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INTRODUCTION
Thank you for choosing Mackie Designs’
active sound reinforcement speaker systems.
The FUSSION 1800SA and 1800S is an
extreme output active subwoofer system.
Designed to live on the road, this subwoofer
system is a double 18˝ design broken down
into two individual enclosures that make
load-in and load-out quick and easy. It in-
corporates a 2500 watt high-efficiency
amplifier system and two front-loaded,
high-precision 18˝ woofers mounted within
each cabinet. Connection and setup is a
breeze. Just connect the SUB OUT line-
level signal from a Fussion Series full-range
active speaker, plug in the power cord, and
you’re ready to go.
The FUSSION 1800SA accepts a line-
level signal via a female XLR input jack. All
Fussion Series full-range active speaker sys-
tems include a SUB OUT signal via a male
XLR that connects to the subwoofer system
quickly and easily. The FUSSION 1800SA
is specifically designed to work with the
FUSSION 1800S. Power for the passive
1800S is provided by the 1800SA via a
Neutrik™ female Speakon connector lo-
cated on the rear panel.
Because the amplifier is located just
inches away from the driver within its own
protected enclosure, the amplifier enjoys
several benefits. It sees a non-reactive load
with a constant impedance, which substan-
tially improves performance. It also sits on a
mammoth heatsink that eliminates the
need for fans, dramatically extending life
expectancy, and eliminating maintenance
cycles. A tremendous benefit of having the
amplifier located within the subwoofer
cabinet is that the FUSSION 1800SA func-
tions as a system, optimizing acoustic,
electronic, and mechanical designs to achieve
the highest level of performance and value.
Size was a paramount design objective
during the development of the FUSSION
1800SA and 1800S. Double 18˝ subwoofer
bins are typically very heavy, bulky, and dif-
ficult to handle. We spent over a year
speaking with regional touring companies
and gaining valuable insight from their ex-
periences and suggestions. The result is an
extremely compact system that is easy to
transport and set up.
High-Efficiency, High-Current Design
The FUSSION 1800SA is the first
subwoofer system to incorporate a passively
cooled, high-efficiency, high-current design
into an enclosure. The physical design is
based on an amp-module philosophy that
facilitates easy field service and repair. Re-
production of transients was the key goal
when designing the amplifier, and to ac-
complish this we used an exorbitant
quantity of high-voltage capacitors in the
power supply to store the necessary energy.
The result is a compact system that delivers
concert-level, high-quality performance
without the need of external amplification
and processing.
The FUSSION 3000 can run on 115VAC
or 230VAC and features soft-start circuitry
that eliminates “pops” and precisely con-
trols in-rush surges. The cabinet is
constructed of 13-ply, 18mm thick baltic
birch wood and is coated with high impact,
black textured paint.
