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MULTI-PURPOSE SOUND SYSTEM Section 16780 15-1207 i. 5' Announcer's microphone cable ii. 50' Interview cables — intended for use with wall jack. (Provide 2) d. Microphone stands (Provide 2) 2.6 ADA ASSISTIVE LISTENING SYSTEM A. ALS (Assistive Listening System) is a requirement signed into law on July 26th 1990 by the ADA (American Disabilities Act). It is summarized by: "No person shall be discriminated against on the basis of disability in the full and equal enjoyment of the goods, services, privileges, advantages and accommodations of any place of public accommodation." The ADA prohibits discrimination on the basis of disability in employment, programs, and services provided by state and local governments, goods and services provided by private companies, and in commercial facilities. This Act includes provisions to accommodate hard of hearing people, including incorporating Assistive Listening Systems in new building construction, in alterations or renovations to buildings and facilities, and when improving access to existing facilities of private companies providing goods or services to the public. All new facilities require full 4% accessibility. By law, the A/V contractor shall be required to provide an ALS transmitter capable of broadcast audio to all areas in cafeteria. It shall be the responsibility of the owner to provide an accurate account of the number of receivers required to full fill the minimum 4% ADA requirement. The stationary FM transmitter shall be capable of broadcasting 57 channels. The transmitter shall have a signal to noise ratio in excess of 80 dB. The output power shall be adjustable to quarter, half or full. Channel tuning shall be capable of being locked. The device shall broadcast on both wide and narrow band channels. The device shall have an audio frequency of 50 — 10.0 kHz, + 3 dB @ 216 MHz. The transmitter shall have two mixing audio inputs, and the following controls: a. Input Level b. Process Control c. Adjustable low pass shelving. The transmitter shall be installed with all accessories including a rack mount kit and the remote antenna designed to meet the selected broadcast range. Acceptable manufacturer: Listen Technologies LT -800-072 transmitter or equal. 2. The FM Receiver shall be capable of receiving 17 wide band channels and have a Signal to Noise of 80 dB or greater. The receiver shall be capable of seeking channels. This device shall have squelch. The device shall have an audio frequency response of 50 —15.0 KHz + 3 dB @ 72 MHz. The device shall incorporate a stereo headset jack that allows the user to plug in either a mono or stereo headset for normal audio listening. The device shall incorporate an LCD display that indicates channel, battery level, RF signal strength and channel lock. The receiver shall incorporate automatic battery charging circuitry for recharging NIMH batteries. The receivers shall be stored in an eight unit (charging) carrying case and include all accessories including ear speakers, and rechargeable NiMH batteries. Acceptable manufacturer: Listen Technologies LR -300 or equal. 15