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SPL @ 1M (Transformer Limited @ 60W) 100 Watts 95dB 113dB Nominal Impedance 8ohm Crossover Frequency 2750Hz ***Dispersion Angle LF TRANSDUCER 90 Degrees Basket Material Cast Aluminum Cone Material Treated Paper Surround Material & Dampening Treated Accordian Cloth Edge Voice Coil Diameter 1.5" (38mm) Magnet Weight 30 oz. (.85kg) HF TRANSDUCER Diaphragm Material Treated Laminated Silk Voice Coil Diameter 1" (25mm) Voice Coil Former Material Aluminum Voice Coil Material Copper Magnet Weight 10 oz. (283g) Top Plate Thickness 0.125" (3mm) Transformer Frequency Response: 33Hz to 21kHz (±2dB) Primary Taps @ 70.7V: 60,30,15,7.5 Maximum Insertion Loss 1dB Diameter & Depth 12.875" (327mm) Dia. & 4.1875" (106mm) Deep Mounting Dimensions 11.625" (295mm) Bolt Circle Net Weight (Less Transformer) 10.5 lbs (4.76kg) Warranty 5 Years Recommended Enclosure For Maximum Low Frequency Performance**** Atlas Sound Q4412 (2 Ft3, .054m3) * Rated power based on EIA specification - ** Averaged from 500 Hz to 2.5 kHz *** Dispersion angle = 6dB down point at 2 kHz **** When used in full space anechoic with the Atlas Sound Q4412 two cu. ft. enclosure the C12BT60 operates within a frequency response range of 68 Hz - 20 kHz (±3dB). Sensitivity is 95dB (1W/1M). Dispersion angle is 90° @ 2kHz. FEATURES • Professional quality sound reproduction at a competitive price • Includes factory-installed line-matching transformer • Ideal for multi-purpose commercial, industrial and institutional use • Mounts a wide selection of Atlas Sound baffles • Coaxial loudspeaker with 12" diameter low frequency and 1" diameter high frequency reproducer APPLICATIONS Enhance audio quality and listener appreciation of engineered sound systems with the superior sound reproduction and power handling capacity of the Atlas Sound Model C12BT60. Professional quality 12" coaxial loudspeaker with factory installed 60-watt line-matching transformer is ideal for application in restaurants, night clubs, lounges, theaters, airports, waiting rooms, shopping malls, houses of worship or any commercial, industrial and institutional application, with high ceilings. GENERAL DESCRIPTION Atlas Sound Model C12BT60 is a professional quality coaxial loudspeaker for use where full range music and voice reproduction are desired. Model C12BT60 combines a 12" diameter low frequency reproducer and a 1" diameter high frequency, post-mounted reproducer. The unit features a curvelinear, treated paper cone for lower harmonic distortion and a built-in crossover network for determining proper frequency selection between the two reproducers. Both the low frequency reproducer and the tweeter feature permanently aligned voice coils (1.5" and 1" diameter, respectively) to assure distortion free performance. The copper voice coils have an anodized aluminum former. The competitively priced unit assures smooth frequency response in a high power handling mode. For best results, enclosures with a volume of 2 cu. ft. or greater (including Atlas Sound Models Q4412 or Q4612) are recommended. Additional Q Series enclosure models with a volume up to 6 cu. ft. will satisfy requirements with different low frequency emphasis. The loudspeaker will also provide outstanding performance when front or rear mounted in vented or sealed enclosures. A factory installed 60 watt line transformer is included with the package, however, the transformer can be easily bypassed for 8 ohm applications. Amplifier output wiring connections to the loudspeaker are "pig tail" leads loudspeaker weight is 10.5 lbs (4.76kg). ARCHITECT & ENGINEER SPECIFICATIONS Frequency response range shall be 68Hz to 15kHz, ±3dB in full space anechoic environment when mounted in a 2 cu. ft. enclosure. Sensitivity shall be 95dB at 1 watt, 1 meter. Voice coil impedance shall be 8 ohm (nominal). Low frequency voice coil diameter shall be 11.2" (38mm). High frequency voice coil diameter shall be 1" (25mm). The maximum depth of the loudspeaker shall not exceed 4.1875" (106mm). Basket shall be made of cast metal. Loudspeaker shall be capable of front and rear mounting in sealed or vented enclosures and weigh 10.5 lbs (4.76kg). The low frequency reproducer cone shall be a full 12" (305mm) in diameter and the high frequency reproducer diaphragm shall be 1" (25mm) in diameter. The woofer shall have a 30oz. (.85kg) ceramic magnet. The tweeter shall have a 10 oz. (.283kg) ceramic magnet. The two reproducer sections shall be coupled through a built-in crossover network. The crossover frequency shall be at 2750Hz. Conical dispersion shall be 90 degrees at 2kHz. Unit shall include factory-installed line transformer. Transformer primary voltage shall be 70.7V or 100V with a frequency response range of 33Hz to 21kHz (±2dB) and power taps at 7.5, 15, 30 & 60 watts. Insertion loss shall not exceed 1dB. One Specifications subject to change without notice 1601 JACK MCKAY BLVD. / ENNIS, TEXAS 75119 U.S.A. TELEPHONE: (800) 876-3333 / FAX (800) 765-3435 AtlasSound.com © 2002 A...