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Cone loudspeaker assemblies deliver superior intelligibility for application in multi-occupancy and expanded space areas including high-rise residences, public buildings, health care and educational facilities, offices, banks, shopping areas, motels/hotels, distribution centers, and transportation terminals. Applied properly, single and dual voice coil models meet life safety code requirements per N.F.P.A. Standard 72 for supervised loudspeakers in fire-protective signaling and communication systems. GENERAL DESCRIPTION Atlas Sound’s UHT and UKT Series are 8" diameter single and dual voice coil loudspeakers equipped with dual (whizzer) cone and 10 oz. ceramic magnet to deliver extended frequency response with high intelligibility and minimal distortion. Cost-effective units are complete with fire-retardant moisture-proof cones, factory-mounted transformer, 6" color-coded leads, and a wide selection of architecturally pleasing baffles. UHT Series loudspeakers have a 1" dia. voice coil, choice of 70.7 or 25-volt transformer, and DC blocking capacitor for line supervision applications. UKT Series loudspeakers are equipped with two 1" dia. voice coils, two transformers (specify 70.7 or 25 volts), and a DC blocking capacitor. To comply with UL requirements, loudspeaker packages must be used with UL-approved enclosures (refer to back page for baffle/ enclosure information and to SL6-1424 “Enclosures for UL Listed Loudspeakers”). SIX LOUDSPEAKER SPECIFICATIONS MODEL SIZE MAGNET FREQUENCY RESPONSE POWER RATING(RMS) IMPEDANCE FLUX DENSITY SENSITIVITY * VOICE COIL DIAMETER DEPTH UHT 8" (203mm) 10 oz. (260 g) 85 Hz - 8 kHz + 5dB 10 Watts 8 Ohms 10,600 Gauss 97dB Peak 94dB Avg. 1" (25mm) 27.8" (73mm)UKT 60 Hz - 8 kHz + 5dB 10 Watts 8 Ohms (each coil) 94dB Peak 91dB Avg. * UL ratings measured per UL Standard 1480 at 1 watt, 10 feet (3dB increment rating): UHT = 81dB; UKT = 78dB. 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 SL6-1181 327 TRANSFORMER SPECIFICATIONS PRIMARY TAPS SECONDARY INSERTION LOSS CORE SIZE DC BLOCKING CAPACITOR 1/2, 1, 2, & 5 Watts 8 Ohms 1.5dB 1.2" x 5.8" (13mm x 16mm) 10 mfd @ 50V (25V Xfmr) 4 mfd @ 150V (70.7V Xfmr) LOUDSPEAKER / TRANSFORMER / BAFFLE / ENCLOSURE INFORMATION MODEL SPEAKER TYPE BAFFLE XFMR VOLTAGE MOUNTS ENCLOSURE** (ORDER SEPARATELY) TYPE COLOR UHT70(25)C-U51-8 Single Voice Coil U51-8 White 70.7V(25V) U95-8, U96-8 *UHT70(25)C-U61-8W U61-8(W) Brushed Aluminum or White U95-8, U96-8 *UHT70(25)C-U62-8 U62-8 White U95-8, U96-8 UHT70(25)C-U161-8 U161-8 White U198-8, USE175-4 *UHT70(25)C-U164-8 U164-8 White U191-78 *UHT70(25)C-U410-8 U410-8 Brushed Aluminum or White Not Required *UHT70(25)C-UG22-8 UG22-8 Off White Matte U95-8, U96-8 *UHT70(25)C-UVP161-R8 UVP161-R8 White U193-8 *UHT70(25)C-UT51-8 UT51-8 White UT95-8 *UHT70(25)C-UT61-8W UT61-8(W) Brushed Aluminum or White UT95-8 *UHT...
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