5.S A-II Effects A - II is a 5.S brand special effector with six-way output processor for audio effects. With Hi-Fi-leveled audio output, A - II is an excellent mid frequency performer, and it integrates fine high-frequency extension and powerful and elastic low-frequency limit to produce perfect and balanced timber, thus enabling 5.S Audio loudspeaker to perform its best. The audio and power filter capacitor of A - II applies imported technologies from Germany. With elaborate material selection and delicate debugging, A - II possesses ultra-high stability and produces precise sound, thus making the best singing effect out of an enclosure in a private entertainment room in KTV clubs.