Altec Lansing M100T User's Manual
Contents
1. FIGURE 2 Beamwidth vs Frequency FREQUENCY IN HERTZ FIGURE 3 Directivity vs Frequency Whole Space anechoic prill a gp G X3GNI ALIAILOSZHIO ANS 4 SEY vi 150 1 a 180 Horizontal 8 000 Hz Vertical FIGURE 4 Polar Response INSTALLATION NOTES On the back of the M100 two 4 20 threaded inserts These are intended to be used with mounting systems which have 2 3 8 mounting centers such as the Omni mount Systems Series 25 U type bracket the M100MB is also available This will allow the M100 to be mounted on walls or ceilings A microphone stand adaptor is also included Complete mounting instruc tions are include with the MIOOMB Care should be taken to ensure that the chosen fixing point is strong enough to support the M100 Care should also be taken to ensure that the M100 is not exposed to direct precipi tation If the speaker system is not used with one FIGURE 1 Wall Mounting of the mounting brackets such as on a bookshelf then the rubber feet that are included with the M100 should be attached to the speaker If the speaker is placed on the bottom side then a rubber foot should be attached to each of the two rear comers only This will compen sate for the 3 draft that is molded into the cabinet and allows the baffle to sit perpendicular to the surface that the speaker is placed on If the2. has a 4 ohm impedance and the M100T includes an internal 70 7 100 volt transformer for use in distributed loudspeaker systems Their high power handling also makes them suitable for nearfield monitoring in live performance situations Threaded inserts in the cabinet in combination with the optional mounting hardware provide a flexible mounting system for virtually any application The low frequency section is a 54 direct radiating woofer with a polypropylene cone installed in an optimally vented high impact polystyrene enclosure This combination produces extended bass response with relatively high efficiency for a small enclosure The use of plastic materials for the enclosure and cone allow the loudspeaker system to be used in high humidity environments The high fre quency section is a 1 direct radiating soft dome tweet er The tweeter is ferro fluid cooled and uses flexible tinsel lead wires to prevent thermal or mechanical failure These features in addition to the large magnetic system make this the most rugged tweeter ever used in a system this size To prevent loudspeaker failure from being accidently over driven independent woofer and tweeter protection circuits have been incorporated These circuits will automatically reduce the power being delivered to the drivers if their threshold is exceeded greatly reducing the possibility of driver failure Both drivers feature low flux leakage designs enabling the speaker to be used in clo
3. speaker is to be placed on its side then a rubber foot should be attached to each of the four corners The nameplate that is at tached to the grille may be rotated depending on which mounting orientation is used FIGURE 2 Stand Mounting ARCHITECT S and ENGINEER S SPECIFICATION The loudspeaker shall be a two way system con sisting of a 13 cm 5 inch low frequency loud speaker 2 5 cm 1 inch high frequency loud speaker 00 only 30 watt line transformer and frequency dividing network installed in a vented enclosure M100T only The line transform er shall have power taps for 30 watts 15 watts 7 5 watts 3 7 watts 1 9 watts and 0 94 watts The power taps shall be switch selectable The divid ing network crossover frequency shall be 3 500 Hz The dividing network shall include a protection cir cuit for the high frequency loudspeaker The loudspeaker system shall meet the following performance criteria Power handling M100 only 160 watts M100T only 30 watts Frequency response 3 dB from 85 Hz to 20 kHz Pressure sensitivity 84 dB SPL at one watt 100 Hz to 10 kHz measured at a distance of one meter on axis The enclosure shall be molded of high impact polysty rene structural foam The unit shall be 24 9 cm 9 8 inch high 17 8 cm 7 0 inch wide 16 8 cm 6 6 inch deep The loudspeaker shall be the Altec Lansing Maestro series M100 100T ALTEC LANSING P O BOX 26105 OKLAHOM
4. A CITY OK 73126 0105 U S A 405 324 5311 or FAX 405 324 8981 1991 ALTEC LANSING CORPORATION PRINTED IN U S A 5 91 Revision 1 42 02 037525 42 07 037525 531703
5. LANSING ALTEC LANSING M100 M100T Weather Resistant Compact Loudspeaker System KEY FEATURES Compact Size Versatile Mounting Provisions Low Flux Leakage Magnet Design Extended Bass Response 70 100 Volt Transformer Version Available PRIMARY SPECIFICATIONS 85 20 000 Hz 3 dB 1 Meter on Axis Swept 1 3 Octave Anechoic Environment Frequency Response Usable Low Frequency Limit 65 Hz 10 dB down point Long Term Average Power Handling Capacity per EIA Standard RS 426A M100 160 watts MI100T I to 30 watts in 3 dB steps Sound Pressure Level 85 dB at 1 Meter 1 Watt Input Anechoic Environ ment Band Limited Pink Noise Signal 300 to 2 000 Hz 100 25 Horiz and Vert 1 500 10 000 Hz Included by 6 dB Down Points on Polar Responses Indicated One Third Octave Bands of Pink Noise Median 9 5 13 4 5 4 Q 1 500 20 000 Hz Directivity Index Median 9 8 dB 3 8 Di 3 6 dB 2 000 20 000 Hz Dispersion Angle Directivity Factor DESCRIPTION The Altec Lansing M100 and M100T are extremely compact high performance monitor loudspeaker sys tems They are ideally suited for indoor or outdoor applications requiring high quality sound reproduction As a near field monitor in control rooms or broadcast studios or as a foreground or background loudspeaker in restaurants and clubs they are the choice of profes sional users The M100
6. se proximity to video monitors For very critical video monitoring applications a mini mum distance of four inches from the edge of the loudspeaker to the edge of the CRT is recommended Transducer Complement High Frequency Low Frequency Box Tuning Frequency Crossover Frequency M100 Impedance Nominal Minimum Enclosure Materials Replacement Parts M100 M100T Woofer Tweeter Grille M100 Network M100T Network Transformer Color Optional Accessories 2 5 1 inch Tweeter 13cm 514 inch Woofer 75 Hz 3 500 Hz 4 ohms 3 7 ohms at 270 Hz High impact polystyrene structural foam M100 RLF M100 RHF M100 RG M100 RNW M100T RNW M100T RXFMR Black M 100MB mounting bracket Order separately M100 M100T Specifications continued Dimensions Height 24 9 cm 9 8 Width 17 8 cm 7 0 in Depth 15 0 em 5 9 in Net Weight Shipping Weight 2 6 kg 5 7 lb each 5 7 kg 12 7 Ib per pair M100T Transformer Impedances Impedance Tap 100 Volt 70 Volt ow s em ew em Craw eroa Com a tsoa row sao oom wa saon M100T M100 Schematic WATTAGE SHOWN IS FOR 70 7V LINE 0 94W 1 88W INPUT COMMON 3 75W 7 5W E 15W 01010 YOO VOU 000 AL L 1604H BEAMWIDTH IN DEGREES 6 dB DIRECTIVITY FACTOR Reg Q FIGURE 1 FREQUENCY Hz
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