Altec Lansing PS-92 User Manual

Page 1
PS-92
12" Duplex®
Portable Loudspeaker System

PRIMARY SPECIFICATIONS

KEY FEATURES

★ Portable Loudspeaker System ★ Unique^ 5-Sided Enclosure ★ Medium-Output Capability
System Type;
Pressure sensitivity:
Frequency Response:
Power Handiing;
Maximum Long Term
Output:
impedance:
Two-way, vented type full-
range loudspeaker system.
97.0 dB SPL (1W, 50 HZ -15 kHz, re: 20 (xPa, see note 1).
50 H z - 15 kHz (see Figure 1, Note 2)
125 watts, 50 Hz -15 kHz, AES method (see note 3). 250 watts, 50 Hz -15 kHz, continuous program. 500 watts, 50 Hz -15 kHz, peak power.
117.2 dB SPL (125 watts input, 1 m, re: 20 (xPa, see note 4).
5.2 ohms minimum.
8.0 ohms nominal.

DESCRIPTION

The Altec Lansing PS-92 loudspeaker is a
two-way, factory assembled system capable of producing medium to high acoustic output from a small package. It is well suited for medium to high level sound reproduction in houses of worship, audio-visual presenta tions, conference rooms or other smaller acoustic environments. The PS-92 utilizes a 12 inch (30.5 cm) duplex® loudspeaker with a wide dispersion dome tweeter. Smooth tran sition at crossover is accomplished by a dual section 12 dB/octave network with a center frequency of 1.5 kHz. The PS-92 is also fully pro
tected by means of an auto-reset circuit breaker at the input of the system which will
not allow the inexperienced operator to damage the system's components. The en closure is constructed of 3/4-inch Enviro-
board™ covered in a protective light gray carpet that is more durable than conven tional coverings. The enclosure is supplied with a removable metal grille which adds to the duability. Inset handles on either side of the unit allow for easy transporta tion. A built-in stand mount compliments the versatility of this unit.
The Altec Lansing PS-92 is the ideal
choice where a flexible, portable, inexpen sive loudspeaker system must project out
standing live voice or music reproduction.
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18.8 in
(47.6 cm)
Components:
Crossover Network:
Input Terminals:
Replacement H.F.
Diaphragm:
Replacement LF.
Re cone Kit:
Replacement Grille:
. 22.0 in
______
(55.9 cm)
PS-92 SPECIFICATIONS (continued)
12-inch duplex® loudspeaker with
a wide-dispersion dome tweeter.
Two-way at 1500 Hz with a 12 dB per octave slope for both sections.
Two 1/4-inch phone jacks and two
Neutrik Speakon connectors.
25456
R920-8B
Model RG9820B
Altec Lansing continually strives to improve products and
performance. Therefore, specifications are subject to change without notice.
Enclosure:
Finish:
Dimensions:
Net Weight:
Shipping Weight:
Vented-type, built of 3/4-inch (1.9 cm) Enviro-board~ lined with glass wool.
Light gray carpet covering with black metal grille.
18.8 in (47.6 cm) high
22.0 in (55.9 cm) wide
13.8 in (34.9 cm) deep
43.0 lbs (19.5 kg)
49.0 lbs (22.3 kg)

NOTES ON MEASUREMENT CONDITIONS

Pink noise signal, one Watt calculated using E*/Zmin,
3.16 meter measurement distance referred to one meter. On-axis, one Watt calculated using E^/Zmin, 3.16 meter mea
2.
surement distance referred to one meter, bw frequencies cor rected for anechoic chamber error.
3.
This system rating patterned after the AES method for indi vidual driver, where the test signal is pink noise with a 6 dB CTest factor over the bandwidth of the system, with power cal culated using the E^/Zmin, for two hours.
This measurement made under the same conditions as FVes-
4. sure Sensitivity, but at rated power, and takes into account any power compression effects due to non-linearities in tiie system. Distortbn components invalid abov« 10 kHz. The distortion at
5. any given frec^iency may be found by graphically taking the difference between the fundamental and harmonb, and adding the number of Etedbels whfch the harmonic has been raised c«i the graph and apply the formula:
% distortion = 100 X
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400 Hz
1000 Hz
TT TTTT“T
~TT TTTT
A A
vV
~T ~TT Tm “T
V
W
A
\
IT'
/
/
r
_LL Jiil _L _LL
50 100 200 500 1K 2K SK 10K 20K
Figure 2. Frequency Response
FREQUENCY (№)
liii
1
_UL iiU _L
20 30 60
Figure 3.
Dispersion Angle
1600 Hz
10000 Hz
2000 Hz
5000 Hz
12500 Hz
HORIZONTAL-
VERTICAL
2500 Hz
6300 Hz
16000 Hz
nil 1 1 1 III! 1 1 1 Tm
1 1
Mi
nimum
mpedj
is.
.2 ohm
A
sat 60
nee 10 Hz
“T
\ /
1 1
20 50 100 200 500 IK 2K SK 10K 20K
Figure 4.
INI
1 1 1
FREQUENCY (Hi)
1 1 1
III!
Magnitude of Impedance
1 III
1
Figure 5. Q and Directivity Index
Figure 1 1/3-Octave Polar Response
Page 4

ARCHITECT'S AND ENGINEERS SPECIFICATIONS

The loudspeaker system shall be a two-way multipurpose type consisting of a 12-inch duplex® loudspeaker with a wide-dispersion dome radiator tweeter. The dividing network is a dual-section type 12 db/octave slope on both L.F. and H.F. sections with a crossover center frequency of 1.5 kHz. The loudspeaker system shall meet the following performance criteria: Power handing, 125 watts of pink noise with 6 dB
crest factor, band limited from 50 Hz - 15 kHz. Frequency response, smooth and uniformly usable from 50 № -15 kHz. Pressure sensiMty, 97 dB spl
a MARK IV company
P.O. BOX 26105 • OKLAHOMA CITY, OK 73126-0105 • U.S.A.
Phone: 405/324-5311 or FAX: 405/324-8981
© 1993 ALTEC LANSING CORPORATION
when measured at one meter on axis with one watt of band-limited pink noise from 50 Hz - 15 kHz. Minimum impedance, 5.2 ohms.
The enclosure shall be of the ported type, con structed of 3/4 inch Enviro-board™ lined with sound-absorbent glass wool. The enclosure shall
be covered in a protective gray carpet and feature a metal grille. The dimensions shall be 18.8 inches (47.6 cm) high by 22.0 inches (55.9 cm) wide by
13.8 inches (34.9 cm) deep. The loudspeaker shall
weigh 43.0 lbs. (19.5 kg) The loudspeaker system shall be the Altec Lansing PS-92.
PRINTED IN U.S.A. 3/93
42-02-038828 42-07-038828
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