Axiom SW218XP User manual
USER MANUAL
SW218XP
passive subwoofer
KEY FEATURES
• Very High Output • Manifolded Transmission Line conguraon for very fast transient response
• Compact size for a very good output-to-weight rao • Tetracoil dual voice coil for e�tended linear response and increased power handling• Tetracoil dual voice coil for e�tended linear response and increased power handling
• High-strength, water repellent, glass ber reinforced cones
INTRODUCTION
The SW218XP subwoofer is designed to deliver high quality low frequency reproducon where very high output is a key requirement, together
with well dened deep bass response and fast transient response. Its compact size and light weight
make it suitable for several dierent uses, ranging from touring applicaons to �ed installaons and
high-level dance clubs.
The SW218XP is a very high quality powered subwoofer system featuring some of the most advanced
technologies for low frequency reproducon. Its unique and innovave design is based on a conguraon
that can be dened as Manifolded Transmission Line.
It uses manifolding of the front side of the cones to ma�imize the mutual coupling between the
two drivers, while loading the back of the cone with a large-size transmission line that has the
funcon to create a transmission path from the back of the transducers to the front. This innovave
conguraon does not use any large resonant cavity to load the speaker in order to get the lower
octave and this reduces signicantly pressure decay me inside the enclosure, with large advantages
in terms of denion 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 combinaon between a short
transmission line and an overdamped ree� load. Moreover, the ma�imizaon of the mutual coupling between the drivers increase the fastness
of the transient response while ma�imizing the overall energy eciency as well.
The SW218P subwoofer system is equipped with two high power 18” (460mm) transducers capable of long e�cursion (up to 30mm peak-to-
peak), and featuring a a large displacement suspension system. These transducers use Tetracoil technology, where two dierent, a�ially separated
magnec gaps and two inside-outside 100mm (4” ) diameter voice coils are wound on the same former and suspended evenly in the two magnec
gaps. This creates an equivalent voice coil diameter greater than 6”, resulng in a larger heat dissipaon area for and increased power handling.
Addional key advantages of the Tetracoil technology are also minimized distoron and a very symmetric and at inductance curve.
Cones are made of very high-sness berglass reinforced paper, featuring also invisible water repellent treatment.
TECHNICAL SPECIFICATION
Acouscal Connectors
System type Manifolded Transmission Line Connector Type Neutrik® Speakon® NL4 � 2
Transducer
Two 18” (460 mm), 4” (100 mm) VC,
Water repellent cone and epo�y coated
plates, 100mm (4in) Tetracoil dual voice coil,
equivalent to a single coil diameter
larger than 152mm (>6in) suspension, ultra
linear suspension behavior
Input Wiring LF1 = Pin 1+/1-; LF2 = Pin 2+/2-
Mechanical
Width 1215 mm (47.87”)
Height 590 mm (23.24”)
Depth 950 mm (37.43”)
Frequency response (±3 dB) 30 Hz – 92 Hz (Processed) Depth with Wheels / Dolly 1078 mm (42.44”) / 1110 mm (43.70”)
Frequency response (±10 dB) 27 Hz – 300 Hz (Unprocessed) Construcon 15 mm, reinforced Phenolic Birch
Sensivity (1.41V @ 1m, 2Pi) 101 dB (averaged from 40 to 100 Hz) Paint High resistance, water based paint
Ma�imum Peak SPL @ 1m 143 dB Transport 10 handles
Electrical Net Weight 114 Kg (251.3 lbs.)
