De’ Tjolomadoe entrusted CELTO Acoustique from FRANCE for the Multipurpose Sound Systems Installations. CELTO Acoustique Indonesia by Mr Ferry Soebiantoro of Global Pro Audio assisted the Sound Installations to ensure the Sound Quality and Reliability with a great performance. Upon the first Listening process of Installations, everyone are very surprised with the Sound quality of IWAC deliveries. High performance SPL with Sound Quality Level are very tremendously fills up the room. With almost Flat equalizing…