I had someone telling me when I first started taping that he preferred these to the 4071's, but he was trying to sell them, so that might be some biased info. I'd say that I agree with MattD though- the 4061's in my experience (so far only with AD-20) are very crisp, and any more of a high end boost might be too crisp, IMO... but YMMV
FWIW, I really, really like the 4061's... found cheap on ebay, and can be powered by a sound pro's bb.