... points 3.selling to 95 countries Professional loudspeaker, PA Speaker System, Loudspeaker,pro audio, pa speaker, pa systemLoudspeaker, power ... main professional audio products. Our product ranges include also Karaoke system, switching power amplifier, digital power amplifier, mixing console, ... industry. TASSO implements a 5M and 6S QA Optimum System in our management. We have the world top-ranking DAAS, ...