PACX81 - Synth Manuals
Vision Series
Coaxial, Two-Way Speaker System
SPEAKER
PACX81
PACX81
Features
■ Aligned coaxial speaker, using an 8" high-output
woofer and a cone loaded titanium dome tweeter
■ Built-in LICC (Low Impedance Compensated Crossover)
crossover
■ HF driver dynamic protection
■ Asymmetric trapezoidal enclosure for multiple
configurations
■ 13 ply birch plywood construction
■ Internal Inserts (M10 and M8) and eyebolt suspension
hardware
■ Exclusive Mackie Industrial — one-time, NO FAULT
repair policy
■ Five year limited warranty
■
■
■
■
Cluster Configurations
Distributed Systems
Zone Delay and Fill Systems
Floor Monitor
APPLICATIONS
professional full-range, ultra-compact coaxial loudspeaker systems providing wide bandwidth and light
weight in a low profile enclosure. The coaxial configuration of the transducers in the PACX81 provides an
ideal acoustic point source, yielding smooth frequency
and phase response throughout its coverage pattern.
The asymmetric cabinet design allows multiple applications including use as a floor or ceiling monitor.
■ The coaxial speaker consists of an 8" high-output
carbon fiber woofer with a 2" voice coil, combined with
a back-mounted titanium dome high frequency transducer suitable for difficult climatic environments.
■ The system includes a high-level crossover network
that features markedly lower (than conventional)
induction values in series with the woofer. We call this
innovation LICC (Low Impedance Compensated
Crossover). The benefit is delay reduction, reduced
phase shift and superior transient response. Dynamic
high-frequency driver protection is accomplished with
a fast-response filament resistor, chosen to complement the power curve of the driver.
■ The Mackie Industrial PACX81 is a part of the
VISION family of loudspeaker products including fullrange, cost-effective, two-way loudspeakers and complementary subwoofer cabinets. These enclosures
have a trapezoidal footprint for easy array configuration. All enclosures are constructed using 19mm voidfree, birch plywood and finished with a scratch-resistant black or white coating. Transducer components are
protected from the environment by a heavy gauge
metal grille with open-cell poly fiber backing. The
VISION products are eminently suited for fixed installation, ready for suspension via built-in M10 inserts with
metal reinforcement and forged shoulder eyebolt hardware. The PACX81 also includes M8 inserts.
■ This Mackie Industrial product is covered by an
exclusive, one-time, NO FAULT repair policy in addition
to a five year limited warranty.
PACX81
■ The model PACX81 (black) and PACX81W (white) are
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SPEAKER
PACX81 Coaxial, Two-Way Speaker System
Specifications
System
Freq. Range (–10 dB):
Freq. Response (–3 dB):
Symmetrical Coverage (–6 DB):
PACX81
Directivity Factor; Q(DI):
System Sensitivity1:
Rated Maximum SPL:
System Nominal Impedance:
System Input Power Rating2:
Recommended Amplifier3:
HF Protection:
Crossover:
Transducers
Low-Frequency:
Nominal Impedance:
Input Power Rating:
Sensitivity1:
High-Frequency:
Nominal Impedance:
Input Power Rating:
Sensitivity1:
60Hz–21kHz
100Hz–17kHz
110° averaged
800Hz to 16kHz
8.0 (9.0) averaged
800Hz to 16kHz
92dB, 1W @ 1m
120dB, @ 1m
8Ω
150W RMS; 600W Peak
250W
Dynamic
1.3kHz
8" (200mm) carbon fiber
woofer with 2" (50mm) coil
8Ω
180W AES; 720W Peak
92dB, 1W @ 1m
Horn-loaded titanium dome tweeter
8Ω
20W AES; 80W Peak
107dB, 1W @ 1m
Physical
Enclosure:
Asymmetric trapezoid, 13 ply,
19mm multilayered birch
Rigging Inserts:
4 points M10, 4 points
M8 threaded hardware
Color:
Black or white (PACX81W),
scratch resistant paint
Grille:
Custom perforated steel grille with
acoustically transparent fiber backing
Input Connectors:
Speakon® NL4
Dimensions (HxWxD):
15" x 11.81" x 10.63"
(381mm x 300mm x 270mm)
Net Weight:
25.4lb. (11.5kg)
Options
PA-A1
Forged shoulder M10 eyebolt hardware
1
Measured on axis in the far field with 1 watt (2.83V RMS, 8Ω) input and referenced to 1 meter distance
using the inverse square law. Listed sound pressure represents an average from 300Hz to 3kHz.
RMS using 20Hz to 20kHz, PN Spectrum, Peak for 2 hours with +6dB crest factor.
3
Recommended Amplifier is a power capability value that should be taken as a guide.
2
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PACX81 Coaxial, Two-Way Speaker System
PACX81
Vertical Polars
500Hz
200Hz
0˚
250Hz
0˚
800Hz
400Hz
1kHz
1.25kHz
0˚
3.15kHz
1.6kHz
0˚
2kHz
6.3kHz
Vertical Off-Axis Frequency Response Graph (UP)
8kHz
10kHz
12.5kHz
16kHz
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4kHz
5kHz
2.5kHz
0˚
630Hz
315Hz
Vertical Off-Axis Frequency Response Graph (DOWN)
PACX81
HorizontalPolars
0˚
0˚
200Hz
500Hz
250Hz
630Hz
315Hz
800Hz
400Hz
1kHz
0˚
0˚
1.25kHz
3.15kHz
1.6kHz
4kHz
2kHz
5kHz
2.5kHz
6.3kHz
0˚
Horizontal Off-Axis Frequency Reponse
8kHz
10kHz
12.5kHz
16kHz
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PACX81 Coaxial, Two-Way Speaker System
Frequency response is measured on-axis at a distance referenced back to
1m at 1-watt drive. Shown as a half space (2π) enviroment.
