Conference Room Sound System with Headworn Conference Room Microphone, AA35 Mixer Amplifier, Audio Technica Receiver and Body Pack, and 1 SD4 Omni Directional Ceiling Tile Speaker. Entire System Installs in Minutes. The CRAT3000SD4 Conference Room Audio System featuring an omni directional drop ceiling tile speaker cost-effectively solves the demand for high technology Conference Room sound systems with quick and easy installation. The entire system installs in minutes in standard drop ceilings. The SD4 omni-directional ceiling tile speaker takes ceiling speaker performance to a new level. The SuperDispersion SD Ceiling Tile Speaker produce powerful sound, high performance, and distinctive styling and install in only minutes. The SD4 is an innovative speaker concept with a pyramid design that fits into standard 2×2 or 2×4 ceiling tile grids or suspended by cables, providing an amazing 360 degrees of hemispheric sound. The Atlas Sound AA35, a 3 input channel mixer amplifie (more…)