EM Acoustics EMS-126 User manual

EMS-126 / 129
two-way passive fullrange loudspeaker
Product User Manual
v2 November 2019
LOUDSPEAKERS REDEFINED

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Contents
DECLARATION OF CONFORMITY ................................................................................................................4!
1.0 - Introduction .............................................................................................................................................5!
Unpacking.......................................................................................................................................................5!
2.0 – EMS-129/126 & Accessories.............................................................................................................6!
EMS-129 .........................................................................................................................................................6!
EMS-126 .........................................................................................................................................................6!
FC-129h..........................................................................................................................................................7!
FC-129v ..........................................................................................................................................................7!
DFB-129 .........................................................................................................................................................7!
VFA-129 .........................................................................................................................................................7!
2.1 – Rotating the HF waveguide..........................................................................................................8!
3.0 – Simulation.................................................................................................................................................9!
Ease Focus 3 ................................................................................................................................................. 9!
4.0 - Safety Considerations....................................................................................................................... 10!
General Considerations in use............................................................................................................. 10!
Personal Injury...................................................................................................................................... 10!
Stand Mounting.................................................................................................................................... 10!
Ground Stacking................................................................................................................................... 11!
Rigging and Suspension.................................................................................................................... 11!
Secondary Safeties.................................................................................................................................. 12!
Safety Inspections................................................................................................................................... 12!
Material Damage from Magnetism ................................................................................................ 12!
5.0 – Rigging & Mounting Options .......................................................................................................... 13!
5.1 – EMS-129 Cabinet Overview ....................................................................................................... 13!
5.2 – Using the FC-129v......................................................................................................................... 14!
5.3 – Using the FC-129h ........................................................................................................................ 15!
5.3.1 – Drop height adjustment on the FC-129h...................................................................... 15!
5.4 – Using the DFB-129........................................................................................................................ 16!
5.5 – Using the VFA-129........................................................................................................................ 17!
5.6 – Safety Point ..................................................................................................................................... 17!
5.7 – Using Powerdrive or Omnimount fittings ............................................................................. 18!
6.0 – Powering the System........................................................................................................................ 19!

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6.1 - Amplifier and Processing Requirements............................................................................... 19!
6.1.1 - Connections............................................................................................................................. 19!
6.1.3 – Amplifier Requirements ...................................................................................................... 20!
6.1.4 – Processing Requirements................................................................................................... 20!
6.2 - Presets and Settings .................................................................................................................... 21!
6.2.1 – Standard EMS-129 Preset.................................................................................................. 21!
6.2.2 - Geometric Delay..................................................................................................................... 21!
6.2.3 - Applying EQ.............................................................................................................................. 21!
6.3 - Use with the DQ Series Advanced System Amplifiers ..................................................... 22!
6.3.1 - Connections............................................................................................................................. 22!
6.3.2 - Preset Recall............................................................................................................................ 22!
6.4 - System Connectivity..................................................................................................................... 23!
6.4.1 - Cable Length and Specification........................................................................................ 23!
6.4.2 – Crossover Cable Use ............................................................................................................. 23!
7.0 – Servicing Information........................................................................................................................ 24!
7.1 – EMS-129: Removing the grille ................................................................................................. 24!
7.2 – EMS-129: Removing the LF drive unit.................................................................................. 25!
7.3 – EMS-129: Removing the HF drive unit ................................................................................. 26!
Appendix A – Technical Specifications.................................................................................................. 27!
EMS-129 compact passive loudspeaker .......................................................................................... 27!
Appendix B – Technical Drawings ........................................................................................................... 28!
Appendix C – Spare Parts List ................................................................................................................... 33!
Appendix D – Warranty Information ....................................................................................................... 34!
Limited Warranty ................................................................................................................................. 34!
Warranty Coverage ............................................................................................................................. 34!
Returning your EM Acoustics loudspeaker................................................................................. 34!

