RCF DU 31 Manuale utente
OWNER MANUAL
MANUALE D’USO
DU 31 WALL FLUSH MOUNT
LOUDSPEAKER
DIFFUSORE DA INCASSO
A PARETE
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DU 31AT WALL FLUSH MOUNT
LOUDSPEAKER WITH
POWER SELECTOR
DIFFUSORE DA INCASSO
A PARETE CON
SELETTORE DI POTENZAE
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A 1331 REAR COVER
WITH ACCESSORIES
FOR DU 31 / DU 31AT
COPERCHIO POSTERIORE
CON ACCESSORI
PER DU 31 / DU 31AT
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INDEX
INDICE
ENGLISH
SAFETY PRECAUTIONS
DESCRIPTION
INSTALLATION
CONNECTION
SPECIFICATIONS
ITALIANO
AVVERTENZE PER LA SICUREZZA
DESCRIZIONE
INSTALLAZIONE
COLLEGAMENTO
DATI TECNICI
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IMPORTANT NOTES
SAFETY
PRECAUTIONS
IMPORTANT NOTES
Before connecting and using this product, please read this instruction manual
carefully and keep it on hand for future reference. This 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.
SAFETY AND OPERATING 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. 100-70 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 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 or fire.
7. Should the loudspeaker emit any strange odours or smoke, remove it from
the line after having immediately 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
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.
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ENGLISH
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
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 sound 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. Refer to local regulations since
there may be additional requirements about cable characteristics.
15. Install this loudspeaker far from any heat source.
16. Do not use solvents, alcohol, benzene or other volatile substances for
cleaning the external parts of this product.
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ENGLISH
RCF S.P.A. THANKS YOU FOR PURCHASING THIS PRODUCT, WHICH
HAS BEEN DESIGNED TO GUARANTEE RELIABILITY AND HIGH
PERFORMANCE.
DU 31
Wall flush mount 2 way loudspeaker, suitable for paging and background
music.
DU 31AT
DU 31 loudspeaker with a power selector on the front.
A 1331
Rear cover for DU 31 / DU 31AT with accessories for either wall surface
mount (single or dual) or desk-top use.
DESCRIPTION
WARNING
INSTALLATION
WARNING: The loudspeaker is to be installed by qualified personnel,
respecting all safety standards.
The loudspeaker must be installed securely, making sure the support structure
(walls / ceilings) has the necessary mechanical characteristics for the
loudspeaker weight, without the risk of a fall that could damage things or
cause an injury.
Use attachment elements suitable for walls / ceilings (e.g. screw anchors for
bricks, screw anchors for concrete, etc.).
FLUSH BOX MOUNT
DU 31 / DU 31AT loudspeaker can be directly mounted into a flush box for
electrical systems (picture 1), BTICINO® 16205 type or equivalent, having
the following dimensions:
154 x 130 x 69 mm (internal) e 170 x 145 x 70 mm (external).
PICTURE 1
DU 31AT - POWER SELECTOR
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The loudspeaker can be fixed through the 4 screws of the box, drilling the
loudspeaker in its corners (corresponding to the box holes, see picture 2).
A 1331 REAR COVER
This is an optional rear cover (with accessories) that allows the following
alternatives:
A single DU 31 / DU 31AT wall surface mount (straight, tilted or angled).
Installation of a pair of loudspeaker.
Desk-top use.
The 4 corners allow to fix the loudspeaker through 4 screws.
The rear cover has 5 points
that can be drilled to get a hole
necessary for the cable passage.
Example: rear view with central hole and a rubber
grommet.
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A 1331 REAR COVER
PICTURE 2
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ENGLISH
On the rear, there are 4 locations for the insertion of the supplied accessories
and a point for a self-tapping screw.
WALL MOUNT INSTALLATION WITH A 1331
Prepare the hole for the cable passage in the A 1331 rear cover.
Install (only) the A 1331 rear cover to the wall through 2 dowels with 3.5
mm screws passing through the 2 fixing points indicated here in the picture.
Remove the DU 31 / DU 31AT
loudspeaker protective grille by
using a small screwdriver.
Connect the cable to the
loudspeaker (see the ‘Connection’
manual section), then fix the
loudspeaker to the A 1331 rear
cover through the 4 front screws.
Remount the loudspeaker
protective grille.
As alternative, it is possible to install the
loudspeaker tilted downwards, by using the
2 fixing points on the bottom oblique side.
A 1331 - FIXING POINTS
WALL MOUNT
INSTALLATION WITH A 1331
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ENGLISH
ANGLED WALL MOUNT INSTALLATION WITH A 1331
(SINGLE OR A PAIR OF LOUDSPEAKERS)
The A 1331 rear cover includes the ‘A’ accessory that permits the loudspeaker
installation with a 45° horizontal angle.
The 2 central holes of the ‘A’ accessory allow to fix the A 1331 rear cover
(through two 3.5 mm self-tapping screws), the 2 lateral slots are for wall
mount installation.
Proceed as follows:
Install the ‘A’ accessory to the wall.
Prepare the hole for the cable passage in the A 1331 rear cover.
Fix the A 1331 rear cover to the ‘A’ accessory through two 3.5 mm self-
tapping screws.
Remove the loudspeaker protective grille by using a small screwdriver.
Connect the cable to the loudspeaker (see the ‘Connection’ manual
section), then fix the loudspeaker to the A 1331 rear cover through the 4
front screws.
Remount the loudspeaker protective grille.
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‘A’ ACCESSORY
A 1331 - FIXING POINTS
ANGLED WALL MOUNT
INSTALLATION WITH A 1331
(SINGLE OR A PAIR OF
LOUDSPEAKERS)
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2 ‘A’ accessories put together with 2 lock pins allow the installation of a pair
of loudspeakers pointed at different directions (90° angle between the 2
loudspeaker axes).
2 ‘A’ ACCESSORIES PUT TOGETHER WITH 2 LOCK PINS
Proceed as follows:
Put together the 2 ‘A’ accessories through the 2 lock pins (included).
Install the pair of ‘A’ accessories to the wall.
Prepare the holes for the cable passage in the A 1331 rear covers.
Fix each A 1331 rear cover to the respective ‘A’ accessory through two 3.5
mm self-tapping screws.
Remove the loudspeaker protective grilles by using a small screwdriver.
Connect the cable to both loudspeakers (see the ‘Connection’ manual
section), then fix each loudspeaker to the respective A 1331 rear cover
through the 4 front screws.
Remount the loudspeaker protective grilles.
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DESK-TOP (WITH A 1331 REAR COVER)
The A 1331 rear cover includes the ‘B’ accessory (to be fixed to the rear
through a self-tapping screw) that permits to place the loudspeaker on a
desk.
‘B’ ACCESSORY
90°
A 1331 FIXING POINTS
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