Axiom SW18AV2 User manual

SW18AV2
acve subwoofer
USER MANUAL
revision 2023-09-06

2
Watch for these symbols:
The lightning ash with arrowhead symbol within an equilateral triangle is intended to alert the user to the presence of uninsulated
“dangerous voltage” within the product’s enclosure, that may be of sucient magnitude to constute a risk of electric shock to
persons.
The exclamaon point within an equilateral triangle is intended to alert the user to the presence of important operang and
maintenance (servicing) instrucons in the literature accompanying the appliance.
IMPORTANT SAFETY INSTRUCTIONS
1. Read these instrucons.
2. Keep these instrucons.
3. Heed all warnings.
4. Follow all instrucons.
5. Do not use this apparatus near water.
6. Clean only with dry cloth.
7. Do not block any venlaon openings. Install in accordance with the manufacturer’s instrucons.
8. Do not install near any heat sources such as radiators, heat registers, stoves, or other apparatus (including ampliers) that
produce heat.
9. Do not defeat the safety purpose of the polarized or grounding-type plug. A polarized plug has two blades with one wider than
the other. A grounding-type plug has two blades and a third grounding prong. The wide blade or the third prong are provided
for your safety. If the provided plug does not t into your outlet, consult an electrician for replacement of the obsolete outlet.
10. Protect the power cord from being walked on or pinched, parcularly at plugs, convenience receptacles, and the point where
they exit from the apparatus.
11. Only use aachments/accessories specied by the manufacturer.
12. Use only with the cart, stand, tripod, bracket, or table specied by the manufacturer, or sold with the apparatus. When a cart
is used, use cauon when moving the cart/apparatus combinaon to avoid injury from p-over.
13. Unplug this apparatus during lightning storms or when unused for long periods of me.
14. Refer all servicing to qualied service personnel. Servicing is required when the apparatus has been damaged in any way, such
as power supply cord or plug is damaged, liquid has been spilled or objects have fallen into the apparatus, the apparatus has
been exposed to rain or moisture, does not operate normally, or has been dropped.
15. Warning: to reduce the risk of re or electric shock, do not expose this apparatus to rain or moisture.
16. Do not expose this equipment to dripping or splashing and ensure that no objects lled with liquids, such as vases, are placed
on the equipment.
17. To completely disconnect this apparatus from the ac mains, disconnect the power supply cord plug from the ac receptacle.
18. The mains plug of the power supply cord shall remain readily operable.
19. This apparatus contains potenally lethal voltages. To prevent electric shock or hazard, do not remove the chassis, input
module or ac input covers. No user serviceable parts inside. Refer servicing to qualied service personnel.
20. The loudspeakers covered by this manual are not intended for high moisture outdoor environments. Moisture can damage
the speaker cone and surround and cause corrosion of electrical contacts and metal parts. Avoid exposing the speakers to
direct moisture.
21. Keep loudspeakers out of extended or intense direct sunlight. The driver suspension will prematurely dry out and nished
surfaces may be degraded by long-term exposure to intense ultra-violet (UV) light.
22. The loudspeakers can generate considerable energy. When placed on a slippery surface such as polished wood or linoleum,
the speaker may move due to its acouscal energy output.
23. Precauons should be taken to assure that the speaker does not fall o a stage or table on which it is placed.
24. The loudspeakers are easily capable of generang sound pressure levels (SPL) sucient to cause permanent hearing damage
to performers, producon crew and audience members. Cauon should be taken to avoid prolonged exposure to SPL in excess
of 90 dB.
This marking shown on the product or its literature, indicates that it should not be disposed with other household wastes at the end
of its working life. To prevent possible harm to the environment or human health from uncontrolled waste disposal, please separate
this from other types of wastes and recycle it responsibly to promote the sustainable reuse of material resources. Household users
should contact either the retailer where they purchased this product, or their local government oce, for details of where and
how they can take this item for environmentally safe recycling. Business users should contact their supplier and check the terms
and condions of the purchase contract. This product should not be mixed with other commercial wastes for disposal.
CAUTION
To prevent electric shock hazard,
do not connect to main power
supply while grille is removed.

