We addressed this issue on another thread. There is a batch of bad power supplies. They get damaged in shipping because the casing in too thin and where the transformer is mounted it can seperate from the housing which shorts the transformer.
This has been addressed and the new shipments should have the correct supply in them. Like I said, this was an unfortunate problem, but none of the supplies has taken out any VTB-1's. Once we shipped the replacement supplies to the customers, they were fine. Here is a response from one customers...
Thank you for sending my power supply so quickly. Although I am not an experience recording engineer, I'm just a home studio rookie, I think this is a good pre amp, I love the sound and haven't even gotten around to trying the tube yet. all I have to compare it to are my mackies pres and an art unit, but I really like this thing.
In either case we have addressed this issue, and will continue to make any unit right with a bad supply. This will all go away shortly and while it is an inconvience, I am sure you and every one else will be pleased with your VTB-1. Believe me, we are none too happy about this, but like they say, Shit Happens, but we have been standing behind it as we should.