I've heard this several times. Even had people listen to my Two Pis, be knocked out, then when they find out it's got a piezo tweeter they act like it's got some contagious disease. The reality of the speakers is they sound great, and that's all that matters. I just got some old Amperex Bugle Boys (made in Holland) today for my CDP, and I'm getting some fine treble from the system with them- cymbals are outrageous! Some people hear things so often it affects their perception more than reality. Now on the subject of black cats, Buddy Guy and Junior Wells just told me that they can help with the mojo and hoochee coochee factor...that can't be all bad....