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Compact assembly adds low-level sound into environment to obscure ambient noise, achieving conversational privacy in designated areas. Easy-to-install system may be used in general application to increase privacy and/or productivity in individual cubical and work areas by “blocking out” surrounding conversation. It is also used in individual office areas, common waiting areas, and professional offices where confidential conversations occur. The equalized masking sound lowers intelligibility and “masks” disruptive outside sounds. GENERAL DESCRIPTION The Masker AM1100 Series is an easy-to-install, high-performance masking system that includes a built-in power supply, digital pink-noise generator, 2-watt amplifier, 4" loudspeaker and selection of optional installation and performance enhancements. Compact assembly is housed within a 6" metal cube enclosure with one point suspension to allow 360° positioning in ceiling plenums. Easy-to-operate control panel features on/off power switch, screwdriver-adjust master SPL level control, knob adjust attenuator (11.2 dB per step), and two screwdriver-adjust low-pass filters. For installation convenience, the sound out-put curve of The Masker is pre-set at the factory to meet most masking applications (see Fig. 1). Custom curves to satisfy individual customer specifications are also available upon special request. The 117VAC versions are standard with transformer, IC electronic regulator, replaceable fuse and grounded plug or conduit connector for termination. The 16VAC version is equipped with IC electronic regulator, re-settable circuit breaker and 8" leads for connection to external power transformer. Models are finished in black epoxy and configured as listed in the chart below. Option abbreviations are as follows: (L) AC line cord with molded plug and (H) 4' suspension chain with “S” hook. SPECIFICATIONS POWER PINK-NOISE AMPLIFIER POWER SUPPLY LOUDSPEAKER FREQUENCY MODEL REQUIREMENTS GENERATOR SECTION SECTION RESPONSE WEIGHT AM1100-LH 117VAC, 60 Hz IC Type IC Type, IC Electronic Reg., 4" (102mm) 7 Watts Digital Operation 2 Watts Output Xfmr, Replaceable Fuse 10 oz. Ceramic 200 Hz - 4 kHz 5.4 lbs (2.45)AM1100-16V 16VAC, 60 Hz IC Electronic Reg., @ 350 mA Circuit Breaker Magnet NINE MODEL DESCRIPTION AM1100-LH 117 VAC Masker with line cord and 4 foot chain AM1100-16VH 16 VAC Masker with chain (Power Supply not included *) • The generic UL listed 16VAC power supply required for the AM1100-16VH is available from: Caldrad Electronics, 819 N. Highland Ave. Los Angelas, CA 90038, Voice: (323) 465-2131 Fax: (323) 465-3504 Order Part Number: 45-760 Specifications subject to change without notice 1601 JACK MCKAY BLVD. / ENNIS, TEXAS 75119 U.S.A. / TELEPHONE: (800) 876-3333 / FAX (800) 765-3435 © 2001 Atlas Sound Printed in U.S.A. 000501 SL9-1218 371 ARCHITECT & ENGINEER SPECIFICATIONS The self-contained audio masking system shall be Atlas Sound Series AM1100 Model ________ or approved equal. The unit shall be completely self-contained in a 6" metal cube enclosure and have one point suspension allowing for a full 360° positioning of loudspeaker system. Assemblies shall include a 4" diameter loudspeaker with 10 oz. ceramic magnet. Frequency response shall be 200-4,000 Hz. The pink-noise generator shall be an IC type with digital operation. The amplifier shall be an IC type with 2 watt output. The sound output curve shall be preset at the factory. Masking assembly shall have a power requirement of _______ (117VAC, 60 Hz or 16VAC, 60 Hz). Models for 117VAC operation shall include transformer, IC electronic regulator, replaceable fuse and line cord for termination. The 16VAC Model shall be equipped with IC electronic regulator, re-settable circuit breaker and 8" leads for connection to external power transformer. Control panel shall consist of an on/off power switch, knob adjust attenuator (11.2 dB per step), screwdriver-adjust master volume control, and two screwdriver-adjust low-pass filters for sound out-put wave shaping. ACOUSTICAL RESPONSE IN 1/3 OCTAVES Figure 1 Figure 2 Figure 3 Figure 4 360° Positioning Capability Compact Size Mounts Anywhere User-Friendly Controls FREQUENCY Test run at 90dB broadband SPL, microphone 6" from speaker. Low pass filters adjusted for minimum effect Standard factory setting Low pass filters adjusted for maximum effect Specifications subject to change without notice 1601 JACK MCKAY BLVD. / ENNIS, TEXAS 75119 U.S.A. / TELEPHONE: (800) 876-3333 / FAX (800) 765-3435 © 2001 Atlas Sound LP Printed in U.S.A. 000501 SL9-1218 ...