Void Nexus Q User manual

voidacoustics.com
Nexus Q
Sophisticated finish, complimented by strategic design
USER GUIDE V2.0

©2022 Void Acoustics Research Ltd.
This user guide is subject to change without notice.
For the latest online version, visit: www.voidacoustics.com
Void Acoustics and the Void logo are registered trademarks of Void Acoustics
Research Ltd. in the United Kingdom, USA and other countries; all other Void
trademarks are the property of Void Acoustics Research Ltd.

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Contents
1 Safety and Regulations 4
1.1 Important Safety Instructions 4
1.2 Limitations 4
1.3 EC Declaration of Conformity 4
1.4 UKCA Conformity 4
1.5 Warranty Statement 4
1.6 WEEE Directive 4
2 Unpacking and Checking 5
3About 6
3.1 Welcome 6
3.2 Nexus Q Overview 6
3.3 Key Features 6
3.4 Nexus Q Specifications 7
3.5 Nexus Q Dimensions 7
4 Cabling and Wiring 8
4.1 Electrical Safety 8
4.2 Cable Considerations for Fixed Installations 8
4.3 Impedance Graph 8
4.4 Nexus Q Wiring Diagram 9
4.5 Bias Q3/Q5 speakON™ Wiring 9
4.6 Amplifier Loading Guidelines 10
5 Adjustments 11
5.1 Wheel Removal 11
5.2 Grille Removal 12
6 Service 13
6.1 Return Authorisation 13
6.2 Shipping and Packing Considerations 13
7 Appendix 14

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1.1 Important safety instructions
The lightning flash with an 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 constitute a risk of
electric shock to persons.
The exclamation point within an equilateral triangle
is intended to alert the user of the presence of
important operating and maintenance (servicing)
instructions in the literature accompanying the
appliance.
Safety instructions - read this first
1. Read these instructions.
2. Keep these instructions.
3. Heed all warnings.
4. Follow all instructions.
5. Do not use this apparatus near water.
6. Clean only with a dry cloth.
7. Do not block any ventilation openings. Install in accordance with
the manufacturer’s instructions.
8. Do not install near any heat source such as radiators, heat
registers, stoves, or other such apparatus that produce heat.
9. Do not defeat the safety purpose of the grounding-type plug. A
grounding type plug has two blades and a third grounding prong.
The third prong is provided for your safety. If the provided plug
does not fit into your outlet, consult an electrician for replacement
of the obsolete outlet.
10. Protect power cords from being walked on or pinched
particularly at plugs, convenience receptacles, and the point where
they exit the apparatus.
11. Only use attachments and accessories specified by Void
Acoustics.
12. Only use with the cart, stand, tripod, bracket, or table specified
by the manufacturer, or sold with the apparatus. When a cart is
used, use caution when moving the cart/apparatus combination to
avoid injury from tip-over.
13. Unplug the apparatus during lightning storms or when unused
for long periods of time.
14. Refer all servicing to qualified service personnel. Servicing
is required when the apparatus has been damaged in any way,
such as when the 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. Since the mains power supply cord attachment plug is used to
disconnect the device, the plug should always be easily accessible.
16. Void loudspeakers can produce sound levels capable of
causing permanent hearing damage from prolonged exposure.
The higher the sound level, the less exposure needed to cause
such damage. Avoid prolonged exposure to the high sound levels
from the loudspeaker.
1.2 Limitations
This guide is provided to help familiarise the user with the
loudspeaker system and its accessories. It is not intended to
provide comprehensive electrical, fire, mechanical and noise
training and is not a substitute for industry-approved training. Nor
does this guide absolve the user of their obligation to comply
with all relevant safety legislation and codes of practice. While
every care has been taken in creating this guide, safety is user-
dependent and Void Acoustics Research Ltd cannot guarantee
complete safety whenever the system is rigged and operated.
1.3 EC declaration of conformity
For EC Declaration of Conformity please go to:
www.voidacoustics.com/eu-declaration-loudspeakers
1.4 UKCA marking
For details of the UKCA marking go to:
www.voidacoustics.com/uk-declaration-loudspeakers
1.5 Warranty statement
For warranty statement go to:
https://voidacoustics.com/terms-conditions/
1.6 WEEE directive
If the time arises to throw away your product, please recycle all
the components possible.
This symbol indicates that when the end-user
wishes to discard this product, it must be sent
to separate collection facilities for recovery
and recycling. By separating this product from
other household-type waste, the volume of
waste sent to incinerators or land-fills will be
reduced and natural resources will thus be
conserved.
The Waste Electrical and Electronic Equipment Directive (WEEE
Directive) aims to minimise the impact of electrical and electronic
goods on the environment. Void Acoustics Research Ltd complies
with the Directive 2002/96/EC and 2003/108/EC of the European
Parliament on waste electrical finance the cost of treatment and
recovery of electronic equipment (WEEE) in order to reduce the
amount of WEEE that is being disposed of in land-fill sites. All of
our products are marked with the WEEE symbol; this indicates that
this product must NOT be disposed of with other waste. Instead
it is the user’s responsibility to dispose of their waste electrical
and electronic equipment by handing it over to an approved
reprocessor, or by returning it to Void Acoustics Research Ltd for
reprocessing. For more information about where you can send
your waste equipment for recycling, please contact Void Acoustics
Research Ltd or one of your local distributors.
1 Safety and Regulations