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DECLARATION OF CONFORMITY
The products contained within this manual conform to the
requirements of the EMC Directive 89/336/EEC, amended by
92/31/EEC and to the requirements of the Low Voltage Directive
73/23/EEC amended by 93/68/EEC.
EMC Emission EN55103-1:1996
Immunity EN55103-2:1996
Electrical Safety EN60065:1993
RECYCLING
This product and its packaging constitute the applicable product according
to the WEEE directive. Please ensure that at the end of the working life of
this product, it is disposed of sensibly in accordance with local and national
recycling regulations. The packaging supplied with this product is
recyclable. Please retain all packaging, however if disposing of this
packaging please ensure that you comply with local recycling regulations.
These products also all comply to the RoHS Directive 2002/95/EC.

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1.0 - Introduction
Thank you for purchasing this highly acclaimed product from EM Acoustics. The EMS-126
and EMS-129 are identical loudspeakers except for their dispersion angles – as such
throughout this manual when we refer to the EMS-129, we mean either the EMS-126 or
EMS-129. This product has been designed and rigorously tested to give you the utmost in
sonic performance and many years of reliable, trouble-free operation. Please take the time
to read this user manual thoroughly to ensure you get the best performance from your
system and to ensure you set it up correctly and safely. If you have any questions or are
in any doubt whatsoever about any aspect of your new product, please do not hesitate to
contact us directly or your local EM Acoustics representative.
The EMS-129 is a compact 2-way loudspeaker, intended for a wide variety of audio
applications – from theatrical use through to corporate A/V, speech reinforcement and even
medium scale live music reinforcecment. The compact enclosure houses a 12” neodymium
LF drive unit and a 1.4” exit HF compression drive unit coupled to a rotatable constant
coverage waveguide - 90° x 60° for the EMS-129, and 60° x 40° for the EMS-126. These
two drive units are linked with an extremely comprehensive passive crossover network.
This means the EMS-129 exhibits flat frequency and phase responses without the need
of external corrective processing.
This manual contains all the information you should need on topics of set up, amplifier
connection and basic service. If you feel we have missed anything, or you have a question
not covered by this manual, please visit our website www.emacoustics.co.uk and send us
a message or give us a call – we’re only too happy to help.
Unpacking
Please take care when unpacking your loudspeaker system. Once unpacked, please inspect
each enclosure thoroughly for any transit damage and in the case of any damage please
notify your carrier immediately. It is the responsibility of you, the consignee, to instigate
any claim. Please retain all original packaging in case of future re-shipment.

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2.0 – EMS-129/126 & Accessories
FEATURES & BENEFITS
•Signature EM Acoustics “maximum headroom” design approach ensures
consistency of performance regardless of SPL level.
•Multiple M10 threaded flying points for temporary and permanent
installation.
•Enclosure coated with 3-step polyurethane process - ensuring the cabinets
are not only weather resistant but more resilient to impact damage.
•Various rigging accessories available.
•Multi-angle enclosure allows use as a monitor as well as FOH.
•Connections on NL4.
•Single amplifier channel required.
KEY SPECIFICATIONS
!
ENCLOSURE TYPE:
DRIVE UNITS:
FREQUENCY RESPONSE:
NOMINAL DISPERSION1:
MAXIMUM SPL:
NOMINAL IMPEDANCE:
DIMENSIONS (HxWxD):
NET/SHIPPING WEIGHT:
!
!
2-way passive, reflex loaded
LF: 12” / HF: 1.4”
70Hz – 20kHz +/-3dB
90° x 60° rotatable
128dB continuous, 134dB peak
8 ohms
622 (24.5) x 380 (15) x 364 (14.3) mm/(ins)
24/26.6kg (52.8/58.5lbs)
EMS-129
Wide dispersion passive loudspeaker
FEATURES & BENEFITS
•Signature EM Acoustics “maximum headroom” design approach ensures
consistency of performance regardless of SPL level.
•Multiple M10 threaded flying points for temporary and permanent
installation.
•Enclosure coated with 3-step polyurethane process - ensuring the cabinets
are not only weather resistant but more resilient to impact damage.
•Various rigging accessories available.
•Multi-angle enclosure allows use as a monitor as well as FOH.
•Connections on NL4.
•Single amplifier channel required.
KEY SPECIFICATIONS
!
ENCLOSURE TYPE:
DRIVE UNITS:
FREQUENCY RESPONSE:
NOMINAL DISPERSION1:
MAXIMUM SPL:
NOMINAL IMPEDANCE:
DIMENSIONS (HxWxD):
NET/SHIPPING WEIGHT:
!
!
2-way passive, reflex loaded
LF: 12” / HF: 1.4”
70Hz – 20kHz +/-3dB
60° x 40° rotatable
128dB continuous, 134dB peak
8 ohms
622 (24.5) x 380 (15) x 364 (14.3) mm/(ins)
25/27.5kg (55/60.5lbs)
EMS-126
Narrow dispersion passive loudspeaker

