STM NEXO M28 User manual
DP7153-01-DI
M28 / M28-I
User manual
TABLE OF CONTENTS
Page 2/ 28 STM-M28 / M28-I
TABLE OF CONTENTS
TABLE OF CONTENTS___________________________________________________________________ 2
WARNINGS ____________________________________________________________________________ 3
EQUIPMENT ___________________________________________________________________________ 4
DESCRIPTION__________________________________________________________________________ 5
PRESET_______________________________________________________________________________ 6
HF DIRECTIVITY________________________________________________________________________ 9
CROSSOVER FREQUENCY______________________________________________________________ 10
ACCESSORIES ________________________________________________________________________ 13
ARRAY EQ____________________________________________________________________________ 21
MAINTENANCE________________________________________________________________________ 22
TECHNICAL SPECIFICATIONS ___________________________________________________________ 26
USER NOTES _________________________________________________________________________ 27
EU Conformity declaration
We,
NEXO SA
ZA DU PRE DE LA DAME JEANNE
60128 PLAILLY –France
Declare under our sole responsibility that the product
Type
Serial number
Loudspeaker
M28 / M28-I
On the product
Is in conformity with the provisions of the following directive
including all applicable amendments:
2014/35/UE (Low Voltage Directive)
Applied rules and standards:
Plailly, June, 2014
EN 12100, EN 13155, EN 62368
Joseph CARCOPINO, R&D Director
WARNINGS
STM-M28 / M28-I Page 3/ 28
WARNINGS
PRECAUTIONS
-repairable part.
If the system seems to be malfunctioning or damaged, stop using it at once and have it repaired by a NEXO qualified technician.
Do not expose the system directly to the sun or to the rain, do not immerse it into fluids, do not place objects filled with liquid on the system. If a
liquid gets into the system, please have it inspected by a NEXO qualified technician.
When flying outdoor systems ensure that the system is not exposed to excessive wind or snow loads and is protected from rainfall.
In case of wind greater than 8 on Beaufort scale (72km/h 45mph), a touring system has to be landed or an additional securing has to be
implanted.
For fixed installations, wind loading has to be taken into account in accordance to the national standards
The connection should be performed by qualified technician, by ensuring that power is off.
Operating temperature with temperate climate: 0°C to +40°C (+32°F to +104); -20°C à +60°C (-4°F to +140°F) for storage.
SAFETY INFORMATIONS
Read this manual before using the speaker.
Keep this manual available for further reference.
Observe all warnings and cautions.
Please check the NEXO Web site nexo-sa.com to get the most up-to-date version of this manual.
Ensure you are aware of the safety rules applying to rigging, stacking or installing on tripod or speaker stand. Failure to observe these rules may
expose persons to potential wounds or even death.
Only use the system with accessories specified by NEXO.
Please always consult a NEXO-accredited technician if the installation needs architectural works and observe following precautions:
Mounting Precautions:
- Please select screws and mounting location supporting 4 times the system weight.
- Do not expose the system to excessive dust, vibrations, to extreme cold or hot temperatures, to reduce the risk of damaging components.
- Do not place the system in an unstable position: it could fall accidentally.
- Do
not move the tripod with the system in position.
Connection and Powering Precautions:
- Unplug connected cables before moving the system.
- Power off the system before connecting the system.
- When switching on the installation, the amplifier must be powered last; when switching the installation off, shut off the amplifier first.
- If you work by cold temperatures, progressively raise the level to nominal value during the first minutes of use, to allow the system
components to stabilize.
Please check regularly the system condition.
HIGH SOUND PRESSURE LEVELS
Exposure to very high sound pressure levels may cause permanent hearing losses. Degrees of hearing losses may be different from one person to
another, but almost everybody will be affected if exposed to high sound pressure levels during a long period of time. The OSHA (Occupational
Safety and Health Administration) American Agency specified the following maximal exposures:
Number of Hours
Sound Pressure Level (dBA),
Slow Response
8
90
6
92
4
95
3
97
2
100
1 ½
102
1
105
½
110
¼ or less
115
WASTE OF ELECTRIC OR ELECTRONIC EQUIPMENT
This symbol on the product or its packaging indicates that this product must not be treated as household waste. Instead, it is
your responsibility to hand it over to a designated collection point for the recycling of waste electrical and electronic equipment.
