Altec Lansing M100T User Manual

KEY FEATURES

it Compact Size it Versatile Mounting Provisions it Low-Flux-Leakage Magnet Design it Extended Bass Response it 70 / 100 Volt Transformer

Version Available

Ml 00 / Ml OOT

Weather Resistant

Compact Loudspeaker System

PRIMARY SPECIFICATIONS

Frequency Response:

Usable Low-Frequency

Limit:

Long-Term Average

Power Handling:

MlOO

MIOOT

Sound Pressure Level

Dispersion Angle:

Directivity Factor:

Re(Q)

Directivity Index:

Di:

85-20,000 Hz, ± 3 dB,

1 Meter on Axis, Swept 1/3-Octave, Anechoic

Environment. 65 Hz, (10-dB-down point) Capacity per EIA Standard

RS-426A

160 watts.

1 to 30 watts in 3 dB steps. 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 (-Fl 3.4,-5.4),

1.500- 20,000 Hz

Median: 9.8 dB (-1-3.8 dB,

-3.6 dB), 2,000-20,000 Hz

DESCRIPTION

The Altec Lansing MlOO and MIOOT 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 MlOO has a 4 ohm impedance and the

Ml OOT 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 5Va' direct radiating woofer with a polypropylene

cone installed in an optimally vented high-impact

polystyrene enclosure. This combination produces extended bciss 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 r direct-radiating soft dome tweet er. The tweeter is ferro-fluid cooled eind 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 close 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.

Ml 00 / M100T Specifications (continued)

Transducer Complement,

High-Frequency:

Low-Frequency:

Box Tuning Frequency:

Crossover Frequency:

Ml00 Impedance,

Nominal:

Minimum:

Enclosure Materials:

Replacement Parts

MIOO/MIOOT,

Woofer:

Tweeter:

Grille:

MlOO,

Network:

MIOOT,

Network:

Transformer:

Color: Black

Optional Accessories:

2.5cm (1 inch) Tweeter 13cm (5'/4 inch) Woofer

75 Hz 3,500 Hz

4 ohms

3.7 ohms at 270 Hz

High impact polystyrene structural foam.

MIOO-RLF MIOO-RHF MIOO-RG

MIOO-RNW MIOOT-RNW

MIOOT-RXFMR

M-IOOMB mounting bracket. (Order separately)

Dimensions,

Height:

Width:

Depth:

Net Weight:

Shipping Weight:

MIOOT Transformer Impedances

Power

Tap 30W 335R 167« 15W 670n 335«

7.5W 1360«

3.7W 2700« 1360«

1.9W 5400« 2700«

0.94W N/A 5400«

24.9 cm (9.8 in.)

17.8 cm (7.0 in.)

15.0 cm (5.9 in.)

2.6 kg (5.7 lb) each

5.7 kg (12.7 lb) per pair.

Impedance

100-Volt 70-Volt

670«

WATTAGE SHOWN IS FOR 70.7V LINE.

MIOOT / Ml00 Schematic

I6O/4H

J'cT

m 90

to 80

100

liJ

Q —

Z-D

O' g

s <

FREQUENCY IN HERTZ

FIGURE — 1

Axial Frequency Response

360 300

200

rn 1 ■ ■ 1 11 ■ 1 1nr ■ I 1

100

80 60

40 30

HORIZONTAL 0 VERTICAL A

100 200 500 1000 2000

FREQUENCY (Hz)

FIGURE —2

Beamwidth vs. Frequency

SOO 1000 2000

Í1 - -

___

№

5000 10000 20000

210* ^ I _

---------------ISO*

^ 150*

2.000 Hz

210*^--»..^ I_________________150*

ISO*

4.000 Hz

NUMBERS INDICATE

100

SPEDFIC R« VALUES

100

0 «1

1 C

0 «

> o

yC>> a

1 e

® M* ^ ^

500 1000 2000 5000 10000 20000

FREQUENCY IN HERTZ

í:

FIGURE — 3

Directivity vs. Frequency

Whole Space (anechoic)

IT ^ ^

+ 20 ^

: CÍ

> CM

€1

+ 10

-< z

____

150*

SO* Horizontal

8,000 Hz Vertical — — —

FIGURE —4

Polar Response

•q:

tr O

> t >

QC Q

INSTALIATION NOTES

On the back of the Ml00 are 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. A U-type bracket, the

Ml00MB is also available. This will allow the Ml 00 to be mounted on walls or ceilings. A microphone stand adaptor is also included. Complete mounting instmctions are include with the Ml 00MB. Care should be taken to ensure that the chosen fixing point is strong enough to support the Ml00. Care should also be taken to ensure that the Ml00 is not exposed to direct precipi tation. If the speaker system is not used with one

of the mounting brackets, such as on a bookshelf, then the rubber feet that are included with the Ml00 should be attached to the speaker. If the spieaker is placed on the bottom side, then a mbber 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 the speaker is to be placed on its side, then a rubber foot should be attached to each of the four comers. The nameplate that is at tached to the grille may be rotated depending on which mounting orientation is used.

FIGURE 1

Wall 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,

[MlGOT only: 30-watt line transformer,]

and frequency dividing network installed in a vented enclosure. [MIOOTonly: 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.

ALJTEIO

LAIN!SI INI

P.O. BOX 26105 • OKLAHOMA CITY, OK 73126-0105 • U.S.A. • 405/324-5311 or FAX: 405/324-8981

The loudspeaker system shall meet the following performance criteria: Power handling, [Ml 00 only:

160 watts,] [MIOOT 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 stmctural 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 MlOO [lOOT].

PRINTED IN U.S.A. 5/91

Revision 1

42-02-037525 42-07-037525 531703