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FC-129h
Horizontal flying cradle
The FC-129h is a simple and effective means of mounting the EMS-129 in both
temporary and permanent applications.
It is secured to the cabinet by means of M10 socket head bolts into the top and
bottom of the loudspeaker to mount it in a landscape format. Multiple 13mm
diameter holes are provided for attachment in installation or via a hook clamp
or similar.
The FC-129h is designed to support one single EMS-129 loudspeaker.
Weight (including fixings) 4kg / 8.8lbs
FC-129v
Vertical flying cradle
The FC-129v is a simple and effective means of mounting the EMS-129 in both
temporary and permanent applications.
It is secured to the cabinet by means of M10 socket head bolts into the top of
the loudspeaker to mount it in a portrait format. A single 13mm diameter fixing
point is provided at the top of the outer yoke for attachment either in
installations or via a hook clamp or similar.
The FC-129v is designed to support one single EMS-129 loudspeaker.
Weight (including fixings) 6kg / 13.2lbs
DFB-129
Dual enclosure flyplate set
The DFB-129 is a dual plate set designed to allow the mounting of a pair EMS-
129 in installation applications.
The slots allow adjustment of the splay angle between the two loudspeaker
cabinets.
The DFB-129 set is designed to support one pair of EMS-129 loudspeakers.
Weight (including fixings) 13kg / 28.6lbs
VFA-129
Variable angle flying bracket
The VFA-129 is designed to allow the mounting of a single EMS-129 from a
single point, where the angle is determined by the loudspeakers’ own centre of
gravity.
The mounting part can move between different locations, giving 25 degrees of
up or down tilt in 5-degree increments.
The VFA-129 is designed to support one single EMS-129 loudspeaker.
Weight (including fixings) 2kg / 4.4lbs

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2.1 – Rotating the HF waveguide
The high frequency waveguide of the EMS-129 can be easily rotated to provide
appropriate dispersion in both portrait and landscape formats.
By default, the EMS-129 ships from the factory with the dispersion pattern 90°
horizontal x 60° vertical when the loudspeaker is in a portrait format (60° horizontal x
40° vertical for the EMS-126).
To rotate the waveguide:
1. Follow step 1 in the servicing chapter (Chapter 7) to remove the grille.
2. Using a 4mm Allen key, remove the eight M6x40 countersunk socket head screws
that secure the waveguide.
3. Lift the waveguide up from the enclosure to rotate through 90 degrees to the
desired orientation - the label on the waveguide describes the orientation.
4. Once in the correct orientation, replace the M6x30 countersunk socket screws and
retighten.
5. Replace the grille.
NOTE: Be careful not to over rotate the Waveguide in one particular direction to avoid
over tensioning the cables.
M6x40
countersunk socket screws

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3.0 – Simulation
Ease Focus 3
For acoustic reasons it is advised that users familiarize themselves with Ease Focus 3 – this system
provides the user with accurate simulations for setting up EMS-129 loudspeakers.
Ease Focus 3 can be downloaded for free from the AFMG website at http://focus.afmg.eu and is
currently available as a stand-alone application for Windows (XP or Higher) only. It can also be
downloaded directly from the EM Acoustics website with all the current product files embedded.
Tutorials for Ease Focus 3 are available from with the application itself.
For training on the design and implementation of EMS-129 loudspeakers including the specific use
of Ease Focus 3, please contact your local distributor.

