RCF NX M12-A User manual

OWNER MANUAL
NX M12-A
NX M15-A
NX M22-A
NX M25-A
PROFESSIONAL ACTIVE
SPEAKER SYSTEMS

3
ENGLISH
1. All the precautions, in particular the safety ones, must be read with special attention, as
they provide important information.
WARNING: to prevent the risk of fire or electric shock, never expose this product to rain
or humidity.
2. POWER SUPPLY FROM MAINS
a. The mains voltage is sufficiently high to involve a risk of electrocution; install and
connect this product before plugging it in.
b. Before powering up, make sure that all the connections have been made correctly and
the voltage of your mains corresponds to the voltage shown on the rating plate on the
unit, if not, please contact your RCF dealer.
c. This unit is CLASS I construction, so it must be connected to a MAIN socket outlet with
a protective earthing connection.
d. Protect the power cable from damage; make sure it is positioned in a way that it
cannot be stepped on or crushed by objects.
e. To prevent the risk of electric shock, never open this product: there are no parts inside
that the user needs to access.
3. Make sure that no objects or liquids can get into this product, as this may cause a short
circuit.
This apparatus shall not be exposed to dripping or splashing. No objects filled with liquid,
such as vases, shall be placed on this apparatus. No naked sources (such as lighted candles)
should be placed on this apparatus.
4. Never attempt to carry out any operations, modifications or repairs that are not expressly
described in this manual.
Contact your authorized service centre or qualified personnel should any of the following
occur:
- The product does not function (or functions in an anomalous way).
- The power cable has been damaged.
- Objects or liquids have got in the unit.
- The product has been subject to a heavy impact.
5. If this product is not used for a long period, disconnect the power cable.
6. If this product begins emitting any strange odours or smoke, switch it off immediately
and disconnect the power cable.
7. Do not connect this product to any equipment or accessories not foreseen.
For suspended installation, only use the dedicated anchoring points and do not try to hang
this product by using elements that are unsuitable or not specific for this purpose. Also
check the suitability of the support surface to which the product is anchored (wall, ceiling,
structure, etc.), and the components used for attachment (screw anchors, screws, brackets
not supplied by RCF etc.), which must guarantee the security of the system / installation
over time, also considering, for example, the mechanical vibrations normally generated by
transducers.
To prevent the risk of falling equipment, do not stack multiple units of this product unless
this possibility is specified in the user manual.
8. RCF S.p.A. strongly recommends this product is only installed by professional
qualified installers (or specialised firms) who can ensure correct installation
and certify it according to the regulations in force.
The entire audio system must comply with the current standards and regulations
regarding electrical systems.
SAFETY
PRECAUTIONS
IMPORTANT
WARNING

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9. Supports and trolleys
The equipment should be only used on trolleys or supports, where necessary, that are
recommended by the manufacturer. The equipment / support / trolley assembly must be
moved with extreme caution. Sudden stops, excessive pushing force and uneven floors may
cause the assembly to overturn.
10. There are numerous mechanical and electrical factors to be considered when installing
a professional audio system (in addition to those which are strictly acoustic, such as sound
pressure, angles of coverage, frequency response, etc.).
11. Hearing loss
Exposure to high sound levels can cause permanent hearing loss.The acoustic pressure level
that leads to hearing loss is different from person to person and depends on the duration
of exposure. To prevent potentially dangerous exposure to high levels of acoustic pressure,
anyone who is exposed to these levels should use adequate protection devices. When a
transducer capable of producing high sound levels is being used, it is therefore necessary
to wear ear plugs or protective earphones. See the manual technical specifications to know
the maximum sound pressure level.
IMPORTANT NOTES
To prevent the occurrence of noise on line signal cables, use screened cables only and avoid
putting them close to:
- Equipment that produces high-intensity electromagnetic fields.
- Power cables.
- Loudspeaker lines.
- Place this product far from any heat sources and always ensure an adequate air
circulation around it.
- Do not overload this product for a long time.
- Never force the control elements (keys, knobs, etc. ).
- Do not use solvents, alcohol, benzene or other volatile substances for cleaning the
external parts of this product.
IMPORTANT NOTES
Before connecting and using this product, please read this instruction manual carefully and
keep it on hand for future reference. The manual is to be considered an integral part of
this product and must accompany it when it changes ownership as a reference for correct
installation and use as well as for the safety precautions. RCF S.p.A. will not assume any
responsibility for the incorrect installation and / or use of this product.
OPERATING
PRECAUTIONS
IMPORTANT NOTES
IMPORTANT NOTES