Directivity Index
Beamwidth vs. Frequency
11.81" (300mm)
3.74" (95mm)
10.63" (270mm)
3.15" (80mm)
15˚
15˚
45˚
4.92" (125mm)
BOTTOM
TOP
2.76" (70mm)
IN-OUT
1.46" (37mm)
5.0" (127mm)
PACX81
VISION
SERIES
15.00" (381mm)
6.38" (162mm)
CONCEIVED, DESIGNED, AND
MANUFACTURED BY MACKIE
INDUSTRIAL • MADE IN ITALY •
COPYRIGHT ©1999 • THE FOLLOWING
ARE TRADEMARKS/REGISTERED
TRADEMARKS OF MACKIE DESIGN INC.:
"MACKIE", "MACKIE INDUSTRIAL",
& THE "RUNNING MAN" FIGURE
IN-OUT
CAUTION:
SUSPENDING THIS SYSTEM SHOULD
BE DONE BY QUALIFIED
TECHNICIANS FOLLOWING
APPROPRIATE SAFETY STANDARDS
+1/–1FULL RANGE 160W- 8
SERIAL NUMBER
11.81" (300mm)
4.41" (112mm)
FRONT
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REAR
MANUFACTURING DATE
SPEAKER
PACX81 Coaxial, Two-Way Speaker System
PACX81
Architects’ and Engineers’ Specifications
The two-way loudspeaker system shall be self-contained
and consist of the following components: (1) an 8 inch, twoway coaxial loudspeaker; (2) a two-way crossover network;
(3) a vented enclosure.
The low-frequency section of the transducer shall be a
cone type loudspeaker having a cone diameter of at least 8
inches (200mm). It shall have a voice coil of at least 2 inches
(50mm) in diameter. It shall present a nominal impedance
load of 8Ω.
The high-frequency section of the transducer shall be a
dome tweeter. It shall have a titanium voice coil of at least 1
inch (25mm) in diameter. It shall present a constant-impedance load of 8Ω.
The system shall be crossed over by an internal, highlevel, passive network having a response of 12dB/octave.
The nominal crossover frequency shall be 1.3kHz. The lowpass section of the network shall have minimum inductance
in series with the low frequency driver component. A dynamic
high-frequency protection circuit based on a low-value, low
mass filament resistor shall limit the current available to the
high-frequency driver component. A switch shall be provided
to disconnect the crossover network, but not the high-frequency protection circuit, from the drivers to allow bi-amp
operation.
The enclosure shall be a vented design with an internal
volume of at least 0.53 cu. ft. The vent shall be tuned to
60Hz. It shall be constructed using 0.75 inch (19mm), voidfree birch plywood and finished with black, scratch resistant
paint. A model finished in white scratch-resistant paint shall
be available from the manufacturer. It shall be an asymmetrically shaped trapezoid to facilitate various monitor and
mounting configurations. A full size, detachable, perforated
steel grille, finished in black scratch-resistant paint shall
be provided. At least 8 reinforced threaded metal sockets
(M10 & M8) for attaching mounting hardware shall also be
provided. The overall dimensions of the enclosure shall not
exceed 15 x 11.81 x 10.63 inches (381mm x 300mm x
270mm). Connections to the loudspeaker shall be
Speakon® NL4 connectors.
(continued Architects’ & Engineers’ Specs)
The performance of the two-way loudspeaker system shall
be as follows: long-term power handling, at least 150 Watts
RMS; peak power handling, at least 600 Watts; frequency
response, 100Hz–17kHz at –3dB; maximum SPL, 120dB
(anechoic–1m); sensitivity, 92dB SPL (1W/1m anechoic);
–6dB coverage, measured average 800Hz–16kHz, 110° horizontal by 110° vertical. The two-way loudspeaker system
shall be a model PACX81 (PACX81W, white) manufactured by
Mackie Industrial.
Electronic files for this product available at:
www.mackieindustrial.com
This Specification Sheet
www.mackieindustrial.com
16220 Wood-Red Rd. NE, Woodinville, WA 98072 USA
888.337.7404, fax 425.487.4337, [email protected]
UK +44.1268.571.212, fax +44.1268.570.809, [email protected]
ITALY +39.0522.354.111, fax +39.0522.926.208, [email protected]
FRANCE +33.3.8546.9160, fax +33.3.8546.9161, [email protected]
GERMANY +49.2572.96042.0, fax +49.2572.96042.10, [email protected]
PACX81.PDF
Mackie Designs continually engages in research related to product improvement. New material, production 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. ©1999-2001 Mackie Designs Inc. All rights Reserved.
and
are
registered trademarks of Mackie Designs Inc. Mackie Industrial is a trademark of Mackie Designs Inc.
part no. 910-147/148-10 Rev.B
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