[Tiptoe]

I recently received my Audio-GD NFB-12 and it seems to randomly shut off. Sometimes it might be on for about 2 minutes before it shuts off, and sometimes it might be on for about 5 hours or not even shut off at all. When it shuts off, it usually turns itself back on after somewhere between 1-10 seconds. I'm wondering what the problem I'm having may be.
 
I've got it connected like this
 
Laptop -> USB cable -> Audio-GD NFB-12-> Power Cord -> Power Bar
and
Sennheiser HD 600 -> Audio-GD NFB-12
 
The settings on the amp are:
Output: Headphones
Gain: High
Input : USB
 
Thanks to anyone who replies.

 

[Tiptoe]

bump

 

[roughington]

Did you ever find a resolution for this?