Well, update time. I ordered e30/l30 stack from amazon.de / shenzen audio. Got them in december, was using the stack, as preamp to powered monitors and HP, constantly plugged in. Never had any issues with L30 or E30 for that matter. After reading some posts in this thread and beeing confirmed from Topping themselfes i decided to ask for a return of products with refund. I have been granted refund of L30 with reply to keep or rather dispose of the L30. Now i wont sell it for sure, but is there any info on what actually caused the short or whatever happend to some people? Can i fix it DIY style? Since its working as it should - for now-, id like to still use it? If not i guess i will just wait for the new revision or possibly purchase heresy or atom, with insane taxes and shipping. smh.