Mackie SA1232 Brochure - page 6
O F 6 P A G E S
SA1232
Active 3-Way Sound Reinforcement Speaker System
SPEAKER
SA
12
32
SA1232
Active 3-Way Sound Reinforcement Speaker System
O F 6 P A G E S
Mackie Designs continually engages in research related to product improvement. New material, pro-
duction methods, and design refi nements are introduced into existing products without notice as a
routine expression of that philosophy. For this reason, any current Mackie product may differ in some
respect from its published description, but will always equal or exceed the original design specifi ca-
tions unless otherwise stated. ©1999–2003 Mackie Designs Inc. All rights Reserved. Mackie and
the “Running Man” fi gure are registered trademarks of Mackie Designs Inc.
www.mackie.com
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UK
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UK
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GERMANY
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GERMANY
GERMANY
SA1232
1
O F 6 P A G E S
SPEAKER
SA
12
32
Part No. 0003214 Rev. A1 03/03
SA1232 Architects' and Engineers' Specifi cations
6
The active three-way, full-range loudspeaker
system shall incorporate two 12-inch low-frequency
(LF) transducers, a 6-inch horn loaded mid-frequency
(MF) transducer, and a 1-inch exit, 1.75-inch tita-
nium dome compression driver high-frequency (HF)
transducer. The LF drivers shall be mounted in a
vented enclosure tuned for optimum low-frequency
response. The MF and HF transducers shall be
loaded on a symmetrical constant-directivity horn
assembly designed for wide dispersion.
The system shall have a nominal coverage pat-
tern of 90° (horizontal) x 40° (vertical). System
frequency response shall vary no more than ±3 dB
from 45 Hz to 18 kHz measured on axis. The loud-
speaker shall incorporate a Class G low-frequency
amplifi er capable of delivering 1100 watts RMS
over a frequency range of 20 Hz – 700 Hz. The
system shall incorporate two Class AB 100 watt RMS
amplifi ers specifi cally designed to power the MF and
HF drivers over the range of 700 Hz – 3000 Hz and
3000 Hz – 20 kHz respectively. The amplifi ers shall
be mounted on an aluminum heat sink, which shall
be mounted on the rear of the speaker system, and
shall be convection cooled.
The rear mounted amplifi er assembly shall com-
prise separate signal and AC power panels sepa-
rated by a large aluminum heat sink. The signal
input panel shall contain an input and loop-through
XLR, a volume level control, and four status LEDs
for Power ON, Signal Present, Limit, and Thermal
functions. The system shall accept a standard line-
level signal via the XLR input connector. The power
switch and IEC AC connector are located on the
power panel.
Thermal protection shall be provided by a ther-
mal sensor mounted on the heat sink, which mon-
itors the heat sink temperature and triggers the
thermal protection circuit should the temperature
exceed 158° F (70° C). The Thermal LED shall
light and the input signal shall be muted until the
heat sink cools to a safe operating level, at which
point the thermal protection circuit auto-resets and
normal operation resumes.
Overload protection shall be provided by a
limiter circuit, which monitors the low-frequency
amplifi er output and reduces the input level to the
amplifi er should the amplifi er output begin to clip.
The loudspeaker enclosure shall have a trape-
zoidal shape and shall incorporate two side han-
dles, one on each side, and a top and bottom relo-
cation handle. The enclosure shall be constructed
of a combination multi-ply wood and high-pressure
injected structural resin, with a black PVC vinyl
fi nish. The front of the loudspeaker shall be covered
with a powder coated, weather-resistant perforated
steel grille.
The active three-way full-range loudspeaker
system shall be a Mackie Designs SA1232.
Electronic fi les for this product available at:
www.mackie.com
This Specifi cation Sheet SA1232_SS.PDF
Architects' and Engineers' Specifi cations SA1232_AE.TXT
Instruction Manual SA1232_IM.PDF