Yamaha KS-SW100 Keyboard Subwoofer B-Stock - ACTIVE SUBWOOFER FOR 8 "100W KEYBOARD

(This text is machine translated) This compact keyboard subwoofer incorporates a host of advanced, high-performance, Yamaha-exclusive bass technologies, including a Twisted Flare Port and Advanced YST II (Yamaha Active Servo Technology II). This results in a surprisingly clean bass response that really adds so much to your musical experience, whether you're playing or listening. The all-new Twisted Flare Port leverages extensive subwoofer development technology. The flared and delicately curved shape diffuses the vortex of air generated around the edge of the door, creating a regular air flow. This reduces extraneous noise not present in the original input signal and provides crisp and precise low frequency reproduction. From the sounds of special effects in movies to the atmosphere of a live venue, feel the bass that's crisp, taut, and lifelike. Developed exclusively by Yamaha, the Advanced YST II (Yamaha Active Servo Technology II) combines the principles of negative impedance and constant current to dri...