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Ceiling Speaker ZK72350 Technical Specifications Dimensions On-axis Frequency Response (1W / 1m) Unit: mm VXC4-VA/VXC4-VAW Tile Rail O-Ring Yamaha Corporation Nakazawa-cho 10-1, Naka-ku, Hamamatsu, Japan 430-8650 14 0359-CPR-00405 EN 54-24 0359-CPR-00405 Loudspeaker for voice alarm systems for fire detection and fire alarm systems for buildings Essential characteristics Performance Performance under fire condition Pass Operational reliability Pass Durability of operational reliability: temperature resistance Pass Durability of operational reliability: humidity resistance Pass Durability of operational reliability: corrosion resistance Pass Durability of operational reliability: impact and vibration resistance Pass  C.S.G., PA Development Division © 2014 Yamaha Corporation Published 08/2014 YKCR-A1 Printed in Indonesia