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PA152
PA152
Two-Way Speaker System
Two-Way Speaker System
Architects' and Engineers' Specifications
The two-way loudspeaker system shall be self-contained
and consist of the following components: (1) a 15-inch, low-
frequency driver; (2) a high-frequency section consisting of a
constant-directivity horn and compression driver; (3) a two-
way crossover network; (4) a vented enclosure.
The low-frequency transducer shall be a cone type
loudspeaker having a cone diameter of at least 15 inches
(380 mm). It shall have a voice coil of at least 4 inches
(100 mm) in diameter. It shall present a nominal load imped-
ance of 8 Ω. Sensitivity shall be at least 97 dB when measured
at 1 m with an input of 1 Watt and have a power rating of at
least 350 Watts (AES), 1400 Watts peak.
The high frequency section shall have a compression driv-
er with a titanium diaphragm of at least 3 inches (76 mm) in
diameter. It shall present a constant-impedance load of 16 Ω.
It shall be connected to a constant-directivity horn having
a throat diameter of at least 2 inch (51 mm) and a nominal
coverage pattern of 85° horizontal by 65° vertical. Sensitivity
shall be at least 107 dB when measured at 1 m with an input
of 1 Watt and the power rating shall be at least 75 Watts
(AES), 300 Watts peak.
The system shall be crossed over by an internal, high-
level, passive network having a response of 12 dB/octave.
The nominal crossover frequency shall be 1.6 kHz. The
low-pass section of the network shall have minimum induc-
tance in series with the low-frequency driver. The high-pass
section of the network shall be equalized to optimize the
performance of the constant-directivity horn. A dynamic
high-frequency protection circuit based on a low-value, low-
mass filament resistor shall limit the current available to the
compression driver. A connection option shall be provided to
disconnect the crossover network, but not the high-frequency
protection circuit, from the drivers to allow bi-amp operation.
Connections to the loudspeaker shall be Speakon
connectors.
The enclosure shall be a vented design with an internal
volume of at least 3.39 cu. ft. and a vent shall be tuned to
55 Hz. It shall be constructed using 0.75 inch (19 mm), void-
free birch plywood and finished with black, scratch-resistant
paint. It shall be trapezoidal shaped with 15° angled sides.
A full size, detachable, perforated steel grille, finished in
black scratch-resistant paint shall be provided. At least 10
reinforced threaded metal sockets (M10) for attaching mount-
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UK
+ 44.1268.570.808, fax + 44.1268.570.809, industrial@rcf-uk.com
ITALY
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FRANCE
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GERMANY
+49.2572.96042.0, fax +49.2572.96042.10, industrial@mackie.de
ing hardware, three eye bolts and two hand-carry locations
shall also be provided. The overall dimensions of the enclo-
sure shall not exceed 29.85 x 19.9 x 18 inches (758 mm x
505 mm x 455 mm).
The performance of the two-way loudspeaker system shall
be as follows: long-term power handling, at least 500 Watts
RMS; peak power handling, at least 2000 Watts; frequency
response, 70 Hz–20 kHz at –3 dB; maximum SPL, 130 dB
(anechoic–1 m); sensitivity, 97 dB SPL (1 W/1 m anechoic);
–6 dB coverage, measured average 1 kHz–16 kHz, 85° hori-
zontal by 65° vertical. The two-way loudspeaker system shall
be a model PA152 manufactured by Mackie Industrial.
®
NL4
Electronic files for this product available at:
www.mackieindustrial.com
This Specification Sheet
Mackie Designs continually engages in research related to product improvement. New material, produc-
tion methods, and design refinements are introduced into existing products without notice as a routine
expression of that philosophy. For this reason, any current Mackie Industrial product may differ in some
respect from its published description, but will always equal or exceed the original design specifications
unless otherwise stated. ©1999-2000 Mackie Designs Inc. All rights Reserved.
are registered trademarks of Mackie Designs Inc. Mackie Industrial is a trademark of Mackie Designs Inc.
PA152.PDF
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part no. 910-153-10 Rev.B1
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