Altec Lansing 3154 User Manual
3154 low frequency loudspeaker
Attention! The text in this document has been recognized automatically. To view the original document, you can use the "Original mode".
3154 LOW FREQUENCY
LOUDSPEAKER
SPECIFICATIONS
DESCRIPTION
The Altec Lansing Model 3154 15-inch low-
frequency loudspeaker is part of Altec's new
generation of woofers. Each loudspeaker in this
line was engineered for a particular purpose.
The 3154 is designed specifically for the repro
duction of low frequencies with minimum
distortion in a direct radiator enclosure.
When used as an integral component of the
8154 Loudspeaker System (6-cubic foot vented
enclosure), full capability of the 3154 is
achieved. This system provides a 3 dB down
frequency of 40 Hz with an optimum Thiele-
Small alignment.
Power capacity for the 3154 is 250 watts when
measured by the new AES standard specifica
tions. The 3154 will handle 500 watts of program
material when configured as the 8154 system, or
mounted in another suitable enclosure.
As with all Altec professional series woofers, the
3154 is built with a structurally reinforced die-
cast frame. The ferrite magnet structure coupled
with an exceptionally high power voice coil pro
vides low distortion even at very high sound
pressure levels.
Frame Diameter;
16"
•Power Rating:
500 watts prograir
250 watts continui
noise band-limite
Frequency Response (Hz):
Pressure Sensitivity
30-2000
(1 watt (E
X
I) with pink
noise band-limited
100-1000 Hz):
93 dB at 4 feet
95 dB at 1 meter
••Maximum Sound
Pressure (Full power
(EVZ) with pink noise
band-limited
40-400 H
z
):
115 dB at 4 feet
117 dB at 1 meter
Impedance:
8 ohms nominai
Recommended System;
8154 (6 ft=)
System Fj: 40 Hz
Maximum Excursion
Before Damage
(Peak to Peak);
1.54 in.
Voice Coil Diameter;
Thiele-Small Parameters—
3 in.
Free-Air Resonance
(fs):
25 Hz
Equivalent Volume
Compliance
(V
as
):
13.9 ft’
Total Q (Q
ts
):
0.33
Electrical Q (Q
es
):
0.38
Mechanical Q (Q
m s
):
2.12
Reference Efficiency (r)o):1.5%
D. C. Resistance (Rs):
6.4 ohms
Peak Linear
Displacement
(X
uax
):
0.25 in.
Peak Linear Volume
Displacement
(V
d
):
Effective Surface Area
.31.9 in.’
of Driver Diagram (So):
Additional Parameters—
128 in.’
Effective Piston
Diameter:
12.75 in.
Voice Coil Inductance:
4.5 mH
BL Factor:
16.2
Magnet Type;
ferrite
Magnet Weight;
48 oz.
Flux Density:
Mounting Information —
10,000 gauss
Baffle Opening
Diameter:
14Vo" (35.87 cm)
Mounting Bolt Circle
Diameter;
15" (38.1 cm)
Loudspeaker Depth
(front mounting);
5%" (14.13 cm)
Loudspeaker Depth
(rear mounting);
W
(16.20 cm)
Weight:
23.1 lbs (10.5 kg)
•AES power rating measured EVZ where E = 45V, 2 = 8^,
band-limited 40-400 Hz.
(AES
Recommended
Practice
Specification
of
Loudspeaker
Components Used in Professional Audio and Sound Reinforce
ment. See |. Audio Eng. Soc., Vol. .30, No. 3, 1982 March.)
**ln 8154X Enclosure.