I managed to break one too, I accidentally touched the case of the empeg with the plug while inserting it, the USB cable was already plugged in, so I guess it shorted it out that way.

Results USB hub, PSU and the Empeg were fine, Sunpower PSU was dead, empeg now running off an old Toshiba Laptop PSU I had lying around.
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Mark. [blue]MKI, MKII & MKIIa, all Blue, and all Mine![/blue]