Nominal Impedance 8 Ω + 8 Ω Wheels or Transport Dolly 4 heavy-load 100 mm ø (oonal)
Minimum Impedance 5.7 Ω + 5.7 Ω @ 36 Hz
Power Handling Connuous* 1800 W + 1800 W
Power Handling Program 3600 W + 3600 W
Power Handling Peak 7000 W + 7000 W
Power Compression
@ -10 dB Power (180 W + 180 W) = 0.6 dB
@ -3 dB Power (900 W + 900 W) = 2.0 dB
@ 0 dB Power (1800 W + 1800 W) = 3.4 dB
* AES Pink Noise Power
revision 2017-03-29
MECHANICAL DRAWING
121.5 cm
47.83"
59.0 cm
23.23"
95.0 cm
37.4"
107.8 cm
42.44"
111.0 cm
43.7"
Mounng Pole
Transport Dolly
Locking Pin
Swivel
Castor
with oponal wheels
with oponal transport dolly
OPTIONAL ACCESSORIES
(available soon) Transport Dolly
AC103GS 100 mm Swivel castor without brake
NL4FX Neutrik Speakon® PLUG
PC260 2 in 6 out digital loudspeaker processor
USB2CAN PRONET network converter
see hp://www.axiomproaudio.com/ for detailed descripon and other available accessories.
SPARE PARTS
AC103GS 100 mm Swivel castor without brake
AC115DN Black steel handle
98AXM218TLW8 18’’ woofer - 4” Tetracoil® dual voice coil - 8 ohm
NL4MP Neutrik Speakon® panel socket
REAR PANEL
INPUT - Power input for the e�ternal amplier. The SW218XP does not include a passive crossover for ltering the signal. The connecons are
the following:
INPUT - LINK
NL4 pin number internal connecon
1+ LF1+
1- LF1-
2+ LF2+
2- LF2-
LINK - Power output in parallel with the INPUT socket for connecng the unit to another speaker. The number of SW218P cabinets that can be
connected in parallel depends on the amplier load capacity.
LIMITED WARRANTY
Proel warrants all materials, workmanship and proper operaon of this product for a period of two years from the original date of purchase. If any defects are found
in the materials or workmanship or if the product fails to funcon properly during the applicable warranty period, the owner should inform about these defects the
dealer or the distributor, providing receipt or invoice of date of purchase and defect detailed descripon. This warranty does not e�tend to damage resulng from
improper installaon, misuse, neglect or abuse. Proel S.p.A. will verify damage on returned units, and when the unit has been properly used and warranty is sll
valid, then the unit will be replaced or repaired. Proel S.p.A. is not responsible for any “direct damage” or “indirect damage” caused by product defecveness.
• This unit package has been submied to ISTA 1A integrity tests. We suggest you control the unit condions immediately aer unpacking it.
• If any damage is found, immediately advise the dealer. Keep all unit packaging parts to allow inspecon.
• Proel is not responsible for any damage that occurs during shipment.
• Products are sold “delivered e� warehouse” and shipment is at charge and risk of the buyer.
• Possible damages to unit should be immediately noed to forwarder. Each complaint for package tampered with should be done within eight days from product
receipt.
SAFETY INSTRUCTIONS
– To reduce the risk, close supervision is necessary when the product is used near children.
– Protect the apparatus from atmospheric agents and keep it away from water, rain and high humidity places.
– This product should be site away from heat sources such as radiators, lamps and any other device that generate heat.
– This product should be located so that its locaon or posion does not interfere with its proper venlaon and heang dissipaon.
– Care should be taken so that objects and liquids do not go inside the product.
– The product should be connected to a power supply mains line only of the type described on the operang instrucons or as marked on the product. Connect the
apparatus to a power supply using only power cord included making always sure it is in good condions.
– WARNING: The mains plug is used as disconnect device, the disconnect device shall remain readily operable.
– Do not cancel the safety feature assured by means of a polarized line plug (one blade wider than the other) or with a earth connecon.
– Make sure that power supply mains line has a proper earth connecon.
– Power supply cord should be unplugged from the outlet during strong thunderstorm or when le unused for a long period of me.
CE CONFORMITY
Proel products comply with direcve 2004/108/EC (EMC), as stated in EN 55103-1 and EN 55103-2 standards and with direcve 2006/95/CE (LVD), as stated in EN
60065 standard.
PROEL S.p.A. (World Headquarter) - Via alla Ruenia 37/43 - 64027 Sant’Omero (Te) - ITALY
Tel: +39 0861 81241 Fax: +39 0861 887862 ���.axiomproaudio.com���.axiomproaudio.com
Table of contents
Other Axiom Subwoofer manuals