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4.0 - Safety Considerations
General Considerations in use
Loudspeaker systems are potentially dangerous objects if used incorrectly. Please ensure
that you read this section fully, and contact EM Acoustics or your local dealer should you
be in any doubt over correct operation procedures.
Personal Injury
Never stand in the immediate vicinity of loudspeakers when in use at high level.
Professional loudspeaker systems are capable of producing sound pressure levels which
can cause permanent damage to human hearing. Levels in excess of 90dB can cause
hearing damage if people are exposed to them over a long period of time, so care and
attention must be used for both staff and audience members.
When deploying loudspeaker systems on the ground or when flown, please take careful
note of the following important safety considerations:
• Only use accessories and flying hardware supplied or approved by EM Acoustics for
flying or transporting loudspeaker systems. Pay close attention to specific
instructions, especially those considering maximum load capabilities as detailed in
the appropriate user manuals or on the legend labels on the accessories
themselves.
• Ensure all additional accessories, fasteners and secondary safeties are of an
appropriate size, working load limit and safety factor.
• All loudspeakers and accessories should be regularly inspected for signs of wear
and tear, and any damaged parts should be replaced.
• All load bearing parts and assembly bolts on accessories should be regularly
checked to ensure they are tight and not worn.
Stand Mounting
When mounting loudspeakers on a stand, please take note of the following important
considerations:
• Ensure your stand height is locked off and the tripod legs are positioned so as to
be stable.
• Check the weight loading of your stands before attempting to mount the
loudspeaker.
• Do not stack a second loudspeaker on top of the stand-mounted one.
• Ensure cables are run so as to leave enough slack to enable neat wiring, and thus
reduce the risk of the speaker being pulled over. Loose cables should be covered
or taped down wherever possible to reduce trip hazards.
• If stands are being used outdoors, it may be necessary to add ballast to the base
of the stand to prevent it toppling over.
• When using poles on top of subwoofer systems, please observe similar precautions.

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Ground Stacking
• Ensure that the floor or stage surface can withstand the weight of the system.
• Wherever possible, avoid high stacks and use ratchet straps to secure loudspeakers
together. Please also remember that vibrations from subwoofer systems can shake
other loudspeakers out of place, which may present a toppling hazard. The use of
ratchet straps and non-slip material is recommended to prevent this.
Rigging and Suspension
Please see Chapter 5 for further information on the detailed rigging options for your
loudspeaker system.
WARNING: The overhead suspension of loudspeakers is a very serious issue with
potentially lethal consequences should anything go wrong. Rigging should only be
carried out by experienced personnel following safe working practice. Should you be
in any doubt whatsoever, please contact your local dealer who will be able to refer you
to a suitable rigging company.
To ensure the highest standards of safety, the following information on array assembly must be
exactly followed and understood.
Only use EM Acoustics recommended rigging hardware and accessories, which are specifically
designed for the purpose. Do not use these accessories for any other loudspeaker system – the
components are specifically designed to work with this product and are not interchangeable with
any other EM Acoustics loudspeaker product (unless where specifically stated) or any other
loudspeaker system. The use of EM Acoustics accessories with other manufacturers’ systems may
compromise the safety standards and EM Acoustics is in no way liable for any loss, damage or injury
caused by such practice.
Do not modify or alter the EMS-129 loudspeaker or accessories, nor use them in any way other than
that described in this manual. Rigging components supplied with the EMS-129 are in no way
interchangeable and should not be used as such.
The component parts of the EMS-129 and its accessories should only be assembled in the manner
described in this manual, using the fasteners and fixings stated herein. The use of fasteners and
methods of assembly not described in this manual may result in an unsafe assembly and as such
EM Acoustics will not be responsible for any loss, damage or injury caused by such practice. Welding,
drilling or any other means of modifying any part of the flying hardware or permanently fixing
components to each other is strictly forbidden.
Rigging assemblies must only be assembled using the appropriate parts and fixings as described in
this manual, explicitly following the assembly instructions given herein. Rigging components must
only be fixed to the EMS-129 loudspeaker, using the correct cabinet location points, assembly
methods and fasteners specifically described within this manual.
Walls, floors and ceilings must be capable of supporting the actual load placed upon them. The
rigging hardware must be safely and securely fixed to both the loudspeaker system and the
supporting structure.

