RCF DP 4 Bedienungsanleitung

OWNER MANUAL

MANUALE D’USO

DP 4 SOUND PROJECTOR

PROIETTORE DI SUONO

INDEX

INDICE

ENGLISH

SAFETY PRECAUTIONS

DESCRIPTION

INSTALLATION

CONNECTION

NOTES ABOUT

CONSTANT VOLTAGE SYSTEMS

NOTES ABOUT

LOW IMPEDANCE CONNECTIONS

SPECIFICATIONS

ITALIANO

AVVERTENZE PER LA SICUREZZA

DESCRIZIONE

INSTALLAZIONE

COLLEGAMENTO

NOTE SUI SISTEMI

A TENSIONE COSTANTE

NOTE SUI SISTEMI

CON CONNESSIONE A BASSA IMPEDENZA

DATI TECNICI

ENGLISH

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 ampliﬁers are switched on.

3. Make sure all connections have been made correctly and the loudspeaker

input voltage (or the loudspeaker 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 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.

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.

ENGLISH

Sound projectors DP 4 are elegant and suitable for sound distribution in very

large and noisy environments (e.g. railway stations, underground, car parks,

factories, warehouses, shopping centres, etc..).

DP 4 sound projectors can be installed both indoor and outdoor (IP code: IP 55).

These have a cylindrical plastic body with an U bracket support for the

installation and include:

A dual cone loudspeaker (externally protected by a grille).

A transformer for 100V constant voltage lines, with the possibility to set the

power during the installation. A low impedance input (8 Ω) is available.

Colour: light grey.

DESCRIPTION

RCF S.P.A. THANKS YOU FOR PURCHASING THIS PRODUCT, WHICH

HAS BEEN DESIGNED TO GUARANTEE RELIABILITY AND HIGH

PERFORMANCE.

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.).

Install the loudspeaker through the 6 mm holes present on its mounting

bracket.

Aim the loudspeaker to the listening area and ﬁx its position by tightening

the two bolts of its mounting bracket.

Connect the loudspeaker as described in the next section.

WARNING

ENGLISH

WARNING

CONNECTION

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 and 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.

The internal transformer allows the connection to 100 V constant voltage

lines and the power selection (during the installation) among the values

10 W – 5 W.

As alternative, it is possible to connect the loudspeaker to an ampliﬁer 8 Ω

output.

WARNING

THE SELECTION IS MADE CONSIDERING THE WIRE COLOURS

COLOUR POWER VOLTAGE IMPEDANCE

YELLOW 10 W 100 V 1 kΩ

GREEN 5 W 100 V 2 kΩ

BLUE COMMON WIRE

RED 10 W 8 Ω

ENGLISH

GREEN

YELLOW

BLUE

100 V

100 V - 10 W

100 V - 5 W

LOUDSPEAKER SET TO 10 W

LOUDSPEAKER SET TO 5 W

100 V CONSTANT VOLTAGE LINE:

Connect the ampliﬁer output marked with ‘0’, ‘b’ or ‘COM’ to the

loudspeaker common input (BLUE wire).

Connect the ampliﬁer 100 V output (terminal marked with ‘100 V’ or ‘a’) to

one (only) of the 2 loudspeaker 100 V input wires (according to the chosen

power): YELLOW (10 W) or GREEN (5 W).

Note: DoNot coNNect the 100 V liNe to the louDspeaker low impeDaNce iNput

(reD wire).

iNsulate the two uNuseD wires.

Note: if the louDspeaker is coNNecteD to a70 V liNe (iNsteaD of 100 V), its

power will be halVeD (5 / 2.5 w).

LOW IMPEDANCE CONNECTION:

Connect the ampliﬁer ‘–’ output to the loudspeaker common input (BLUE wire).

Connect the ampliﬁer ‘+’ output to the loudspeaker 8 Ωinput (RED wire).

100 V CONSTANT VOLTAGE LINE

LOW IMPEDANCE CONNECTION

ENGLISH

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

sound reproduction.

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.

Pa > Pd x n

+ Va

–

– Vd = Va + – Vd = Va + – Vd = Va +

The total loudspeaker impedance must not be lower than the ampliﬁer

output impedance.

Note: alouDspeaker 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 impedance of a group of identical loudspeakers linked in parallel is

given by their unit value divided by the loudspeaker quantity.

The total loudspeaker power shall be adequate for the maximum deliverable

power of the ampliﬁer.

The loudspeaker line shall be as short as possible.

NOTES ABOUT

LOW IMPEDANCE CONNECTIONS

ENGLISH

INPUT

POWER

FREQUENCY RESPONSE

SENSITIVITY

SOUND PRESSURE LEVEL (10 W)

COVERAGE ANGLE

TRANSDUCER

BODY MATERIAL

GRILLE

IP CODE

COLOUR

DIMENSIONS

NET WEIGHT

100 V / 8 Ω

10 – 5 W (100 V) / 10 W (8 Ω)

180 Hz ÷ 16 kHz

91 dB (1 m / 1 W)

101 dB (1 m)

210° (1 kHz), 130° (2 kHz)

5” dual-cone woofer

ABS

powder coated aluminium

IP 55

light grey

ø 137 mm x 215 mm

1.3 kg

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