RCF NX-L44A Users Manual
OWNER MANUAL
NX L44-A
PROFESSIONAL ACTIVE
TWO-WAY ARRAY
NX
ENGLISH
LANGUAGE
ENGLISH
ITALIANO
3
10
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1. All the precautions, in particular the safety ones, must be read with special attention, as
they provide important information.
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. Appliance coupler or PowerCon Connector® is used to disconnect device from MAIN
power. This device shall remain readily accessible after the installation.
d. The metallic parts of the unit are earthed through the power cable. This is a Class I
device and for its use it must be connected to a grounded power source.
e. Protect the power cable from damage; make sure it is positioned in a way that it
cannot be stepped on or crushed by objects.
f. 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.
SAFETY
PRECAUTIONS
ENGLISH
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.
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
IMPORTANT
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moved with extreme caution. Sudden stops, excessive pushing force and uneven floors may
cause the assembly to overturn.
ENGLISH
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.
The equipments considered in this manual can be used in electromagnetic
environment E1 to E3 as specified on EN 55103-1/2: 2009.
IMPORTANT NOTES
OPERATING PRECAUTIONS
- 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.
WARNING: To prevent the risk of fire or electric shock, never expose this product to rain
or humidity.
WARNING: The use of these speakers with Stand and Pole Mount accessories can be
done by qualified and experienced personnel only, trained appropriately on professional
systems installations. In any case it’s the user’s final responsibility to ensure the system
safety conditions and avoid any danger or damage to people, animals and objects.
OPERATING
PRECAUTIONS
IMPORTANT NOTES
WARNING
WARNING
WARNING: Using this product with the subwoofer pole-mount, before installing the system,
please verify the allowed configurations and the indications regarding the accessories, on
the RCF website to avoid any danger and damages to people, animals and objects. In any
case, please assure the subwoofer which is holding the speaker is located on an horizontal
floor and without inclinations.
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WARNING
NX L44-A
PRODUCT
INFORMATIONS
ENGLISH
With NXL44-A, RCF provides a unique and powerful two-way line source, with the sound
delivered from three 10” neodymium woofers and a 1.4” driver with 3“ voice coil on a
asymmetrical waveguide.
Everything is perfectly tuned to deliver a remarkably uniform coverage and an extended
frequency range. Precision controlled by an on-board DSP and driven by a two-channel
digital amp, the NXL44-A delivers a very natural sounding response and a high SPL for
professional live sound reinforcement. The horn design is asymmetrical so to project sound
energy with great accuracy, thereby avoiding undesired reflections. The enclosure always
remains vertical - NXL44-A never requires to be tilted or aimed in any way that would
adversely affect its stability.
The NXL44-A woofers are 10” neodymium mid-basses with an excellent linearity, good
efficiency and high power handling capabilities. The 2.5” voice coil combined with a high
strength fiberglass former allows high efficiency and good frequency response extension.
The M-roll surround shape and combined spider design offer good linear displacement and
precise low frequency reproduction.
The NXL 44-A driver is a high performance 3-inch diaphragm with a 1.4-inch exit throat
featuring the smallest size of the art technology. The diaphragm is precision formed from
pure titanium. The voice coil assembly is designed for high temperature and it is joined
to the diaphragm by RCF proprietary Direct Drive technology. Thanks to the large format
compression driver on a wave-guide, the NX L44-A offers superior intelligibility over
distance.
RCF Class-D power amplifiers technology packs huge performance operating with high
efficiency into a lightweight solution. NX amplifiers deliver ultra fast attack, realistic
transient response and impressive audio performance.
The integrated DSP manages crossover, equalisation, soft limiter, compressor and dynamic
bass boost.
The input board presents both XLR/jack balanced inputs, XLR output link, mic/line switch,
volume and a switchable EQ Mode (Flat/Boost).
The amplifier features a solid mechanical aluminium structure which not only stabilizes the
amplifier during transportation but also assists the heat dissipation.
ACTIVE TWO-WAY
ARRAY
LEGENDARY RCF
TRANSDUCERS
DIGITAL AMPLIFIER
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ENGLISH
1
JACK/FEMALE XLR INPUTS (BAL/UNBAL). The system accept jack or XLR
input connectors. These balanced inputs can be used to connect balanced
or unbalanced microphones or audio sources at line level. The balanced
connector is connected in parallel and can be used to send the audio signal to
other amplified speakers, recorders or supplementary amplifiers.
2
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 RED. It is okay if the limit LED blinks occasionally. If the
LED blinks frequently or lights continuously, turn down the signal level.
3
SIGNAL LED. The signal indicator lights green if there is signal present on
the main input.
4
POWER STATUS LED. This green led is ON when the speaker is connected
to the main power supply and the ON/OFF is in ON position.
5
MALE XLR SIGNAL OUTPUT. The output XLR connector provides a loop
trough for speakers daisy chaining.
REAR
PANEL
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2
3
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VOLUME CONTROL. Adjust the amplifier volume. This control does not
affect the “Link” - “Input - Link” output level.
7
SET THE FLAT OR BOOST EQUALIZATION. “Boost” equalization is a loudness
recommended for background music applications, when the system plays at a low
level or when two systems are coupled.
For all other applications “Flat” equalisation is recommended.
8
INPUT SENSITIVITY SWITCH. Position the switch in LINE to use a line level
source (0 dB) or MIC to use a microphone source.
9
POWERCON INPUT SOCKET. AC POWERCON input connection and output
connection.
FUSE CARRIER. Mains fuse housing.
10
POWER MAIN SWITCH. The power switch turns the AC power ON and OFF.
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The XLR connectors
use the following AES standard:
PIN 1 = GROUND (SHIELD)
PIN 2 = HOT (+)
PIN 3 = COLD (-)
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CONNECTIONS
HOT GND
COLD
BAL. XLR
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