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Secondary Safeties
It is imperative that all loudspeakers flown in any given environment should be provided with a
second, independent and properly rated safety suspension point in addition to the principle load
bearing means of suspension. Steel wire ropes or steel chains of an approved construction and load
rating only may be used as secondary safeties. Plastic covered steel chains may not be used as
secondary safeties under any circumstances. Also ensure that all local and national laws are
complied with when determining your primary and secondary suspension points.
Safety Inspections
Carefully inspect all flying system components prior to use for defects or signs of damage prior to
installing or mounting your loudspeaker. If any components damaged or you suspect them to be
damaged, DO NOT USE THEM.
Regular scheduled tests – which are much more rigorous than visual inspections – of all rigging
components must also be carried out. Safety legislation, and test/inspection requirements, will vary
from country to country and as such it is the user’s responsibility to ensure that local regulations
are adhered to. In most cases, annual independent tests & inspections carried out by a suitably
approved and qualified inspector will be required.
EM Acoustics recommends detailed logbooks be kept of all inspections and load tests to ensure an
accurate record is kept of the testing for each EM Acoustics rigging accessory.
When flying any loudspeaker system, always wear protective headwear, footwear and eye
protection in accordance with local regulations.
Material Damage from Magnetism
Loudspeakers produce a static magnetic field at all times – even when not in use. Certain
devices are susceptible to external magnetism, and as such a safe distance should be
maintained to prevent damage. It is recommended that a safe distance of 0.5m (1.5ft) is
maintained from loudspeakers when stored, transported and in use, from devices such as
computer hard drives, magnetic media, bank cards to remove the risk of corruption. Larger
distances may be required for some older cathode ray tube displays.

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5.0 – Rigging & Mounting Options
5.1 – EMS-129 Cabinet Overview
[1]
[3]
1
Top/Bottom M10 mounting point
2
Handle
3
Rear M8 safety point
4
Omnimount/Powerdrive attachment point
5
Polemount
[2]
[4]
[5]
[1]
[1]
[1]

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5.2 – Using the FC-129v
The FC-129v is intended to mount the EMS-129 vertically – either using a hook clamp or
similar from above, or a pole mount adapter to mount on a stand yet allowing enclosure
tilt. The procedure for attaching the FC-129v to the loudspeaker is the same regardless
of the mounting orientation.
Firstly, assemble the mounting plate to the inner yoke as per the instructions supplied with
the FC-129v.
Align the FC-129v with the EMS-129 loudspeaker, taking note of the “front” arrow on the
mounting plate.
Using a 6mm Allen key, secure the yoke to the EMS-129 by bolting the mounting plate to
the cabinet using M10x20 socket head bolts, with both spring washers and Form A (flat)
washers. Ensure that the washers are in the correct order – form A (flat) in contact with
the frame, and then the spring washer between the flat washer and the locking handle.
Ensure the mounting plate is secure.
The enclosure can then be lifted and the tilt angle can then be set with the locking handles.
M10x20 socket bolt
M10 spring washer
M10 Form A (flat) washer
“front” arrow
Locking handle

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5.3 – Using the FC-129h
The FC-129h is intended to mount the EMS-129 horizontally. To fit, lie the EMS-129 on
its side and loosen the locking knobs so that the mounting plates can be rotated to allow
access to the mounting bolt holes. Line the flying cradle up with the mounting holes and
secure to the EMS-129 with M10x20 socket head bolts.
Ensure that the washers are in the correct order – form A (flat) in contact with the frame,
and then the spring washer between the flat washer and the locking handle. Tighten the
handles on both sides to lock the desired angle for the EMS-129.
Always ensure that a secondary safety is used when suspending any loudspeaker.
5.3.1 – Drop height adjustment on the FC-129h
Different location holes for the mounts to pivot in are provided on the FC-129h mounting
yoke. Position 1 (closest to the end of the yoke arms) allows full 360° rotation of the
loudspeaker, and positions 2-4 offer a closer fit to the yoke, but with reduced rotational
ability of the loudspeaker itself.
M10 form A (flat) washer
M10 spring washer
Locking handle
M10x20 socket head bolt
Position #1
Position #2
Position #3
Position #4

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5.4 – Using the DFB-129
To use the DFB-129 set, it is advised to position the two loudspeakers on the floor and
secure the top plate as shown – ensuring that the flat and spring washers are both used
on each bolt. Once the desired angle between loudspeakers is achieved, tighten the top
bolts and then turn the assembly over to fit the bottom plate.
M10 x 30 socket cap bolt
M10 spring washer
M10 Form A washer