By ensuring your waste equipment is recycled, you will help prevent potential negative consequences for the environment and
human health, which could appear if this product was not recycled. Recycling helps spare natural resources. For more
information about the recycling of this product, please contact your local city office, your household waste disposal service or
your reseller.
EQUIPMENT
Page 4/ 28 STM-M28 / M28-I
EQUIPMENT
M28
REDLockTM handle locks front rigging points from rear of cabinet.
CompassRigTM allows pre-setting of inter-cabinet angle value between M28 modules, from 0.2° to 15°.
M28-I
RIGAV Fix, front rigging points
CompassRigTM Fix (STI-M28CMP) allows pre-setting of inter-cabinet angle value between M28 modules, from 0.2° to 15°.
DESCRIPTION
STM-M28 / M28-I Page 5/ 28
DESCRIPTION
→The M28 is a compact full-range 2 ways speaker.
→M28 can be used alone or with STM-M46, STM-B112, STM-S118, MSUB18
→Versions:
•STM-M28-120: Touring application, 120° horizontal coverage
•STM-M28-90: Touring application, 90° horizontal coverage
•STM-M28-120-I: Fix installation, 120° horizontal coverage
•STM-M28-90-I: Fix installation, 90° horizontal coverage
→The speaker is equipped with two Speakon NL4 connectors, with parallel-wired pins.
•LF (1+/1-) Red/Black
•HF (2+/2-) Orange/Grey
→IP54 with STI-IPCOV28.
→Amplification
•The M28 speakers must be used with a NEXO processor to handle EQ, phase alignment, crossover and
excursion/thermal protection for the system loudspeaker.
•The following table shows the number of M28 speakers and S118 or MSB18 subwoofers usable with each solution.
NXAMP4x1MK2 (bridged)
NXAMP4x2MK2
NXAMP4x4MK2
M28
3 in parallel on 2 channels
S118
3 in parallel on 2 channels
MSUB18
1 per channel
1 per channel
Up to 2 per channel
Recommended
PRESET
Page 6/ 28 STM-M28 / M28-I
PRESET
Please consult nexo-sa.com for NEXO TD Controllers firmware information.
For M28, the following setups are available:
•Preset HF Main for 1x M28, 900 Hz 20 kHz.
•Preset HF Main for 2 or 3 M28, 900 Hz 20 kHz.
•Preset HF Main for 4 to 6 M28, 900 Hz 20 kHz.
•Preset HF Main for more than 6 M28, 900 Hz 20 kHz.
•Preset LF Main, 60 Hz 900 Hz.
•Preset LF Main, 85 Hz 900 Hz.
•Preset LF Main, 120 Hz 900 Hz.
•Preset LF Main, 180 Hz 900 Hz.
•Preset HF Downfil, 900 Hz 20 kHz.
•Preset LF Downfil, 120 Hz 900 Hz.
•Preset LF Downfil, 180 Hz 900 Hz.
M28
PRESET
STM-M28 / M28-I Page 7/ 28
M28 + B112
M28 + S118
PRESET
Page 8/ 28 STM-M28 / M28-I
M28 + MSUB18
HF DIRECTIVITY
STM-M28 / M28-I Page 9/ 28
HF DIRECTIVITY
It is possible to change the horizontal HF directivity of M28
120° to 90° with STT-FLG28090
CROSSOVER FREQUENCY
Page 10 / 28 STM-M28 / M28-I
90° to 120° with STT-FLG28120
CROSSOVER FREQUENCY
→60 Hz: Full range application.
→85, 120, 180 Hz: Use with MSUB18 / S118.
This manual suits for next models
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