What's wrong with asking that?
I have to test everything blind if the differences are subtle because it's the only way of knowing what's what. If possible I try and do an A/B test switching back and forward between things quickly.
Over the years I've found that if you go out and spend some coin on a new piece of gear, bring it home and plug it in and have a listen while you're excited and looking at it, it seems to sound better... I'm not trying to be a smartarse, obviously there is a lot of negativity surrounding this product in this thread, but nobody is willing to spend the money on one to do a proper listening test. If you're going to buy one, what's wrong with asking you to test it out properly and let us know how it goes? If you refuse to do a blind test on it, that kinda says you have no confidence in it. So why buy it.