Architect's and engineer's specifications, Lansing – Altec Lansing M500 User Manual

Page 6

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25"

63.5cm.

,T"

10.2cm.

■ 17.5” -

44.5cm.

<)-------

-9-

4”—

10.2cm

9.5”

24.1cm.

LOUDSPEAKER SYSTEM IS SHOWN WITH LOW

FREQUENCY DRIVER TOWARD THE BOTTOM

Figure 15.

ARCHITECT'S AND ENGINEER'S SPECIFICATIONS

The loudspeaker shall be the Altec Lansing Maestro
Series M500. It shall be of the two-way bass reflex
type, consistingof a front mounted 16-inch (40.6
cm) low-frequency loudspeaker, a high-frequency
compression driver on an injection molded con
stant directivity horn, and a dividing network

having a crossover frequency of 630 Hz. The
loudspeaker system shall meet the following per

formance criteria: Power handling, 250 watts of
pink noise with

dB crest factor, band width

limited from 48 Hz to 20 kHz. Frequency response,

smooth and uniformly usable at high levels from
48 Hz to 20 kHz. Pressure sensitivity, 96.5 db SPL
at one watt, 500 Hz to 3 kHz, measured at a

distance of one meter on axis. Impedance,

ohms

nominal,

6.8

ohms minimum. Distribution pattern

90° horizontally nominal from 2 kHz to 20 kHz

40° vertical nominal from 2 kHz to 20 kHz

with asymmetrical coverage in the vertical plane.

The enclosure shall be constructed of braced
3/4-inch (1.9 cm) birch plywood damped with
sound absorbing glass wool. The M500 shall
have a black stained finish. The dimensions shall
be 33 inches high by

inches wide by

171/2

inches deep (83.8 cm high x 67.3 cm wide x

44.5 cm deep). The loudspeaker system shall
weigh

lbs. (39.1 kg).

LANSING*

a MARK IV company

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

PRINTED IN U.S.A. 8/90

AL-1602

42-02-027992