Altec Lansing M500 User Manual
HIGH ACOUSTIC OUTPUT
M500 Maestro Monitor - High Output Performance!
HIGH ACOUSTIC OUTPUT 250 WATT
FRONT MOUNTED COMPONENTS
RUGGED PASSIVE CROSSOVER
TWO-WAY VENTED SYSTEM
16" DIRECT RADIATOR
909 DRIVER AND HORN
T’-NUT SUSPENSION
APPLICATIONS
• Music Playback in Conference Facilities
• Small Dance Environments
• Simple Cluster in Houses of Worship
SPECIFICATIONS FOR THE M500 MAESTRO MONITOR TWO-WAY SYSTEM
System Type:
Pressure Sensitivity:
Frequency Response:
Power Handling:
Maximum Long-Term
Output:
Impedance:
Distribution Pattern:
Components:
Crossover Network:
Two-way, vented, full range
loudspeaker system.
96.5 dB SPL (1W, 500 Hz - 3kHz,
re: 20/tPa, see Note 1)
46 Hz - 20 kHz (see Figure 1,
Note 2)
250 watts, 80 Hz-20 kHz, AES method
(see Note 3)
120.5 dB SPL (250 watts input, 1 m,
re: 20/jPa, see Note 4)
6.8 ohms minimum, maximum
inductive phase angle = 39° @ 1028
Hz, maximum capacitive phase
angle = 41 ° @ 9 Hz, (see Figures 3 and
4, Note 5)
90° horizontally x 40° vertically
(see Figure 8).
Model 3154 low frequency loud
speaker, model 909-8A high frequency
driver, model MR994A Mantaray® high
frequency horn.
Part number 56-06-027908, at 630 Hz,
with choice of high frequency
attenuation.
Enclosure:
Input Connection:
Replacement H.F.
Diaphragm:
Replacement L.F.
Recone Kit:
Replacement Grille:
Dimensions:
Net Weight:
Shipping Weight:
Finish:
Vented type for optimum response,
built of (1.9 cm) black stained
birch plywood (unfinished veneer
model; 9815-8A) with appropriate
bracing and stiffeners, lined with glass
wool, including Vie" tee-nut mounting
points on each side and a removable
grille.
Red and black five-way binding posts.
Model 26420
Model R3154
RC-M500
33" (83.8 cm) high
261/2" (67.3 cm) wide
171/2" (44.5 cm) deep
86 lbs. (39.1 kg)
98 lbs. (44.5 kg)
Black stained birch veneer (M500)
and unfinished birch veneer (9815-8A),
black grille cloth.
50 100 200
Figure 3. Magnitude of Impedance
Distortion Components
Raised 18 dB
j
__
i/\I iAi/SAiiuK\l\ \\ A/fMvii'*r
20 50 100 200 500 IK 2K 5K 1
Figure 5. Harmonic Distortion at 0.01 Rated Power
(2.5 watts, See Note 7)
500 IK 2K
FREQUENCY (Hz)
I I I m i l l I I
FREQUENCY (Hz)
5K 10K 20K
Third / ;•
Harmonic/lf I
III» I,
»X
. 30 -
---------1--------
I 20 -
г--------1
--------1-------
A. Maximum Inductive
Phase Angle is
39° at 1028 Hz
A
1--------
C ? 10
u
<
Ш
IC
10
-
20
_____I_____
30
10 20 30
Figure 4. Complex Impedance
Figure 6. Harmonic Distortion at 0.1 Rated Power
(25 watts, See Note 7)
B. Maximum Capacitive
i 1 i
L
Phase Angie is
41° at 9 Hz
50 60
-
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