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4

ENGLISH

SAFETY AND OPERATING 

PRECAUTIONS

IMPORTANT NOTES

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. 

Speaker 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 
speaker when the line is alive.

3. 

Make sure all connections have been made correctly and the speaker input 

voltage is suitable for the amplifier output.

4. 

Protect speaker 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 speaker does not function (or works in an anomalous way).

 

-

The cable has been damaged.

 

-

Objects or liquids have got into the unit.

 

-

The speaker has been damaged due to heavy impacts or fire.

7.

 Should the speaker 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 (wall plugs, 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.

Summary of Contents for MR 52BEN

Page 1: ...USER MANUAL MANUALE D USO MR 52WEN MR 52BEN TWO WAY BASS REFLEX SPEAKER IN COMPLIANCE WITH EN 54 24 STANDARD DIFFUSORE ACUSTICO A DUE VIE BASS REFLEX CONFORME ALLA NORMA EN 54 24 ...

Page 2: ......

Page 3: ...RATING PRECAUTIONS DESCRIPTION INSTALLATION CONNECTION POWER SELECTION SPECIFICATIONS ITALIANO AVVERTENZE PER LA SICUREZZA E PRECAUZIONI D USO DESCRIZIONE INSTALLAZIONE COLLEGAMENTO SELEZIONE DELLA POTENZA DATI TECNICI 4 6 6 8 9 10 12 14 14 16 17 18 ...

Page 4: ...d 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 speaker does not function or works in an anomalous way Th...

Page 5: ...d it is necessary to wear ear plugs or protective earphones See the technical specifications in the instruction manual for the maximum sound pressure the speaker is capable of producing 12 To ensure a correct sound reproduction speaker phase is to be respected speakers are connected respecting the amplifier polarity This is important when speakers are installed adjacent one another for instance in...

Page 6: ...on is carried out via an adjustable mounting bracket supplied When linked to a constant voltage line the rear panel rotary switch allows to select the rated power The body is made of high density ABS scratch resistant flame retardant UL94 V 0 with a steel grille DESCRIPTION WARNING Make sure that the speaker is installed in a stable and secure way in order to avoid any conditions that may be dange...

Page 7: ... Fix the L shaped bracket L plate to the speaker rear by using two bolts 3 Connect both the input cable and the output cable when necessary to link other speakers in parallel See the next user manual section relating to the connection 4 Put the cover on the ceramic screw terminal protective box and fix it with a screw 5 Install the speaker by joining the L shaped bracket to the mounting accessory ...

Page 8: ...de by using the ceramic terminal strip which is inside the protective box on the rear side the cover needs to be removed The terminals allow to connect both input and output cables to link other speakers in parallel Applicable wire section from 1 mm to 4 mm 1 Insert cables through the two rear cable guides 2 Connect the line positive wire to the speaker input 3 Connect the line negative wire to th...

Page 9: ... 7 5 W 3 7 5 W 3 7 5 W 7 5 W 7 5 W 1 5 W 1 0 0 V 7 0 V 1 5 W 8Ω 8 Ω LOW IMPEDANCE CONNECTION Turn the power switch to the 8 Ω position Notes The total speaker impedance must not be lower than the amplifier output impedance A speaker total impedance equal to the amplifier output one permits to get the maximum deliverable power but a higher impedance entails less power The total speaker power shall ...

Page 10: ...RILLE MATERIAL COLOUR CONNECTOR NET WEIGHT OPERATING TEMPERATURE DIMENSIONS 100 V 70 V constant voltage or Z 8 Ω 30 W 30 W 15 W 7 5 W 3 75 W 15 W 7 5 W 3 75 W 1 875 W 8 Ω 333 Ω 30 W 100 V 15 W 70 V 667 Ω 15 W 100 V 7 5 W 70 V 1 33 kΩ 7 5 W 100 V 3 75 W 70 V 2 67 kΩ 3 75 W 100 V 1 875 W 70 V 80 Hz 20 kHz 89 dB 1 W 1 m 77 dB 1 W 4m 104 dB 30 W 1 m 92 dB 30 W 4 m 180 1 kHz 80 4 kHz ABS steel white MR...