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2 Unpacking and Checking
All Void Acoustics products are carefully manufactured and thoroughly tested before being
despatched. Your dealer will ensure that your Void products are in pristine condition before
being forwarded to you but mistakes and accidents can happen.
Before signing for your delivery:
• Inspect your shipment for any signs of contamination, abuse or transit damage as soon
as you receive it
• Check your Void Acoustics delivery fully against your order
• If your shipment is incomplete or any of its contents are found to be damaged; inform
the shipping company and inform your dealer.
When you are removing your Nexus Q loudspeaker from its original packaging:
• Nexus Q loudspeakers come packaged in a lid and base carton that has a protective sleeve
around it; avoid using sharp implements to remove the cardboard to protect the finish
• If you need to place the loudspeaker on a flat surface ensure you use a lint free product to
protect the finish
• When you have removed the Nexus Q loudspeaker from the packaging inspect it to ensure
there is no damage and keep all original packaging in case it needs to be returned for any
reason.
See section 1.5 for registration and warranty conditions and see section 6 if your product
needs servicing.

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3 About
3.1 Welcome
Many thanks for purchasing this Void Acoustics Nexus Q. We truly appreciate your support.
At Void, we design, manufacture and distribute advanced professional audio systems for
the installed and live sound market sectors. Like all Void products, our highly skilled and
experienced engineers have successfully combined pioneering technologies with ground-
breaking design aesthetics, to bring you superior sound quality and visual innovation. In buying
this product, you are now part of the Void family and we hope using it brings you years of
satisfaction. This guide will help you both use this product safely and ensure it performs to its
full capability.
3.2 Nexus Q overview
As part of the Nexus low frequency system, the Nexus Q delivers impressive upper bass fre-
quencies via a new enclosure design. The four high power 12” drivers use a front-loaded horn
to achieve high eciency and a rear port with a newly developed pressure gradient arrange-
ment. This configuration results in unparalleled output, definition, and total elimination of
colouration from any turbulent or mechanical port noise.
3.3 Key features
• 4 x 12” Upper Bass Enclosure
• Four high power 12” transducers
• Front loaded horn
• High eciency
• Newly developed ‘pressure gradient’ arrangement
• Dual Neutrik speakON™ NL4s provided for driver connections