3
LIMITED WARRANTY
Proel warrants all materials, workmanship and proper operaon 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 funcon 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 descripon.
This warranty does not extend to damage resulng from improper installaon, 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 sll 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 defecveness.
• This unit package has been submied to ISTA 1A integrity tests. We suggest you control the unit condions immediately aer unpacking it.
• If any damage is found, immediately advise the dealer. Keep all unit packaging parts to allow inspecon.
• Proel is not responsible for any damage that occurs during shipment.
• Products are sold “delivered ex warehouse” and shipment is at charge and risk of the buyer.
• Possible damages to unit should be immediately noed to forwarder. Each complaint for package tampered with should be done within eight
days from product receipt.
CONDITIONS OF USE
Proel do not accept any liability for damage caused to third pares due to improper installaon, use of non-original spare parts, lack of
maintenance, tampering or improper use of this product, including disregard of acceptable and applicable safety standards. Proel strongly
recommends that this loudspeaker cabinet be suspended taking into consideraon all current Naonal, Federal, State and Local regulaons. The
product must be installed be qualied personal. Please contact the manufacturer for further informaon.
FEDERAL COMMUNICATIONS COMMISSION (FCC) STATEMENT
This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to part 15 of the FCC Rules. These limits
are designed to provide reasonable protecon against harmful interference when the equipment is operated in a commercial environment. This
equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the instrucon manual, may
cause harmful interference to radio communicaons.
Operaon of this equipment in a residenal area is likely to cause harmful interference in which case the user will be required
to correct the interference at their own expense.
This device complies with Part 15 of the FCC rules. Operaon is subject to the following two condions:
(1) this device may not cause harmful interference, and
(2) this device must accept any interference received, including interference that may cause undesired operaon.
DECLARATION OF CONFORMITY
The product is in compliance with:
EMC Direcve 2014/30/EU, LVD Direcve 2014/35/EU, RoHS Direcve 2011/65/EU and 2015/863/
EU, WEEE Direcve 2012/19/EU.
EN 55032 (CISPR 32) STATEMENT
Warning: This equipment is compliant with Class A of CISPR 32. In a residenal environment this equipment may cause radio interference.
Under the EM disturbance, the rao of signal-noise will be changed above 10 dB.
The product is in compliance with:
S.I. 2016/1091 Electromagnec Compability Regulaons 2016, S.I. 2016/1101 Electrical Equipment
(Safety) Regulaons 2016, S.I. 2012/3032 The Restricon of the Use of Certain Hazardous Substances
in Electrical and Electronic Equipment Regulaons 2012.
CISPR 32 STATEMENT
Warning: This equipment is compliant with Class A of CISPR 32. In a residenal environment this equipment may cause radio interference.
Under the EM disturbance, the rao of signal-noise will be changed above 10 dB.

4
INTRODUCTION
The SW18AV2 is a high power compact subwoofer designed to partner ED series point source loudspeakers for xed installaons
in discotheques, nightclubs and bars, and live music clubs, and for portable corporate audio-visual applicaons. It features a high
excursion 4” voice coil, 18” driver equipped with a double centred spider that maintains linear voice coil travel even at high output
levels. The phenolic birch plywood cabinet is equipped with pole mount socket, stacking feet, ush handles, and heavy duty wheels
to enable easy handling and transportaon.
The SW18AV2 subwoofer system is equipped with a high power 18” (460mm) transducer capable of long excursion (up to 30mm
peak-to-peak), controlled by high s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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ness glass ber reinforced paper, featuring also invisible water repellent treatment.
The SW18AV2 is processed by 40 bit oang point CORE2 DSP and powered by a high eciency CLASS D amplier module with a
newly designed power supply equipped with PFC, which reduces the power consumpon while enhancing reliability and consistency
in all operang condions. It will deliver punchy bass performance from a very compact cabinet, and thanks to the integral pole
mount socket partners well with any of the ED series of point source loudspeakers in portable corporate audio-visual applicaons,
while its small size enables it to be easily ed into ght venue spaces.
TECHNICAL SPECIFICATION
SYSTEM Amplier Type Class D amplier with SMPS & PFC
System’s Acousc Principle Direct radiaon, vented Output Power 2800 W
Frequency response (-6 dB) 36 Hz – 100 Hz (Processed) Mains Voltage Range (Vac) 100 - 240 V~ ±10% 50/60 Hz
Maximum Peak SPL @ 1m 132 dB Consumpon* 700 W (nominal) 1700 W (max)
TRANSDUCERS IN / OUT Connectors Neutrik XLR-M / XLR-F
Type 18” (460 mm), 4” (100 mm) VC, 8 ohm IN / OUT Network Connectors ETHERCON® (NE8FAV)
Cone High sness, water repellent, glass bre
reinforced diaphgram
Mains Connector PowerCon® (NAC3MPXXA)
Mains Link Connector PowerCon® (NAC3MPXXB)
Voice Coil Type Flux Demodulang Ring Cooling Variable speed DC fan
Suspension Double Centering Spider ENCLOSURE & CONSTRUCTION
ELECTRICAL Width 650 mm (25.6”)
Input Impedance 20 kΩ balanced Height 500 mm (19.7”)
Input Sensivity +4 dBu / 1.25 V Depth 564 mm (22.2”)
Signal Processing CORE2 processing, 40bit oang point
SHARC DSP, 24 bit AD/DA converters
Depth Including Wheels 673 mm (26.5”)
Enclosure Material 15 mm Phenolic Birch Plywood
Paint High resistance, water based paint
Direct access Controls
4 Presets (STANDARD/INFRASUB/
CARDIOID/USER), Network Terminaon,
GND Link
Wheels 4 x 80mm Polyurethane Wheels
Transport 2 handles
Net Weight 42.5 Kg (93.7 lbs.)
Remote Controls PRONET AX control soware
Network protocol CANBUS
* Nominal consumpon is measured with pink noise with a crest factor of 12 dB, this can be considered a standard music program.
INDEX
INTRODUCTION ...........................4
TECHNICAL SPECIFICATION ..................4
MECHANICAL DRAWING ....................5
OPTIONAL ACCESSORIES ....................5
SPARE PARTS ..............................5
I/O AND CONTROL OPERATIONS ..............6
MAINS~ IN. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
MAINS~ OUT ..............................6
FUSE HOLDER .............................6
ON ......................................6
PROT ....................................6
SIGN LIMIT ...............................6
INPUT ...................................6
LINK .....................................6
GND LIFT .................................6
NETWORK IN/OUT .........................6
TERMINATE ...............................6
PRESET BUTTON ...........................7
PRONET AX ...............................8
CARDIOID PRESET .........................10