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ENGLISH
COMPONENTS
NX SERIES
TOURING AUDIO SOLUTIONS
AMPLIFIERS
CABINETS
The NX Series - a new line of active loudspeakers specifically designed to be the everyday
tool for rental companies and professional musicians. With its ultra compact design and
choice of formats, together with high output levels, NX Series is the answer to a wide
variety of production requirements. The NX is reliable, easy to use and versatile: for every
rental company, musician, venue and audio/visual provider, this high-performance self-
powered speaker system offers a degree of simplicity unmatched by traditional amp and
speaker PA systems.
NX Series is a practical solution for high intelligibility speech and audio applications,covering
infill or delay, production studios, presentations and high power music sound reinforcement
with or without subwoofers. A key requirement for everyday audio systems, delivering
simple ‘plug and play’ solutions, without compromising performance and portability.
Legendary RCF transducer technology coupled with state of the art digital amplification
topology resulting in a perfectly optimised loudspeaker series.
The NX Series provides high end audio coverage even at extreme sound pressure levels,
unmatched reliability and acoustic compatibility across the whole series.
The NX Series offers a wide range of practical mounting hardware, to cover all aspects of
system integration,which assist in the overall simple and effortless system set-up,redefining
the high performance portable PA.
All the transducers in the NX Series speakers feature light weight neodymium magnets in
order to guarantee a better performance and make for easier transportation.
All Compression drivers and Transducers are precision built taking advantage of RCF’s
superior moulding, assembly technologies and a wealth of professional knowledge and
experience dedicated to achieving extremely high standards.
All NX Series two-way speakers are equipped with a new generation of 750 Watt Digital
Amplifiers, 500 Watt for the woofers and 250 Watt for the compression drivers. The result
of this is very high output, extremely low distortion and an incredible natural sound.
Each amplifier presents both XLR/jack (Combo) balanced inputs, XLR output link, volume,
EQ Mode (Flat/Boost), a special stage monitoring equalisation set up.
The amplifier features a solid mechanical aluminium structure which not only stabilize the
amplifier during transportation but also assist in the heat dissipation.
All the NX Series amplifiers presents PFC power supply section in order to produce maximum
output even in case of tension drops from main supply.
The NXM two-way system cabinets are manufactured in Baltic birch plywood and are
designed to dampen down vibrations even at maximum volume settings. The reflex porting
has been resized to offer a better efficiency. All models have 2 ergonomically designed
forged aluminium handles with rubber handgrip on the side. At the bottom a rugged steel
pole mount has been installed in all models.
The new cabinet shape will allow every NXM model to be used in the standard configuration
as well as in stage monitor mode. Six fly-track inserts are provided for various rental and
installation applications.
PRODUCT
INFORMATIONS

