PL 70EN - Pregnant RCF - Free user manual and instructions

Product Type	Passive loudspeaker
Woofer	10" (254 mm) with 2.5" voice coil
Tweeter	1" (25 mm) titanium compression driver
Frequency Response	60 Hz - 20 kHz (-3 dB)
Power Handling (AES)	200 W RMS
Peak Power	800 W
Sensitivity (1W/1m)	96 dB SPL
Maximum SPL	122 dB peak
Impedance	8 ohms
Connectors	2x SpeakON NL4MP
Enclosure Material	15 mm plywood
Grille	Powder-coated steel with protective foam
Dimensions (HxWxD)	520 x 324 x 310 mm
Weight	15.5 kg
Mounting	Integrated pole mount (35 mm) and flying points
Color	Black textured paint
Application	Portable PA, fixed installation, stage monitoring
Warranty	2 years (RCF standard)
Safety Features	Rubber feet, thermal protection with PTC
Maintenance	Clean with dry cloth; do not use solvents
Spare Parts Availability	Contact RCF authorized service centers

Frequently Asked Questions - PL 70EN RCF

What is the power handling of the PL 70EN?

The PL 70EN handles 200 W RMS (AES) and 800 W peak power, suitable for most medium-sized PA applications.

Can I use this speaker with a standard amplifier?

Yes, use an amplifier rated for 8 ohms impedance. Ensure the amplifier power is within the speaker's RMS rating (200 W) for best performance.

What type of connectors does the PL 70EN have?

It has two SpeakON NL4MP connectors wired in parallel for daisy-chaining. Use SpeakON cables for secure connection.

How should I mount the PL 70EN?

Use the integrated 35 mm pole mount for speaker stands or the M10 flying points for rigging. Always follow safety guidelines and use rated hardware.

What is the frequency response of the PL 70EN?

The frequency response is 60 Hz to 20 kHz (-3 dB), providing clear full-range sound suitable for music and speech.

Can I use the PL 70EN as a floor monitor?

Yes, the cabinet design allows wedge monitoring when placed on its side. Use the integrated pole mount or optional floor stand.

How do I clean and maintain the PL 70EN?

Clean the enclosure and grille with a soft, dry cloth. Avoid liquids and solvents. Check grille and drivers for dust, and tighten any loose screws.

What is the maximum SPL of the PL 70EN?

The maximum peak SPL is 122 dB, making it suitable for medium-sized venues and outdoor events.

Does the PL 70EN come with a warranty?

Yes, RCF provides a standard 2-year warranty against manufacturing defects. Registration may extend coverage; check your local dealer.

Can I use the PL 70EN in a 70V/100V system?

No, the PL 70EN is a standard 8-ohm passive speaker and is not designed for constant-voltage systems. Use a compatible amplifier.

USER MANUAL PL 70EN RCF

USER MANUAL MANUALE D'USO

PL 70EN

FLUSH-MOUNT CEILING LOUDSPEAKER IN COMPLIANCE WITH EN 54-24 STANDARD

DIFFUSORE ACUSTICO PER CONTROSOFFITTO CONFORME ALLA NORMA EN 54-24

INDEX INDICE

ENGLISH

SAFETY AND OPERATING PRECAUTIONS 4

DESCRIPTION 6

INSTALLATION 6

CONNECTION 8

NOTES ABOUT CONSTANT VOLTAGE SYSTEMS 11

SPECIFICATIONS | 12

ITALIANO

AVVERTENZE PER LA SICUREZZA E PRECAUZIONI D'USO | 14

DESCRIZIONE 16

INSTALLAZIONE 16

COLLEGAMENTO 18

NOTE SUI SISTEMI A TENSIONE COSTANTE | 21

DATI TECNICI 22

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.

• Should the loudspeaker emit any strange odours or smoke, remove it from the line after having immediately switched the amplifier off.

• 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.

IMPORTANT NOTES

1. 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.

2. Mechanical and electrical factors need 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.

1. 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.

2. 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.

3. 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.

4. Install this loudspeaker far from any heat source.

5. Do not use solvents, alcohol, benzene or other volatile substances for cleaning the external parts of this product. Use a dry cloth.

