Introduction: This series is specially designed for stage monitor facilitate optimum of stage performances with 45 ° and 20 ° angle optional. High performance tweeters and woofers with big power and excellent tone. Active cabinets are equipped with H/M/L 3 band equalizer to adjust tone. Amp achieves excellent performance, low distortion, and delicate tone. The protection includes thermal protection, over-current protection, short circuit protection, automatic compression while over load, which ensure the stability of cabinets.