5
MECHANICAL DRAWING
OPTIONAL ACCESSORIES
NAC3FX-W-TOP-L Neutrik Powercon® TRUE1 (for power in)* DHSS10M20 Sub-Speaker ø35mm 1-1.7m Pole with Handle and
M20 screw
NAC3MX-W-TOP-L Neutrik Powercon® TRUE1 (for power out)*
HTLACA Tool for ghtening powerCON TRUE1* KP210S Sub-Speaker ø35mm 0.7-1.2m Pole with M20 screw
HTLACB Tool for ghtening powerCON TRUE1* RAINCOV215 Rain protecon for connectors
NE8MC-B-1 Neutrik Ethercon PLUG COVERSW18 Cover for SW18
USB2CANDV2 Dual Port PRONET network converter AVCAT5PROxx Cat5e on cable drum, 30/50/75 m Length
see hp://www.axiomproaudio.com/ for detailed descripon and other available accessories.
*Note: See assembly instrucon downloadable from NEUTRIK WEB site at: hp://www.neutrik.com/
SPARE PARTS
91MDSW18AV2V2 Amplier module assembly 91DALITEMOD4HC Powerso LITEMOD4HC amplier module
NAC3PX-TOP Neutrik Powercon® TRUE1 inlet-outlet 91FSV15A MDA15R 6.3x32mm 15 A T Fuse
SCNAC-04 Neutrik Rubber Sealing for NAC3PX 98NEOS18SW8 18’’ woofer - 4” VC - 8 ohm
91DSPKT11 Input, Control and CORE2 DSP PCBA AC102GS 80 mm Swivel castor without brake
65 cm
25.6"
50 cm
19.7"
56.4 cm
22.2"
67.2 cm
26.5"
M20 Pole Adaptor

