Public Address

Public address system (PA system) is an electronic sound amplification and distribution system with a microphone, amplifier and loudspeakers, used to allow a person to address a large public, for example for announcements of movements at large and noisy air and rail terminals.


TOA Corporation is dedicated to the development, manufacturing and distribution of premier audio and security products. TOA Corporation was founded in Kobe, Japan over 70 years ago. All of TOA’s products bear its name. TOA operates in over 100 countries worldwide, with more than 1500 employees and sales greater than $300 million dollars. TOA manufacturing facilities are found in nearly every major market area. These facilities have a reputation for precision design and fabrication, resulting in a proven track record of TOA product reliability. 

TOA’s extensive line of audio products includes amplifiers, speakers, mixers, wireless microphone systems, digital processors and network audio.


For over 65 years established at the very beginning by the founder, James B. Lansing, they develop everything from the ground up. This not only ensures success in the marketplace, it guarantees there efforts exceed the needs and expectations of audio professionals throughout the world. Never straying from this exacting formula, There journey has produced a prolific list of audio achievements, groundbreaking technologies, revolutionary advances in the art and science of professional audio, many patents, and many awards. It’s a journey that is legendary worldwide and has positioned JBL as the world leader in professional audio. Not just as a brand, but as a company known for consistently blending creativity and science as a manifestation of our passion for sound and our commitment to those who create it. Purposeful invention is no accident. It requires leadership, persistence and an unfaltering commitment to JBL’s ultimate design goal: create the best tools for better, more accurate sound.


ITC Audio

PA expert of 20 years experience. Highest recognization of quality and service by Beijing Olympic Games and 2010 Asia Olympic Games. Innovator and leader of Class-D and IP network audio system. R& D Teams for Anolog system, Class-D amplifier, IP system, EVAC system, conference system, professional sound system. More than 10 versatile systems of highest reliability from analog to digital, from PA to VA. Digital system solution provider specialist to School, Hotel, Stadium, Transportation Center, Shopping Mall, Bank, Hospital, Airport and Intelligent Buildings