2 - outputs to wegdes. UX2 is connected with laptop via USB.
KPA monitor out was connected with a Crate Powerblock
Now the story: Before the setup above the power came from a Furman Power Factory Pro and then into the devices. 3 days ago I came into the room and I noticed a smell of burning. Next I found out that the power cable to the Furman Power Factor was burnt and the power was shut down. While I tried another cable I saw that it overheated too and the Furman said good bye to me with some nice clouds of smoke. Before I tried the Furman with no other devices connected and it worked so far. But with other devices connected it just started sizzling and I also got an electric shock by touching the metal chassis. It felt like real 220 V (not a creeping current). Maybe the big capacitor was blown? I don't know. I opened it but I couldn't see any burn marks.
This is part one of the story. Now part two: Today I connected as descibed at the top. Because the hum while playing was much more than normaly I tried to hook up everything again. I thought maybe it has to do with the order I plug into the power sockets. Whatever - no idea and no change. Than I remembered the groundlift at the back of the KPA. I switched the one for the monitor out and it blew the fuse of the Belkin. I detached all the devices and switched on the Belkin again. Then a connected the power cable to the Crate Powerblock and it started sizzling and smelling. After trying another cable on another power outlet it did the same so I can conclude that it also died.
I have to say that I am living in Thailand. Maybe it is important to mention. Any idea what causes the problems? Maybe it is just accidental that two devices broke down? Why did it happened while I switched the ground lift?
I would be glad if somebody has some hints. Thanks.