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3 About
3.4 Nexus Q specification
Frequency response 60 Hz - 150 Hz ±3 dB
Eciency1110 dB 1W/1m
Nominal impedance 2 x 4 Ω
Power handling22 x 2000 W AES
Maximum output3145 dB cont, 151 dB peak
Driver configuration 4 x 12”
Dispersion Array dependant
Connectors 2 x 4-pole speakON™
Height 754 mm (29.7”)
Width 738 mm (29”)
Depth 860 mm (33.9”)
Weight 130 kg (286.6 lbs)
1Measured in half space 2AES2 - 1984 compliant 3Calculated
3.5 Nexus Q dimensions
738 (29”)
738 (29”)
754 (29.7”)
860 (33.9”) 738 (29”)
754 (29.7”)
738 (29”)
860 (33.9”)
738 (29”)
860 (33.9”)
Figure 3.1: Dimensions

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4 Cable and Wiring
4.1 Electrical safety
To avoid electrical hazards please note the following:
• Do not access the inside of any electrical equipment. Refer servicing to
Void-approved service agents.
4.2 Cable considerations for fixed installations
We recommend specifying installation-grade Low Smoke Zero Halogen (LSZH) cables for
permanent installations. The cables should use Oxygen Free Copper (OFC) of grade C11000
or above. Cables for permanent installations should be compliant with the following standards:
• IEC 60332.1 Fire retardancy of a single cable
• IEC 60332.3C Fire retardancy of bunched cables
• IEC 60754.1 Amount of Halogen Gas Emissions
• IEC 60754.2 Degree of acidity of released gases
• IEC 61034.2 Measurement of smoke density.
We suggest using the following maximum copper cable lengths to keep level losses below 0.6 dB.
Metric mm2Imperial AWG 4 Ωload 2 Ωload
2.50 mm213 AWG 18 m 9 m
4.00 mm211 AWG 30 m 15 m
4.3 Impedance graph
Figure 4.1: Impedance graph
10 10020 50 200 500 1k 2k 5k 10k 20k
5
10
15
20
25
Frequency (Hz)
Impedance (Ω)

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4 Cable and Wiring
+
-
1+
1-
2+
2-
1+
1-
2+
2-
1+
1-
2+
2-
1+
1-
2+
2-
In
Out/Link
12” LF
+
-
12” LF
+
-
12” LF
+
-
12” LF
4.4 Nexus Q wiring diagram
speakONTM pins 1+/1- speakONTM pins 2+/2-
In LF (2 x 12”) LF (2 x 12”)
Out LF link LF link
Figure 4.2: Wiring diagram
4.5 Bias Q3/Q5 speakONTM wiring
1+
1-
2+
2-
1+
1-
2+
2-
Figure 4.4: Bias Q5
Bias Q3/Q5 Out 1
Output LF (4 x 12”)
Max parallel units 2 (2 Ωload to amplifier)
Figure 4.3: Bias Q3
LF 1+
LF 1-
LF 2+
LF 2-
LF 1+
LF 1-
LF 2+
LF 2-

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4.6 Amplifier loading guidelines
4 Cable and Wiring
Bias Q5
Bias Q5
Bias Q5
Bias Q5
Figure 4.5: 2 x Nexus Q: 4 Ωper channel/1 amplifier
Figure 4.6: 4 x Nexus Q: 2 Ωper channel/1 amplifier
Figure 4.7: 6 x Nexus Q: 2 Ωper channel/2 amplifier
Ensure all amplifier channels are loaded equally. Limiters engage correctly. Cabinets acoustic
principles are the same.
Bias Q5
Bias Q5
Figure 4.8: 8 x Nexus Q: 2 Ωper channel/2 amplifier

Step 3:
Replace the M8 bolts by hand until finger tight
before using hand tools.
Note: Replacing bolts is of particular
importance as without them there
can be air leakage and detuning.
To avoid damage when making adjustments please note the following:
• Removing the grille can cause debris to collect within the enclosure, take care
to remove anything that may have collected internally
• Do not use impact tools.
5.1 Wheel removal
Figure 5.1: Bolt removal
Step 1:
Remove all four M6 bolts with a 13 mm
spanner/wrench.
Step 2:
Remove/add the wheels and keep in a safe
place. Repeat the process for the other three
wheels.
Figure 5.2: Wheel removal
Figure 5.3: Bolt tightening
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5 Adjustments

