Altec Lansing Cone 405A User's Manual
Contents
1. The loudspeaker shall be Altec Lansing Model 405A LITHO IN U S A CP 48 5K AL 1716 Specifications and components subject to change without notice Overall performance will be maintained or improved2. at 90 on 41 diameter circle 200 dia holes Distribution 90 Weight 2 Ibs Magnet Type Indox V Structure weight 1 Ibs equivalent to EIA rating of 45 dB at 30 feet from 1 milliwatt Service ARCHITECTS AND ENGINEER SPECIFICATIONS The speaker shall be 43 square and shall have a sensitivity of 92 dB SPL at 4 ft from 1 Watt measured on axis The loudspeaker shall have a nominal impedance of 8 Ohms and a power rating of not less than 10 Watts with the frequency response uniform over the range of 60 to 15 000 Hz Free air resonance shall not be higher than 70 Hz The voice coil shall have a diameter of 1 and shall operate in a magnetic field of at least 10 250 gauss derived from a magnet of Indox V having a weight of 13 Ibs The speaker terminals shall be of the solder lug type The speaker shall weight 2 Ibs and Sound Contractors and Distributors This will assure you shall be able to perform efficiently in a volume as low as 0 1 cubic feet It shall have a solid welded construction and water resistant cone to prevent distortion in high humidity areas We recommend that you obtain your Altec products from factory traincd authorized Altec of proper installation a continuing source of knowledgeable advi g 2 3 S v 3 S ia a gt R x fad 3 we 3 gt a R 3 Any loudspeaker not meeting these requirements shall not be acceptable under this specification
3. 405A Dia Cone Loudspeaker 2 1 8 4 3 8 E Features 10 Watts Rating 90 Distribution Angle 60 15 000 Hz Response 4 Speaker Water Resistant Cone Thin Profile for Shallow Mounting High Sensitivity and Efficiency with Index V Magnet Front or Rear Mounting EIA Standard Mounting for Square Shaped Speakers Low Cost Smooth Frequency Response Ideal for Multiple Installations Distortion Free Under High Humidity l l i l l l l HIGH QUALITY PA AND BACKGROUND MUSIC SYSTEM SPEAKERS IDEAL FOR LOW LEVEL INSTITUTIONAL USES BUSES CRUISERS AIRPORT SOUND SYSTEMS COMMERCIAL AND PRIVATE AIRCRAFT CHURCH PEWS NARROW FACIA BOARD PEAK PERFORMANCE IN A LIMITED MOUNTING SPACE The Altec 405A Speaker is an extremely shallow very compact 4 speaker that provides true high fidelity reproduction Using an Indox V magnet with a flux density of 10 250 gauss the damped high compliance cone pro vides low frequency reproduction and smooth extended frequency response equal to most larger speakers The compact size of the 405A Speaker makes it ideal for public address systems in airports buses ships aircraft church pews and any installation that has need for a low level distribution system for wired music program distribution and paging systems Very smooth dis tribution is provided over a wide angle of 90 without high fre
4. quency loss The wide angle of distribution plus the small size of the unit allows greater separation between speakers with a substantial savings in speakers required Clear intelligible speech and good music reproduction is assured because of the extended 60 to 15 000 Hz range Made of heavy grade steel the entire 405A unit is designed for continuous trouble free service The small size of the speaker 4 square by 2 deep make it possible to either front mount or rear mount the speaker in wall par titions or ceilings and into volumes as low as 0 1 cubic feet The solid welded construction and water resistant cone of the 405A prevents distortion in areas of high humidity In line with other Altec speakers the famed experience and engineering know how has been built into the 405A Speaker to make it the highest quality 4 loudspeaker available 405A y ALTEL A LANSINGG 1515 S Manchester Ave Anaheim Calif 92803 A Division of GITY Ling Altec Inc New York ALTEC 405A SPECIFICATIONS Power 10 Watts music power Flux 10 250 gauss Frequency Response 60 15 000 Hz Terminals Solder lug type Pressure Sensitivity 92 dB SPL at 4 ft from Size 4 x 4 square x 2 1 Watt deep E LA Sensitivity 45 dB Mounting Data Baffle opening 3 diameter Rear mounted Impedance 8 Ohms 4 front mounted Cone Resonance 95 Hz Mounting bolt centers 4 equally spaced holes Voice Coil Diameter 1
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