jj@rabbit.UUCP (08/03/83)
What the gentleman from rochester has done, by putting ONE tweeter out of phase, is introduce a CHANNEL DEPENDANT phase shift. What the DAD does is introduce a CHANNEL INDEPENDANT phase shift, thus introducing no phase difference between channels. Furthermore, when the gentleman's tweeter was out of phase, the speaker with the improperly phased tweeter (which could have been either speaker) had a large zero in its frequency response due to the improperly phased speaker. The effects of a consistent phase shift in both channels is not easily predicted, which is the reason that I didn't try. The effects are dependant on many things, such as the ringing frequency, magnitude, etc, and cannot in general be predicted. They STILL do not have any relationship whatsoever to the effect of a channel-dependant phase shift. Good Grief again!