USER MANUAL
SW218A
ac ve subwoofer
KEY FEATURES
• Very High Output
• Manifolded Transmission Line con
fi
gura on for very fast transient response
• Compact size for a very good output-toweight ra o
• 96KHz / 40 bit
fl
oa ng point CORE processing with PRONET remote control
• Digitally controlled Class D ampli
fi
er module with SMPS
INTRODUCTION
The SW218A subwoofer is designed to deliver high quality low frequency reproduc on where very high output is a key requirement, together
with well de
fi
ned deep bass response and fast transient response. Its compact size and light weight
make it suitable for several di
ff
erent uses, ranging from touring applica ons to
fi
xed installa ons and
high-level dance clubs.
The SW218A is a very high quality powered subwoofer system featuring some of the most advanced
technologies for low frequency reproduc on. Its unique and innova ve design is based on a con
fi
gura on
that can be de
fi
ned as Manifolded Transmission Line.
It uses manifolding of the front side of the cones to maximize the mutual coupling between the
two drivers, while loading the back of the cone with a large-size transmission line that has the
func on to create a transmission path from the back of the transducers to the front. This innova ve
con
fi
gura on does not use any large resonant cavity to load the speaker in order to get the lower
octave and this reduces signi
fi
cantly pressure decay me inside the enclosure, with large advantages
in terms of de
fi
ni on both at the lowest end and the upper bass. At the same me, it doesn’t use very
long transmission line paths as well. Its working principle is an hybrid combina on between a short
transmission line and an overdamped re
fl
ex load. Moreover, the maximiza on of the mutual coupling between the drivers increase the fastness
of the transient response while maximizing the overall energy e
ffi
ciency as well.
The SW218A subwoofer system is equipped with two high power 18” (460mm) transducers capable of long excursion (up to 30mm peak-to-
peak), controlled by high s
ff
ness Double Silicon Spider as centering suspension and by heavy duty surround. The motor structure features high
strength (BL²/Re) with op mized symmetry and excursion controlled by Inner Flux Demodula ng Ring. The robust copper 100mm (4”) voice coil is
wounded in two di
ff
erent layers both outside and inside the coil support, then doubling the coil surface exposed to air cooling and consequently
improving the long term thermal capacity of the loudspeaker. Cones are made of very high-s
ff
ness glass
fi
ber reinforced paper, featuring also
invisible water repellent treatment.
TECHNICAL SPECIFICATION
Acous
Ɵ
cal
Ampli
fi
er Type
Class D with Variable Switching Frequency
and SMPS
System type
Manifolded Transmission Line
Transducer
Two 18” (460 mm), 4” (100 mm) VC,
High s
ff
ness, water repellent, glass
fi
bre
reinforced cone
Flux Demodula ng Ring VC
Double Centering Spider Suspension
Output Power
2000 W + 2000 W
Mains Voltage Range (Vac)
230 V~ ±15% or 115 V~ ±15% 50/60 Hz
Mains Connector
PowerCon® (N NAC3MPB)
Consump on*
1400 W (nominal) 3400 W (max)
IN / OUT Connectors
Neutrik XLR-M / XLR-F
Frequency response (±3 dB)
36 Hz – 100 Hz (Processed)
IN / OUT Network Connectors
ETHERCON® (NE8FAV)
Maximum Peak SPL @ 1m
141 dB
Mechanical
Electrical
Width
1215 mm (47.87”)
Input Impedance
20 k
Ω
balanced
Height
590 mm (23.24”)
Input Sensi vity
+4 dBu / 1.25 V
Depth
950 mm (37.43”)
Signal Processing
CORE processing, 96kHz / 40bit
fl
oa ng
Depth Including Wheels
1050 mm (41.37”)
point SHARC DSP, 24 bit AD/DA converters
Construc on
15 mm, reinforced Phenolic Birch
Direct access Controls
4 Presets: Standard, InfraSub, Cardioid, User. Paint
High resistance, water based paint
Network Termina on, GND Link
Wheels
4 heavy-load 100 mm ø
Remote Controls
PRONET control so ware
Transport
10 handles
Network protocol
CANBUS
Net Weight
101.7 Kg (223.7 lbs.)
* Nominal consump on is measured with pink noise with a crest factor of 12
dB, this can be considered a standard music program.
revision 2014-11-10
