I have a geeky question for Bryston's chief engineer in charge of this project, Stuart Taylor. Perhaps Mr. Tanner would be so kind as to relay this question to him; is the choice of op-amp utilized the single most critical aspect of the BHA-1's ultimate sound quality and how would the other factors be ranked either ahead of or behind the choice of op amp and in what order? In other words, can you rank from most important to least important the various parts and design choices you made when designing this head amp? Is the op amp really completely proprietary and if not, are you at liberty to disclose what changes are made to someone else's chip? And lastly, are you certain that all the input and output flexibility of the BHA-1 creates no compromises whatsoever in overall SQ and if so, how are you certain? Sorry in advance. If you don't care to answer all of these, would you please answer my first question-that one is the most important one to me.