Quote Originally Posted by ematthews View Post
It's the blending of the sub and speaker.
My experience is somewhat limited, because I pretty much stopped experimenting when I got the blend I wanted. Because I just wanted to listen and not continue to frick with things.

But what I found was that servo subs are considerably easier to integrate with separates like the Sierra-2s than non-servo subs. I think the reason for that might be in the considerably lower distortion one gets from a servo sub over a non-servo sub. That distortion can come across as coloration, and can put out some interestingly strong harmonics up in the range normally handled by the mid/high speakers, which makes both both the sub and the mid driver sound... distorted.

Interestingly it looks like the benefits of a servo system tail off dramatically with an increase in frequency. Which is probably why I've never seen it used in mid range speakers or higher. Not that it hasn't been done, just that I personally haven't seen it.