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5.5 – Using the VFA-129
The VFA-129 is designed to suspend the EMS-129 from a single point, using the centre of
gravity of the loudspeaker to determine the up or down tilt angles. A moveable pickup
point allows setting of the angle in 5-degree increments from +25° to -25°.
Secure the VFA-129 to the top of the EMS-129 using M10x16 hex head bolts, with spring
and Form A (flat) washers. Ensure that both bolts are tight before attempting to lift the
loudspeaker.
The central hole in the spine is for 0-degree flying. The track to the front is for up-tilt, and
the track to the rear is for down-tilt – both in 5-degree increments.
5.6 – Safety Point
Any flown loudspeaker must always have a secondary safety fitted.
A single M8 threaded point is provided on the rear face of the EMS-
129.A simple M8 forged shoulder eyebolt can be screwed into this
point. Safeties should always be arranged so that the loudspeaker
cannot drop in the event of a primary attachment point failing.
NOTE: When using a Powerdrive or Onmidrive bracket, use a
single M10forged shoulder eyebolt in one of the other theaded
points for a safety.
M8 safety point on rear face
M10x16 hex head bolt
M10 spring washer
M10 Form A (flat) washer

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5.7 – Using Powerdrive or Omnimount fittings
EMS-129 loudspeakers are compatible with Powerdrive Series 100 or Omnimount Series
60 installation brackets.
Using a 5mm Allen key, remove the four M8 countersunk socket head bolts on the rear of
the EMS-129. The mounting bracket can then be attached using the bolts supplied with
the bracket – they must be M8 thread, minimum 30mm in length. Ensure flat washers are
in contact with the bracket, and the spring washer is in between the bolt head and the flat
washer.
Omnimount/Powerdrive mounting points
Remove M8 countersunk socket bolts from the rear
Step 1
Step 2
Attach bracket using supplied fixings.
Form A (flat) washer
Spring washer
M8 bolt, minimum 30mm length

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6.0 – Powering the System
The EMS-129 can be powered from any amplifier & DSP combinations with the relevant
high & low pass filter, and limiter settings.However, due to the self-contained nature of
the package, the use of DQ Series advanced system amplifiers is highly recommended. The
use of DQ Series amplifiers provides a neat and flexible system that will encompass all
requirements for the system to function correctly, as well as providing user control for
room EQ and system alignment.
6.1 - Amplifier and Processing Requirements
6.1.1 - Connections
The EMS-129 requires only a single amplifier channel. Inputs to the EMS-129 enclosure
are on Neutrik SpeakON NL4 as illustrated below.
Two-core cable should be used for connecting EMS-129 loudspeakers, and the connections
are as follows:
SpeakON connection 1+ 1- 2+ 2-
Drive unit connection LF + LF - Link Through Link Through

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6.1.3 – Amplifier Requirements
The EMS-129 is a highly efficient loudspeaker, however appropriate available power is
critical to ensure full system headroom. It is good practice to ensure that your amplifier
can deliver at least double the RMS power handling of the loudspeaker to ensure full
headroom, and as such the amplifier requirement is:
Product RMS Power Handling Recommended Min. Amplifier Power
EMS-129 500W @ 8 ohms 1000W @ 8 ohms
A loudspeaker is far more likely to be damaged by an under-powered amplifier working
too hard, than an over-powered amplifier working well within its limits.
All of the DQ Series advanced system amplifiers can be used to power the EMS-129.
The following table shows the maximum number of EMS-129 that can be connected per
channel on the various different amplifiers:
Amplifier Max EMS-129 per channel
DQ6 1
DQ10 2
DQ20 4
6.1.4 – Processing Requirements
Whilst the EMS-129 is a passive loudspeaker and therefore requires no corrective
processing, in all but the lowest SPL applications it does require an active high pass filter
and appropriate limiter settings to avoid damage. If not using DQ Series amplifiers, or the
DSC48 Digital System Controller, then a suitable DSP system must be used in conjunction
with your EMS-129 to prevent damage to the loudspeaker. Check the EM Acoustics
website for the most up-to-date DSP settings for the EMS-129.