Mackie 1800s, 1800sa User Manual
Fussion Series Active, High-Output Subwoofer
FUSSION 1800SA/1800S
SUBWOOFER
FUSSION 1800SA/1800S
■ Mackie's FUSSION 1800SA/1800S is a high-out-
put, active subwoofer system featuring high-precision
18-inch transducers combined with application-specific amplifier technology. The system is composed of
two subwoofer cabinets: the 1800SA, which contains
a single 18-inch woofer and the active electronics,
and the 1800S, a single 18-inch woofer cabinet that
functions as a slave.
■ Transducers used in the FUSSION 1800SA/1800S
system feature 4-inch, Inside/Outside-wound voice
coils that offer extreme power-handling capabilities.
The cone assembly is reinforced with long-strand carbon fiber, which is impregnated into the cone.
Extensive materials science research and development has led to significant advancements in adhesives, voice coil former materials, surround and spider technologies. FUSSION 1800SA/1800S transducers were specifically designed for use in this type of
enclosure design. The magnetic assemblies used
incorporate advancements in coil venting and structural cooling that provide lower temperature rise and
substantially improved power compression characteristics.
■ The Fussion 1800 system amplifier module, locat-
ed in the 1800SA cabinet, is an excellent example of
the efficiency that is possible with active designs.
This module uses two high-efficiency, high-current,
CLASS G topology amplifiers running in bridged mode
to produce 2500 watts of power. Instead of an
onboard control system, the system relies on external
processing supplied by any FUSSION full range or
mid-high speaker system or by a stand-alone processor.
■ FUSSION 1800SA/1800S subwoofer system fre-
quency response is linear between 38Hz and 150Hz.
When used with any FUSSION full range or mid-high
speaker system, the onboard processor provides complete system management of all electronic and
acoustic functions including electronic active
crossover, electronic phase alignment, electronic time
correction, electronic equalization and complete
amplifier and component protection.
■ To ensure long-term reliability and performance,
the amplifier cards and processor are mounted to a
Features
■
Active, high-output dual 18" subwoofer system
■ 2500W high-efficiency, high-current amplifier
■ High output, 139dB peak
■ Two 18" high-precision transducers
■
4" high-temperature, inside/outside voice coils
■ 18mm birch plywood construction
■ Fully integrates with onboard acoustic man-
agement control system found in all Fussion
full-range or mid-high speaker systems
■ Individual 18" cabinets facilitate transport
and set-up
huge heat sink eliminating the need for fans, dramatically extending life expectancy and eliminating maintenance cycles. An easily-accessible rear
input and control panel offers substantial signalrouting flexibility. Line-level signal connections
are via XLR connectors. There is a main speakerlevel output on the 1800SA rear panel, which provides signal to the passive 1800S cabinet via an
EP-type connector. The system features soft-start
circuitry that eliminates pops and precisely controls AC inrush current surges.
■ Fussion 1800S and 1800SA cabinets are con-
structed using 18mm thick multi-layered birch
plywood and finished in black splatter paint.
There are two handles on each side for efficient
loading and transport.
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Active, High Output Subwoofer
FUSSION 1800SA/1800S
SUBWOOFER
FUSSION 1800SA/1800S
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Specifications
System Specifications:
Freq. Range: 38Hz–160Hz
Freq. Response (–3dB): 40Hz–150Hz
Rated Maximum SPL (long term): 136dB @ 1m (system)
Rated Maximum SPL (peak): 139dB @ 1m (system)
Recommended Crossover Point: 85Hz
Transducers
Low Frequency: (2 each)
Cone Diameter: 18" (457mm)
Voice Coil Diameter: 4" (100mm)
Nominal Impedance: 8Ω
Power Handling: 800 watts rms (long term)
Amplifiers
Low Frequency:
Rated Output: 1250 watts continuous @ 4Ω
2500 watts peak @ 4Ω
Audio Input / Output
Main Input: 2Ω (4 volts) balanced
Speaker Level Output (1800SA): EP4 female
Speaker Level Input (1800S): EP4 male
Line Input Power
US: 120VAC, 60 Hz
Recommended Amperage Service: 12A
AC Connector: 3-pin Twistlock 250VAC, 20A male
Europe: 230VAC, 50 Hz
Recommended amperage service: 8A
AC Connector: 3-pin IEC 250VAC, 16A male
In-rush Current Protection: Yes, transistor based
Safety Features
(PROVIDED BY FUSSION FULL RANGE OR MID-HIGH SPEAKER SYSTEMS
ONLY, NO ONBOARDCONTROLS IN 1800SA):
RMS limiting: Monitoring and limiting of continuous
RMS output of amplifiers
Thermal: Monitoring of thermal condition
of power supply and amplifiers.
High temperature condition engages input
stage shut down and auto reset function.
Physical
Enclosure: Rectangular; 18mm multi-layered birch
Handles: 4 each aluminum/rubber grips
Color: Black, splatter paint
Grille: Custom perforated oval steel grille
with anticorrosive treatment
Dimensions
Height: 32.9" (836mm)
Width: 23.6" (600mm)
Depth: 23.6" (600mm)
Net Weight: FUSSION 1800SA 145.2 lbs. (66 kg)
FUSSION 1800S 105.6 lbs. (48 kg)
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