The Chime microphone shall have a unique shape with high qualities condenser unidirectional cardioid microphone element. Frequency response shall be 50 Hz to 18 kHz. Rated impedance shall be 600Ω, balanced, and rated sensitivity shall be –41 dB +/-3 dB (1 kHz 0 dB=1 V/Pa). There are two adjustment points shall provide more flexible microphone positioning angles. A windscreen and 7.5 metre microphone cable with stereo phone jack shall be provided as an accessory. The microphone shall be come with 4 tones pre and post announcement, with adjustable chime well-suited for paging applications. The chime microphone shall come with a firm base stand. The microphone output shall have a balanced XLR-3-32, RJ45 and chime volume and a selector switch. The power source, contact and signal shared in RJ45 connector via cat 5/6 cable. It allows to choose power source from optional AC power adapter which supplied 9V – 24VDC or 4 x “AA” alkaline batteries. Operating temperature shall be 0° C to +40° C (32° F to 104° F). Stand is ABS resin black and shaft finish shall be copper alloy, with black paint. Dimensions shall be 110mm x 145mm x 532 mm, and weight shall be 558 g (without battery).
The Chime Microphone shall be TOA model EC-380-AS.
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