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REAR
PANEL
9
8
1
6
7
11
10
2
3
4
5
JACK/FEMALE XLR INPUTS (BAL/UNBAL). The system accept jack or XLR
input connectors.
LIMITER LED. The amplifier has a built in limiter circuit to prevent clipping of
the amplifiers or overdriving the transducers.When the soft clipping circuit is active
the LED blinks orange. It is okay if the limit LED blinks occasionally. If the LED blinks
frequently or lights continuously, turn down the signal level.
SIGNAL LED. The signal indicator lights green if there is signal present on the
main XLR input.
STATUS LED. The status indicator flash if the temperature protection is
active.
POWER LED. This green led is ON when the speaker is connected to the
main power supply and the ON/OFF is in ON position.
MALE XLR SIGNAL OUTPUT. The output XLR connector provides a loop
trough for speakers daisy chaining.
VOLUME CONTROL.Adjust the amplifier volume.
FLOOR/SIDE SWITCH. Set a specific equalisation for stage monitor position or
in case of two speaker “side to side” (reduction of mid-lows and improvement of
vocal clarity).
CONTOUR SWITCH. Set the flat or shaped equalization.“Contour” equalization
is a loudness recommended for background music applications, when the
system plays at a low level. For all other applications normal flat equalisation is
recommended.
NEUTRIK POWERCON AC IN-OUT SOCKET. In-Out AC Powercon Sockets.
POWER MAIN SWITCH.The power switch turns the AC power ON and OFF.
1
2
3
4
5
6
7
8
9
10
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BEFORE TURNING ON
THE SPEAKER
HOT GND
COLD
CONNECTIONS
The XLR connectors use the following AES standard:
PIN 1 = GROUND (SHIELD)
PIN 2 = HOT (+)
PIN 3 = COLD (-)
On the back panel you will find all the controls, the signal and current inputs. At first verify
that the voltage selector on the speaker is in proper position for your country (115 Volt or
230 Volt).
The switch shall be in proper position (unless moved from unauthorized people), but a
fast check will avoid problems. In case is necessary to change the voltage please call your
vendor or authorized RCF SERVICE CENTRE. This operation require the substitution of the
fuse value and is reserved to an RCF SERVICE CENTRE.
At this point you can connect the power supply cable and the signal cable, but before
turning on the speaker make sure that the volume control is at the minimum level (even
on the mixer output). It is important that the mixer is already ON before turning on the
speaker. This will avoid damage to the speakers and noisy “bumps” due to turning on parts
on the audio chain. It is a good practice to always turn on speakers at last and turn them
off immediately after the show.
Now you can turn ON the speaker and adjust the volume control to a proper level.
BEFORE CONNECTING
THE SPEAKER
A 35 mm socket for mounting the loudspeaker on a speaker stand is provided in the bottom
of the cabinet.
NX speakers MUST be suspended only with approved rigging hardware. In any case always
use at least 2 M10 threaded inserts on opposite sides of the cabinet.
WARNING: Never suspend NX speakers by there handles. Handles are intended for
transportation, not for rigging.
NX Series active speakers are equipped with a complete system of protection circuits. Two
led on the amplifier back panel indicate the working status of the amplifier: the green led
indicate that the speaker is ON and the red led is on when the protection circuit is active.
The circuit is acting very gently on audio signal, controlling level and maintaining distortion
at acceptable level. If this led is ON for a long period is better to reduce immediately the
signal level from the mixer or from the speaker volume control.
230 Volt, 50 Hz SETUP: FUSE VALUE T10 AL 250 V
115 Volt, 60 Hz SETUP: FUSE VALUE T5 AL 250 V
INSTALLATION
WARNING
PROTECTIONS
VOLTAGE SETUP
(RESERVED TO THE RCF SERVICE CENTRE)

18
SPECIFICATIONS µ
÷
±
ACOUSTICAL
Frequency response
Max SPL
Horizontal Coverage
Vertical Coverage
Crossover Point
TRANSDUCERS
Low frequency
High frequency
AMPLIFIER
Total power supply
Low section
High section
CONNECTIONS
Signal Input/Output
Power Input
INPUT
MECHANICAL
Dimensions (w, h, d)
Weight
Colour
Combo Jack-XLR male / XLR female
Powercon In-Out AC socket
DSP processing, 2 way Equalisation, crossover filtering
Fast limiter, RMS limiter
Contour Switch, Floor Monitor/Side Switch
50 Hz - 20 kHz
129 db
90°
40°
1.700
12”, 3”v.c.
1”, 1.7” v.c.
750 Watt
500 Watt
250 Watt
646x385x375
26 Kg
Black
NX M12-A
50 Hz - 20 kHz
131 db
90°
40°
1.300
12”, 3.0”v.c.
2”neo 2.5” v.c.
750 Watt
500 Watt
250 Watt
736x430x395
27 Kg
Black
NX M22-A
50 Hz - 20 kHz
130 db
90°
40°
1.700
15”, 3.0”v.c.
1”, 1.7” v.c.
750 Watt
500 Watt
250 Watt
736x430x395
29.5 Kg
Black
NX M15-A
50 Hz - 20 kHz
133 db
90°
40°
1.100
15”, 3.0”v.c.
2”neo 3.0” v.c.
750 Watt
500 Watt
250 Watt
736x430x395
31 Kg
Black
NX M25-A

10307303 Rev B
HEADQUARTERS:
RCF S.p.A. Italy
tel. [phone]
e-mail: [e-mail]
RCF UK
tel. [phone]
Int. [phone]
e-mail: [e-mail]
RCF France
tel. [phone]
e-mail: [e-mail]
RCF Germany
tel. [phone]
e-mail: [e-mail]
RCF Spain
tel. [phone]
e-mail: [e-mail]
RCF Belgium
tel. +32 (0) 3 - 3268104
e-mail: [e-mail]
RCF USA Inc.
tel. [phone]
e-mail: [email protected]
www.rcf.it
www.maxlight.ru