For those who were not aware: Western brand products are at a premium due to import duties charged by the chinese government. It doesn't matter if the equipment was made in China or not. If It's for the western market it gets taxed.
@klinkny: They should be able to sort you out there. They have a booth with parts as well (tubes, caps, transformers, etc), so I don't see why not. However, I do recommend you call them, or pay them a visit before bringing in your unit, just to check if they actually do do repairs (might save you the hassle of carrying a 20kg unit across town).
Also, I would recommend you first do some more troubleshooting. E.g. do any of the tubes light up when you switch it on? Does the transformer get warm after a while? Are there any power indicators that may indicate there is power on the unit? Have you tried other speakers? Have you tried other source inputs?
Ofcourse you may have checked all this, I'm just trying to determine if the fix is potentially a DIY job or does need soem more investigating. E.g. could be a loose contact at the power switch, or at the speaker exits, which are easy fixes. If we talk about blown caps or resistors, it may be more difficult (although sometimes, if they are blackened, that might be an indication...) You can also go to
www.diyaudio.com to seek some expert advice. They seem to know a lot about the chinese amps.