6
I/O AND CONTROL OPERATIONS
MAINS~ IN
Powercon® NAC3PX power inlet connector. To switch the amplier on, insert the
Powercon® connector and turn it clockwise into the ON posion. To switch the
amplier o, pull back the switch on the connector and turn it counter-clockwise
into the POWER OFF posion.
MAINS~ OUT
Powercon® NAC3PX power outlet connector. This is connected in parallel with
the MAINS~ IN. With 230V~ we suggest to link a maximum of 4 SW18AV2
loudspeakers, with 120V~ we suggest to link a maximum of 2 SW18AV2
loudspeakers.
FUSE HOLDER
Here is where the mains protecon fuse is placed.
WARNINGS:
• REPLACE THE PROTECTION FUSE ONLY WITH THE SAME TYPE: BUSSMANN MDA-15-R OR LITTELFUSE
326015.VX
• In the case of product failure or fuse replacement, disconnect the unit completely from the mains
power.
• Use a suitable power cable and mains plug to build the power cable, it must only be connected to a
socket corresponding to the specicaons indicated on the amplier unit. See assembly instrucon
downloadable from NEUTRIK WEB site at: hp://www.neutrik.com/
• The power cable must only be connected to a socket corresponding to the specicaons indicated
on the amplier unit.
• The power supply must be protected by a suitably rated thermo-magnec breaker.
Preferably use a suitable switch to power on the whole audio system leaving the
Powercon® always connected to each speaker, this simple trick extend the life of the
Powercon® connectors.
• Connect no more units to the MAINS OUT connector than as specied above.
• Turn on each unit one a me starng from the latest unit.
ON
This LED indicates power on status.
PROT
This red LED lights when the amplifier module is in protect mode for an internal fault and,
consequently, the amplier is muted.
SIGN LIMIT
This LED lights in green to indicate the presence of the signal and lights in red when an internal limiter
reduces the input level.
INPUT
Audio signal input with locking XLR connector. It has a fully electronically balanced circuitry including
AD conversion for the best S/N rao and input headroom.
LINK
A direct connecon from the input connector to link other speakers with same
audio signal.
GND LIFT
This switch li the ground of the balanced audio inputs from the earth-ground
of the amplier module.
NETWORK IN/OUT
- These are a standard RJ45 CAT5 connectors (with oponal NEUTRIK NE8MC
RJ45 cable connector carrier), used for PRONET network transmission of
remote control data over long distance or mulple unit applicaons.
TERMINATE
In a PRONET network the last loudspeaker device must be terminated (with an
inner load resistance) especially in a long run cabling: press this switch if you
want to terminate the unit.
PROCESSED
CAUTION
RISK OF ELECTRIC SHOCK
DO NOT OPEN
AVIS: RISQUE DE CHOC ELECTRIQUE, NE PAS OUVRIR
WARNING: TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK
DO NOT EXPOSE THIS PRODUCT TO RAIN OR MOISTURE
PROCESSED
CAUTION
RISK OF ELECTRIC SHOCK
DO NOT OPEN
AVIS: RISQUE DE CHOC ELECTRIQUE, NE PAS OUVRIR
WARNING: TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK
DO NOT EXPOSE THIS PRODUCT TO RAIN OR MOISTURE

7
PRESET BUTTON
This buon has two funcon:
1) Pressing it while powering on the unit:
ID ASSIGN The internal DSP assigns a new ID to the unit for the PRONET AX remote control operaon. Each loudspeaker
must have a unique ID to be visible in the PRONET AX network. When you assign a new ID, all the other
loudspeakers with the ID already assigned must be ON and connected to the network.
2) Pressing it with the unit ON you can select the DSP PRESET. The selected PRESET is indicated by the corresponding LED:
STANDARD This PRESET is suitable for any applicaon where low frequency reinforcement is required. It features a 90Hz
cut o frequency and it can be used in almost any environment in combinaon with any vercal arrays.
INFRA This PRESET can be used when a deeper bass response is required (Note that when this preset is used the sound
pressure level of the system is slightly reduced).
NOTE: INFRA and STANDARD PRESET must NOT be used together in close units.
CARDIOID This special PRESET, combined with the STANDARD PRESET, gives the advantage to reduce the low frequencies
at the back of an array of three subs, in order to obtain a more comfortable level for the performers on the
stage without losing level for the the audience in front of the array. The cardioid conguraon is also useful
in situaon where you want to reduce the bass frequency feedback due to many microphones on stage, for
example for acousc and jazz ensemble, classic orchestra, musicals. Further in this manual you can nd some
example how to set up a cardioid array.
USER This PRESET corresponds to USER MEMORY no. 1 of the DSP and, as a factory seng, it’s the same to
STANDARD. If you want to modify it, you have to connect the unit to a PC, edit the parameters with PRONET
AX soware and save the PRESET into USER MEMORY no. 1.
+15
+10
+5
0
-5
-10
-15
-20
-25
-30
-35
20 50 100 200 500 1K 2K 5K 10K 20K Hz
SW18A - PRESET RESPONSE
INFRA STANDARD

