RCF MQ 50i Manual de usuario
USER MANUAL
MANUALE D’USO
BEDIENUNGSANLEITUNG
MQ 50i WALL FLUSH-MOUNTING
CONTROLLED DIRECTIVITY
MONITOR LOUDSPEAKERS
DIFFUSORI MONITOR
A DIRETTIVITÀ
CONTROLLATA PER
INSTALLAZIONE AD
INCASSO A PARETE
ZWEI-WEGE EINBAU
LAUTSPRECHERSYSTEM
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SAFETY PRECAUTIONS
IMPORTANT NOTES
WARNING
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
loudspeaker to rain or humidity and dust, but the case this has been expressly
designed and made to get a suitable IP protection grade (indicated in the
product specifications).
SAFETY PRECAUTIONS
1. All the precautions, in particular the safety ones, must be read with special
attention, as they provide important information.
2. Loudspeaker lines (amplifier outputs) can have a sufficiently high voltage
(i.e. 100 V) to involve a risk of electrocution: never install or connect this
loudspeaker when the line is alive.
3. Make sure all connections have been made correctly and the loudspeaker
input voltage (in a constant voltage system) or its impedance is suitable for
the amplifier output.
4. Protect loudspeaker lines from damage; make sure they are positioned in a
way that they cannot be stepped on or crushed by objects.
5. Make sure that no objects or liquids can get into this product, as this may
cause a short circuit.
6. 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 loudspeaker does not function (or works in an anomalous way);
-the cable has been damaged;
-objects or liquids have got into the unit;
-the loudspeaker has been damaged due to heavy impacts / fire.
7. Should the loudspeaker emit any strange odours or smoke, remove it from
the line after having switched the amplifier off.
8. 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 loudspeaker 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
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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.
9. RCF S.p.A. strongly recommends this product is only installed
by professional qualified installers (or specialised firms) who
can ensure a 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.
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 technical specifications in the instruction manual for the maximum
sound pressure the loudspeaker is capable of producing.
12. To ensure a correct musical reproduction, loudspeaker phase is to be
respected (loudspeakers are connected respecting the amplifier polarity).
This is important when loudspeakers are installed adjacent one another, for
instance, in the same room.
13. To prevent inductive effects from causing hum, noise and a bad system
working, loudspeaker lines should not be laid together with other electric
cables (mains), microphone or line level signal cables connected to amplifier
inputs.
14. The loudspeaker cable shall have wires with a suitable section (twisted,
if possible, to reduce inductive effects due to surrounding electro-magnetic
fields) and a sufficient electrical insulation.
OPERATING PRECAUTIONS
-Install this loudspeaker far from any heat source.
-Do not overload this product for extended periods of 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.
-If the speaker is used in particulary cold places, drive it with a low signal for
5-10 minutes before using it at maximum power.
OPERATING PRECAUTIONS
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DESCRIPTION
RCF S.P.A. WOULD LIKE TO THANK YOU FOR HAVING PURCHASED THIS
PRODUCT, WHICH HAS BEEN DESIGNED TO GUARANTEE RELIABILITY
AND HIGH PERFORMANCE.
MQ 50i is a 2 way compact loudspeaker for indoor wall flush-mounting
installation.
Its “bass-reflex” (/ vented) cabinet includes a 5” woofer and a waveguide-
loaded dome tweeter (to ensure a sound correct dispersion over a wide
coverage angle).
It includes a transformer inside for the connection to (100 – 70 V) constant
voltage lines, yet it can also be set to 16 Ω(low impedance connection).
The power / mode selection is made by means of the front panel rotary switch.
Its power is:
a. 30-20-10-5 W (selectable) on 100 V constant voltage line.
b. 15-10-5-2.5 W (selectable) on 70 V constant voltage line.
c. Max. 60 W on low impedance (16 Ω).
Its cabinet is made of high density polystyrene with a painted steel protection
grille.
It can be mounted on a flush-mounting box type “Multibox” (2 modules) by
BTicino® (or equivalent).
It has a rear metallic cover with a cable guide (for installation on plasterboard
or other types of panels).
MQ 50i is available in white only (MQ 50i-W).
WARNING: loudspeaker connections should be only made by qualified and
experienced personnel having the technical know-how or sufficient specific
instructions (to ensure that connections are made correctly) in order to prevent
any electrical danger.
To prevent any risk of electric shock, do not connect loudspeakers when the
amplifier is switched on. Before turning the system on, check all connections
and make sure there are no accidental short circuits. The entire sound system
shall be designed and installed in compliance with the current local laws and
regulations regarding electrical systems.
CONNECTION AND PRESETTING
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POWER ROTARY SWITCH
The input terminal is on the printed circuit board, close to the transformer.
Connect the line positive wire (coming from the amplifier output usually
marked “100 V”, “+” or “a”) to the “+” loudspeaker terminal.
Connect the line negative wire (coming from the amplifier output usually
marked “0”, “-”, “COM” or “b”) to the “-” loudspeaker terminal.