Page 11: ......

Page 12: ... d uscita dell amplificatore 4 Accertarsi che la linea diffusori non possa essere calpestata o schiacciata da oggetti al fine di salvaguardarne la perfetta integrità 5 Impedire che oggetti o liquidi entrino all interno del prodotto perché potrebbero causare un corto circuito 6 Non eseguire sul prodotto interventi modifiche riparazioni se non quelle espressamente descritte sul manuale istruzioni Co...

Page 13: ... necessario indossare dei tappi per orecchie o delle cuffie protettive Consultare i dati tecnici contenuti nel manuale istruzioni per conoscere la massima pressione sonora che il diffusore acustico è in grado di produrre 12 I diffusori devono essere collegati in fase corrispondenza delle polarità tra amplificatori e diffusori in modo da garantire una corretta riproduzione audio soprattutto quando ...

Page 14: ...amite una staffa di montaggio regolabile in dotazione Nel collegamento a tensione costante la potenza è facilmente selezionabile tramite il commutatore rotativo posto sul retro Il corpo è in ABS ad alta densità resistente ai graffi ritardante alla fiamma UL94 V 0 e con griglia in acciaio NOTE Installare il diffusore in modo stabile e sicuro così da evitare qualsiasi condizione di pericolo per l in...

Page 15: ...toni pieni calcestruzzo ecc 2 Fissare la staffa a L al retro del diffusore acustico tramite due bulloni 3 Collegare sia il cavo d ingresso sia eventualmente quello d uscita vedere la sezione successiva del manuale inerente al collegamento 4 Chiudere la scatola protettiva della morsettiera ceramica fissandola con una vite 5 Installare il diffusore acustico unendo la staffa a L al supporto già fissa...

Page 16: ...sore acustico occorre rimuoverne il coperchio I morsetti e permettono il collegamento sia del cavo d ingresso sia di quello d uscita per la connessione in parallelo di altri diffusori Sezione utilizzabile dei conduttori da 1 mm a 4 mm 1 Inserire i cavi attraverso i due passacavi posteriori 2 Collegare il conduttore positivo della linea all ingresso del diffusore acustico 3 Collegare il conduttore ...

Page 17: ... Numero diffusori Vd Tensione ingresso diffusore Va Tensione uscita amplificatore Pa Pd x n Va Vd va Vd va Vd va COLLEGAMENTO A BASSA IMPEDENZA Impostare il selettore della potenza nella posizione 8 Ω Note l impedenza totale dei diffusori non deve essere inferiore a quella d uscita dell amplificatore l impedenza complessiva dei diffusori uguale a quella d uscita dell amplificatore permette l eroga...

Page 18: ...NZIONAMENTO DIMENSIONI tensione costante 100 V 70 V oppure bassa impedenza 8 Ω 30 W 30 W 15 W 7 5 W 3 75 W 15 W 7 5 W 3 75 W 1 875 W 8 Ω 333 Ω 30 W 100 V 15 W 70 V 667 Ω 15 W 100 V 7 5 W 70 V 1 33 kΩ 7 5 W 100 V 3 75 W 70V 2 67 kΩ 3 75 W 100 V 1 875 W 70 V 80 Hz 20 kHz 89 dB 1 W 1 m 77 dB 1 W 4m 104 dB 30 W 1 m 92 dB 30 W 4 m 180 1 kHz 80 4 kHz ABS acciaio bianco MR 52WEN nero MR 52BEN morsettiera...

Page 19: ...3 42124 Reggio Emilia ITALY 17 1488 CPR 0591 W EN 54 24 2008 Loudspeaker for voice alarm systems for fire detection and fire alarm systems for buildings MR 52BEN MR 52WEN Provided options Type A Other technical data see operational manual ...

Page 20: ...Emilia Italy Tel 39 0522 274 411 Fax 39 0522 232 428 e mail info rcf it Salvo eventuali errori ed omissioni RCF S p A si riserva il diritto di apportare modifiche senza preavviso Except possible errors and omissions RCF S p A reserves the right to make modifications without prior notice ...

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