8
PRONET AX
PRONET AX soware has been developed in collaboraon with sound engineers and sound designers, in order to oer an “easy-to-
use” tool to setup and manage your audio system. With PRONET AX you can visualize signal levels, monitor internal status and edit
all the parameters of each connected device.
Download the PRONET AX app registering on MY AXIOM at the website at hps://www.axiomproaudio.com/.
The AXIOM acve loudspeaker devices can be connected in a network and controlled by the PRONET AX soware, for the network
connecon the USB2CAND (with 2-port) converter oponal accessory is needed.
PRONET AX network is based on a “bus-topology” connecon, where the rst device is connected to the network input connector
of the second device, the second device network output is connected to the network input connector of the third device, and so
on. To ensure a reliable communicaon the rst and the last device of the “bus-topology” connecon must be terminated. This can
be done by pressing the “TERMINATE” switch near the network connectors in the rear panel of the rst and the last device. For
the network connecons simple RJ45 cat.5 or cat.6 ethernet cables can be used (please don’t confuse a ethernet network with a
PRONET AX network these are completely dierent and must be fully separated also both use the same kind of cable).
USB2CAND
do not
pressed
pressed
LAST DEVICE
network
network
FIRST DEVICE
AND FOLLOWING
notebook
with PRONET AX so�ware
USB 2.0 port
1) pressed if the USB2CAND is the first device
2) not pressed if other AXIOM system is connected
to the other connector
EXAMPLE OF PRONET NETWORK WITH ED120A/150A AND SW18A

9
Assign the ID number
To work properly in a PRONET AX network each connected device must have a unique idener number, called ID. By default the
USB2CAN-D PC controller has ID=0 and there can be only one PC controller. Every other device connected must have its own unique
ID equal or greater than 1: in the network cannot exist two devices with the same ID.
In order to correctly assign a new available ID to each device for working properly in a Pronet AX network, follow these instrucons:
1. Switch o all the devices.
2. Connect them correctly to the network cables.
3. “TERMINATE” the end device in the network connecon.
4. Switch on the rst device keep pressed “PRESET” buon on the control panel.
5. Leaving the previous device switched on, repeat the previous operaon on the next device, unl the latest device is turned on.
The “Assign ID” procedure for a device makes the internal network controller to perform two operaons: reset the current ID; search
the rst free ID in the network, starng from ID=1. If no other devices are connected (and powered on), the controller assume ID=1,
that is the rst free ID, otherwise it searches the next one le free.
These operaons ensure that every device has it’s own unique ID, if you need to add a new device to the network you simply repeat
the operaon of step 4. Every device maintains its ID also when it is turned-o, because the idener is stored in the internal
memory and it is cleared only by another “Assign ID” step, as explained above.
With the network made always of the same devices the assigning ID procedure must be executed only the rst me the
system is turned on.
For more detailed instrucon about PRONET see the PRONET AX USER’S MANUAL included with the soware.

10
CARDIOID PRESET
The cardioid preset must be used in a sub array of three SW18AV2. Two box must be oriented towards the audience and one must
be turned in the opposite direcon (typically the box in the centre of the array). The boom and the top boxes must have the
STANDARD PRESET, the box in the middle must have the CARDIOID PRESET. The audio signal sent to all boxes is the same.
The CARDIOID PRESET has the same response of the STANDARD PRESET, but to obtain the maximum cancellaon on the back side
of the array it has the phase inverted and a proper level and delay seng.
The gure below shows two typical displacement of the array. The rst with all the boxes in horizontal posion for a total height of
1500 mm and a width of 650 mm. The second one with all the boxes in vercal posion for a total height of 650 mm and a width
of 1500 mm.
NOTES:
When placing the cardioid array keep a distance to walls or other obstacles of at least 80 cm (2.6 ) in order not to aect the
radiaon of the reversed cabinet.
When placing mulple cardioid arrays keep a distance between them of at least 140 cm (4.6 ) for vercal placement, or 100 cm
(3.3 )for horizontal placement, in order to maximize the combined radiaon of whole arrays.
80 cm min.
2.7  min.
140 cm min.
4.6  min.
80 cm min.
2.7  min.
stage
wall or other
big ostacle
bass sum direcon
bass cancellaon direcon
audience floor

11
stage
wall or other
big ostacle
bass sum direcon
bass cancellaon direcon
audience floor
80 cm min.
2.7  min. 100 cm min.
3.3  min.
80 cm min.
2.7  min.

PROEL S.p.A. (World Headquarters) - Via alla Ruenia 37/43 - 64027 Sant’Omero (Te) - ITALY
Tel: [phone] Fax: [phone] www.axiomproaudio.com