Background The V5i was sent to me by Charles at Burson Audio.  I was contacted due to my participation on the Little Bear B4 thread located here: http://www.head-fi.org/t/626237/portable-tube-amp-from-china. I was asked if I would be willing to write a review and provide my honest feedback which is what I intend to do here.  I have told Charles that I am reviewing this item with the understanding that it is still Burson Audio's property and can be returned at any time.  I'm extremely thankful to Burson for letting me participate in this process.  I...