Altec Lansing 401C User's Manual
Contents
1. Features Compact Design High Efficiency High Power Capacity Dust Protected Wide Distribution Angle Ceramic Magnet Structure S ALTEL A LANSING A quality company of LTV Ling Altec Inc 401C Loudspeaker DESCRIPTION The ALTEC 401C Loudspeaker is an advanced version of the superior ALTEC 401B Loudspeaker designed specifically for use in low level music distribution and paging systems Its compact design and shallow depth greatly simplify installation problems The excellent high frequency response and wide range makes the loudspeaker ideally suitable where excellent intelligibility is required The high efficiency of the magnetic structure and wide distribu tion angle of 90 at 3000 Hz reduce the number of speakers as well as the amplifier power needed for good coverage Addi tional features of the design are the pre drilled mounting holes for 70 volt distribution transformers high power capacity and unusually wide frequency range With these many features which are not found in any other speaker of this type the 401C Loud speaker will prove superior in all low level music distribution systems for quality economy and reliability 1515 S Manchester Ave Anaheim Calif 92803 New York SPECIFICATIONS Power 15 watts Frequency Response 60 to 12 000 Hz Distribution 90 at 3000 Hz Sensitivity 97 dB Sound Pressure Level at 4 ft from 1 0 watt Impedance 8 0 ohms Voice Coil Diameter 1 0 Diame2. source o and quick warranty protection C ALTE 400 eel
3. ter 84 Magnet Type Indox V Magnet Structure Weight 134 Ib Flux 10 250 Gauss Mounting Hole Diameter 71 Depth 3y Weight 2 Ib Equivalent to E I A rating 50 dB at 30 feet from 1 0 milliwatt ARCHITECTS AND ENGINEERS SPECIFICATIONS The loudspeaker shall be 814 in diameter and shall have a minimum sensitivity of 97 dB SPL at 4 0 feet from 1 0 watt measured on axis The speaker shall have a continuous power rating of at least 15 watts The voice coil shall operate in a magnetic field of at least 10 250 gauss derived from a ceramic magnet weighing no less than 10 ounces The frequency response shall be uniform over the range from 60 to 12 000 Hz and shall be free of peaks The speaker shall have a broad angle of coverage to 12 000 Hz Free air resonance shall not exceed 97 Hz The speaker shall be sealed against dirt and magnetic dust The total depth of the speaker shall not exceed 314 The speaker shall be the ALTEC Lansing Model 401C LITHO IN USA CP 670 5K AL 1763 Specifications and components subject to change without notice Overall performance will be maintained or improved ssure you f knowledgeable advice service 3 g S 5 gt 2 S 2 S 3s S na A E S a 2 3 lt 8 gt S 8 gt a Se X Y S g 5 authorized Altec Sound Contractors and Distributors This will a of proper installation a continuing
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