The Yamaha KS-SW100 subwoofer incorporates a number of advanced, high-performance technologies, including Twisted Flare Port and Advanced YST II (Yamaha Active Servo Technology II).
The twisted-flare port takes advantage of extensive experience in subwoofer design. The flared, slightly sinuous shape disperses the air vortex created around the edge of the speaker, creating a smooth airflow. This reduces extraneous noise not present in the original input signal and delivers clear, accurate low frequency reproduction.
Yamaha's Advanced YST II (Yamaha Active Servo Technology II) combines the negative impedance and constant current principles to drive the speaker cone with even better control than the previous version. The use of advanced negative impedance conversion (ANIC) circuits dynamically optimizes this system.
The KS-SW100 is compatible with the following keyboards, among others: PSR-EW410 / PSR-S670 / PSR-SX600 / PSR-SX700 / PSR-SX900 / PSR-A3000 / as well as older PSR-S models.