A servo involves a sensor on the controlled device (in our case a small accelerometer on the woofer cone) which measures movement of the cone. With a non-servo system the power amp puts out a voltage according to the input signal. The voltage is applied to the driver, but how the cone moves depends on the driver characteristics, and no driver is perfect. With a servo system, if the driver fails to move exactly in accordance with the input signal the error is measured, and the power amp output is modified to correct it.
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?
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?