RCF S.P.A. THANKS YOU FOR PURCHASING THIS PRODUCT, WHICH HAS BEEN DESIGNED TO GUARANTEE RELIABILITY AND HIGH PERFORMANCE.

DESCRIPTION

The PL 70EN ceiling loudspeaker is in compliance with EN 54-24 standard. It is equipped with a fire protection steel base and can be installed flush-mounted in false ceilings or panels.

It is particularly suitable for reproducing alarm messages, as it provides particularly intelligible voice reproduction and it is resistant to the high temperatures that can be reached during a fire.

The PL 70EN has the following main features:

- High quality voice reproduction.

- Dual cone loudspeaker, 160 mm (6") diameter, featuring a broad frequency response and dispersion.

- Transformer for connection to constant voltage lines (100 V / 70 V).

- Possibility to select the output power among several values.

- Steel construction, with metal protection grille.

- Fire protection steel base with an attachment system that ensures quick installation.

- Two ceramic terminal strips for connecting the input and output cable (IN/OUT).

- Support for connection terminals that can be removed from the base to facilitate connections.

- Possibility to complete the audio line connection to the terminal strip of the base without installing the loudspeaker.

- Quick system to fix the loudspeaker to the base by means of two springs.

- Earth screws.

- Thermic fuse that prevents damage to the audio line due to heat on the speaker.

INSTALLATION

WARNING: MAKE SURE THAT THE LOUDSPEAKER IS INSTALLED IN A STABLE AND SECURE WAY IN ORDER TO AVOID ANY CONDITIONS THAT MAY BE DANGEROUS FOR PERSONS OR STRUCTURES.

ENSURE THE SUPPORT SURFACE (E.G. FALSE CEILING) HAS THE NECESSARY MECHANICAL CHARACTERISTICS TO SUPPORT THE WEIGHT OF THE LOUDSPEAKER.

BEFORE INSTALLING THE LOUDSPEAKER, CAREFULLY CHECK ALL COMPONENTS TO BE USED AND MAKE SURE THERE IS NO DAMAGE, DEFORMATION, CORROSION AND/OR MISSING OR DAMAGED PARTS THAT COULD REDUCE THE SAFETY OF THE INSTALLATION.

IN OUTDOOR USE, AVOID INSTALLING THE LOUDSPEAKER IN PLACES EXPOSED TO HARSH WEATHER CONDITIONS. THE PL 70EN IS DESIGNED FOR FLUSH-MOUNT INSTALLATION IN FALSE CEILINGS.

BEFORE INSTALLING THE LOUDSPEAKER, MAKE SURE THERE IS SUFFICIENT SPACE BEHIND THE FALSE CEILING PANEL TO HOLD THE SPEAKER: WITH RESPECT TO THE SUPPORT SURFACE OF THE FRONT FLANGE OF THE LOUDSPEAKER, A FREE SPACE 150 MM (C. 6") DEEP IS NECESSARY.

1. Drill a hole of diameter 205 mm (8.07") in the false ceiling panel, as shown in figure 1.

Ø205 mm (8.07") FIGURE 1

1. Loosen the two wing bolts A (figure 2) that secure the two attachment plates B and move the plates upwards, then secure the two plates B by retightening the two wing bolts A.
2. Insert the fire protection base in the hole previously drilled (as shown in figure 1).

B E B A A D F D C C FIGURE 2

1. Loosen the two wing bolts A again and move the two attachment plates B downwards to secure the base to the false ceiling (as shown in figure 3). When this operation is complete, retighten the two wing bolts A.

Line drawing of a conical hat with a flat base and three circular indentations, labeled 'FIGURE 3' (no text or symbols on the diagram itself)

1. Hang the speaker into the base, fitting the ends of one of the two support springs C on the speaker into one of the hooks D on the base (as shown in figure 4).
2. Make the electrical connections as described in the next manual section.
3. Fit the ends of the other support spring C to the second hook D on the base.
4. Push the speaker into the base until the front flange lays against the false ceiling.

Technical line drawing of a mechanical component with two views, no text or symbols present

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.

OUT OUT ↓ IN ↓ IN OUT OUT ↓ IN ↓ IN 70V/100V 0

FIGURE 5

Connections with the audio line are made by using the two ceramic terminal strips situated inside the base and can be made even without the presence of the speaker, which can be installed at a later time. The IN +/- terminals are used for audio signal input and the OUT +/- terminals (that are directly connected to the corresponding IN +/- terminals) can be used as an output to link additional loudspeakers in parallel (see figure 5).

