I read about this over on SS.org, then hear about it over here. All I can say, is that sounds like a Peavey Valvstate lol. In more direct terms, it sounds like absolute trash. Judging by the video quality visually, I would have to say it is a combination of just a bad recording and potentially bad mic placement.
If I was working for/with Vader, I would be having that clip IMMEDIATELY removed. That is going to turn so many people off of having any serious interest in it, especially from what I heard of them charging around $2200 for mush box.
Mizati20's words are spot on in my book. How can you as someone who works directly with/for the company, and on top of that, being the designer, be okay with posting a clip that sounds like that? That is an absolute marketing disaster as the only buzz that is going to generate is disappointment and potential buyers going elsewhere.