Servo controlled speakers and subwoofers


What does a servo control do for a speaker and subwoofer?

Given the same sized woofer, is a servo controlled subwoofer inherently better than one that's not servo controlled?

The Genesis 4 chassis speaker systems uses a servo control. Why a servo instead of letting the woofer columns be powered by a regular power amp?
128x128mitch4t
sirspeedy70680@earthlink.net
Maybe 57 is "well under 60", but if I figure it correctly this is only 0.45 dB down! It's closer than you think.
Eldartford, you can also see it as LESS than 3db older than 25... not that old after all:)
Happy Bday Sirspeedy!