Figure 5.4: Bolt removal
Step 1:
Undo all twelve M6 tab bolts using a 4 mm
Allen key, take care NOT to remove the tab
bolts as they may become lost within the
enclosure.
Figure 5.5: Grille removal
Step 2:
Remove grille.
Step 3:
Replace the M6 bolts by hand until finger tight
before using hand tools.
Figure 5.6: Bolt replacement
5.2 Grille removal
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5 Adjustments

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6 Service
Void Nexus Q loudspeakers should only be serviced by a fully-trained technician.
No user serviceable parts inside. Refer servicing to your dealer.
6.1 Return authorisation
Before returning your faulty product for repair, please remember to get an R.A.N. (Return
Authorisation Number) from the Void dealer who supplied the system to you. Your dealer will
handle the necessary paperwork and repair. Failure to go through this return authorisation
procedure could delay the repair of your product.
Note that your dealer will need to see a copy of your sales receipt as proof of purchase so
please have this to hand when applying for return authorisation.
6.2 Shipping and packing considerations
• When sending a Void Nexus Q loudspeaker to an authorised service centre, please write a
detailed description of the fault and list any other equipment used in conjunction with the
faulty product.
• Accessories will not be required. Do not send the instruction manual, cables or any other
hardware unless your dealer asks you to.
• Pack your unit in the original factory packaging if possible. Include a note of the fault
description with the product. Do not send it separately.
• Ensure safe transportation of your unit to the authorised service centre.

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7 Appendix
Architectural specifications
The loudspeaker shall be an active manifold horn loaded sub system consisting of four high
power 12” (300 mm), long excursion, low frequency (LF) transducers mounted in a square
enclosure with a rear port in a newly developed pressure gradient arrangement.
Each low frequency transducer shall be constructed on a cast aluminium frame, with a treated
paper cone, 101.6 (4”) voice coil, wound with copper wires on a high quality voice coil former
for high power handling and long-term reliability.
Performance specifications for a typical production unit shall be as follows: the usable
bandwidth shall be 60 Hz to 150 Hz (±3 dB) and shall have a maximum SPL of 151 dB peak
(145 dB continuous) measured at 1 m using IEC268-5 pink noise. Power handling shall be 2
x 2000 W AES at a rated impedance of 2 x 4 Ω. Pressure sensitivity shall be 110 dB measured
at 1W/1m. The system shall be powered by its own dedicated power amplification module
with DSP management. The wiring connection shall be via two Neutrik speakON™ NL4 (one
for input and one for loop-out to another speaker), to allow for pre-wiring of the connector
before installation.
The enclosure shall be constructed from a 18 mm multi-laminate birch plywood finished in
textured polyurea and shall contain fixture points for a pressed steel powder coated grille to
protect the front chamber from object ingress. It shall have ten handles (four per side and two
on the back face) for ecient manual handling - the same as external bracing from machined
aluminium, which is bolted into the horn mouth using M8 stainless steel bolts.
The chamber of the loudspeaker shall incorporate a revolutionary, view through, shot gun
port for better control over directivity and to reduce port noise at the same time as it also has
cooling purposes, which shall be constructed from glass reinforced plastic in a trapezoidal
shape with a smooth cellulose finish of any RAL colour. External dimensions of (H) 754 mm x
(W) 738 mm x (D) 860 mm (29.7” x 29” x 33.9”). Weight shall be 130 kg (286.6 lbs).
The loudspeaker shall be the Void Acoustics Nexus Q.

voidacoustics.com
NORTH AMERICA
Void Acoustics North America
Call: [phone]
Email: [email protected]
HEAD OFFICE
Void Acoustics Research Ltd,
Unit 15, Dawkins Road Industrial Estate,
Poole, Dorset,
BH15 4JY
United Kingdom
Call: [phone]
Email: [email protected]
Void Acoustics Research Limited is a company registered in England and Wales registration number 07533536