Fig. 1
NOTES:
uSE aScrEwdrivEr TO TurN ThE rOTary SwiTch;
if ThE SwiTch iS SET TO Off, ThE lOudSpEakEr will bE muTEd.
a. 100 V (OR 70 V) CONSTANT VOLTAGE LINES
Set the rotary switch to the desired power value
(referred to 100 V) among 5 – 10 – 20 – 30 W.
If the line is 70 V (instead of 100 V), the power will be halved
(2.5 – 5 – 10 – 15 W).
b. LOW IMPEDANCE CONNECTION
Set the rotary switch to the 16 Ωposition.
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INSTALLATION NOTES
Loudspeakers are to be installed by qualified personnel, respecting all safety
standards.
Loudspeakers are to be installed securely.
Make sure the supporting structure (i.e. plasterboards / wood panels) has the
necessary mechanical characteristics for the loudspeaker weight, without the
risk of a fall that could damage things or cause an injury.
INSTALLATION ON A FLUSH-MOUNTING BOX TYPE “MULTIBOX”
(2 MOD.) BY BTICINO® (CODE 16102) OR EQUIVALENT
After connecting the loudspeaker (putting the cable through the flush-
mounting box) and setting the desired power value (by means of the front
panel rotary switch), fix the loudspeaker to the box with the 4 screws (as
shown in the drawing) and then add the front grille.
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INSTALLATION WITH THE REAR
METALLIC COVER
Use the (included) rear metallic cover in case of the loudspeaker is to be
installed on plasterboards or other panel types.
NOTE: makE SurE ThErE iS ENOugh rOOm (aT lEaST 90 mm) ON ThE rEar SidE.
1. Make a 163 mm (w) x 228 mm (h) hole in the plasterboard.
2. Connect the loudspeaker and fix it to the rear metallic cover. The cable shall
pass through the rear cover cable guide.
3. Put the 4 screws into the loudspeaker and add (at the screw end) the rear
attachment terminals (at the rest initial position).
4. Insert the loudspeaker into the plasterboard / panel and then screw the 4
screws until the relevant attachment terminals tighten / fix it.
5. Set the power value (through the front panel rotary switch) and then add
the front grille.
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NOTES ABOUT CONSTANT VOLTAGE SYSTEMS
-The loudspeaker input voltage (Vd) shall correspond to the amplifier output
voltage (Va).
-The sum of nominal power values (Pd x n) of all loudspeakers connected to
the line shall not exceed the amplifier power (Pa).
-Make sure all loudspeakers are connected in phase to ensure a correct audio
reproduction.
AMPLIFIER
Pa = Amplifier power
Pd = Speaker power
n = Number of speakers
Vd = Speaker input voltage
Va = Amplifier output voltage
Pa > Pd x n Va
Vd=Va Vd=Va Vd=Va
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ADDITIONAL NOTES
NOTES ABOUT LOW IMPEDANCE CONNECTIONS
-The total loudspeaker impedance must not be lower than the amplifier
output impedance. Note: a loudspeaker total impedance equal to the
amplifier output one permits to get the maximum deliverable power (but an
higher loudspeaker impedance entails less power).
-The total loudspeaker power shall be adequate for the maximum deliverable
power of the amplifier.
-The loudspeaker line shall be short (for long distances, it may be necessary
to use cables with large cross-section wires).
TOTAL IMPEDANCE: 16 Ω
16 Ω
TOTAL IMPEDANCE: 8 Ω
16 Ω
16 Ω
+
+
+
-Always use cables having wires with an adequate cross-section, considering
the cable length and the total loudspeaker power.
-Loudspeaker lines must be kept separated from mains cable, microphone
cables or others, in order to avoid inductive phenomena may cause hum
or noises.
-Use loudspeaker cables having twisted wires to reduce hum caused by
inductive effects due to coupling with electromagnetic fields.
-Do not set the rotary switch to the 16 Ωposition when the loudspeaker is
connected to a (100 – 70 V) constant voltage line.
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SPECIFICATIONS
TYPE
LOUDSPEAKERS
CROSSOVER FREQUENCY
COVERAGE ANGLE
SENSITIVITY
MAX. SOUND PRESSURE
INPUT VOLTAGE
POWER
FREQUENCY RESPONSE
CABINET
DIMENSIONS (W, H, D)
REQUIRED WALL / CEILING
THICKNESS FOR THE INSTALLATION
NET WEIGHT
COLOUR
ACCESSORIES
2 way bass-reflex (vented) for flush-mounting
5” woofer, 0.75” dome tweeter
3 kHz
120° horizontal, 100° vertical
90 dB (1 W, 1 m)
108 dB (60 W)
100 – 70 V
-30-20-10-5 W (100 V)
-15-10-5-2.5 W (70 V)
-max. 60 W (16 Ω)
180 Hz ÷ 20 kHz
high density polystyrene
195 mm, 270 mm
Depth:
-with BTicino® 16102 box 72 mm
-with rear metallic cover 90 mm
min. 10 mm; max. 26 mm
3 kg
white (MQ 50i – W)
rear metallic cover
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