While I haven't done a spectrum analysis, I don't need to; it is simple 'white noise', which has an increasing amplitude as frequency increases, therefore it is heard as coming more from the tweeter, horn or not. Having an efficient speaker is like putting a magnifying glass on the noise coming out of your system. By the way, my woofers are horns too.

[This message has been edited by soundhound (edited November 25, 2002).]