The JBL Ki300 series is two-way passive full range loudspeaker designed for karaoke box where seeks for best sonic performance. The Ki300 series loudspeakers consist of two models: Ki310 and Ki312 in its portfolio. The Ki300 is upgraded from the classical KS300 series with performance improvements. It utilizes two each newly designed 1" aluminum dome neodymium tweeters integrated with optimized multi-grid waveguide capable of reproducing rich clear sound out to 20 kHz. The woofers maintain the same rubber surround, but incorporate a newly formulated paper cone. The newly designed cone is lighter but more rugged than with previous designs, greatly improving sensitivity and durability. The Ki300 Series is the ideal Karaoke loudspeaker system to provide transparent and natural treble, warm and smooth mid-frequency, and powerful bass for clear and elastic drum sounds.