Yamaha's newly developed Advanced YST II (Yamaha Active Servo Technology II) builds on the original Advanced YST concept by combining negative-impedance and constant current principles to drive the speaker cone with even tighter control.
Using Advanced Negative Impedance Converter (ANIC) circuits, this system dynamically optimizes effective speaker impedance to maintain excellent linearity. This means more stable and accurate low range response, not to mention higher sound pressure levels, for more natural and energetic bass reproduction. |