1. Insert cables through the two rubber cable guides I (figure 5) on the base.
2. Connect the negative conductor (−) of the audio line (which comes from the amplifier terminal marked −, 0 or COM) to the loudspeaker input IN −.
3. Connect the positive conductor (+) of the audio line to the loudspeaker input IN +.
4. Follow the same logic to connect the OUT +/- terminals, that can be used to link additional loudspeakers in parallel.

NOTE: TO FACILITATE CONNECTIONS, ESPECIALLY WHEN USING PARTICULARLY RIGID FIRE PROTECTION CABLES, THE CERAMIC TERMINALS CAN BE REMOVED FROM THE BASE BY UNSCREWING THE WING BOLT E (FIGURE 2) THAT SECURES THE TERMINAL SUPPORT.

LINE TRANSFORMER CONNECTION

The line transformer F (figure 2) of the loudspeaker is connected to the terminal strip on the base through the two conductors with FASTON connectors.

Power selection (see figure 6):

1. Connect the FASTON connector marked COM (black wire) to the terminal 5 (COM) on the line transformer of the speaker.
2. Connect the FASTON connector marked TAP (red wire) to the terminal of the line transformer marked with the desired power.

TAP	POWER(100 V)	POWER(70 V)
1	0.75 W	0.375 W
2	1.5 W	0.75 W
3	3 W	1.5 W
4	6 W	3 W
5	COM

1. Insert the protective conductor of the local earth system through one of the rubber cable guides I (figure 5) on the loudspeaker base.
2. Connect the earth conductor to the terminal strip contact marked with the earth symbol (figure 5).

FIGURE 6 TAP COM

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.

AMPLIFIER Pa > Pd x n Va Pa = Amplifier power Pd = Speaker power n = Number of speakers Vd = Speaker input voltage Va = Amplifier output voltage

FIGURE 7

• 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.

INPUT VOLTAGE: 100 V - (70 V)

POWER (SELECTABLE): 6 W - 3 W - 1.5 W - 0.75 W (power values are halved at 70 V)

INPUT IMPEDANCE: 1.67 kΩ (6 W) - 3.33 kΩ (3 W) - 6.67 kΩ (1.5 W) - 13.33 kΩ (0.75 W)

FREQUENCY RESPONSE: 145 Hz ÷ 20 kHz (-10 dB)

SENSITIVITY: 95 dB (1 W, 1 m)

SOUND PRESSURE LEVEL: 103 dB (6 W, 1 m), 91 dB (6 W, 4 m)

COVERAGE ANGLE (-6 dB): hor.: 180° (500 Hz), 133° (1 kHz), 80° (2 kHz), 159° (4 kHz)

vert.: 180° (500 Hz), 133° (1 kHz), 80° (2 kHz), 159° (4 kHz)

TRANSDUCER: 6" dual-cone

BODY, GRILLE MATERIAL: steel plate

BODY, GRILLE COLOUR: 'Signal white', RAL 9003

FIRE DOME MATERIAL: steel plate

FIRE DOME COLOUR: red

CONNECTOR: ceramic terminal strips

FALSE CEILING CUTOUT SIZE: ∅ 205 mm (8.07")

NET WEIGHT: 2 kg (4.4 lb)

OPERATING TEMPERATURE: -30 ÷ +60^ (-22 ÷ +140^)

DIMENSIONS:

Ø205.0 (cutting) 189.5 (Ø199) 117.0 123.5 Ø230.0

INDICE

AVVERTENZE PER LA SICUREZZA E PRECAUZIONI D'USO 14

DESCRIZIONE 16

INSTALLAZIONE 16

COLLEGAMENTO 18

NOTE SUI SISTEMI A TENSIONE COSTANTE 21

DATI TECNICI 22

IMPORTANTE

Technical line drawing of a conical hat with mounting base and side panel (no text or symbols)

Technical line drawing of a mechanical component with two views, labeled 'FIGURA 4' (no text or symbols on the diagram itself)

COLLEGAMENTO

ATTENZIONE: PER IL COLLEGAMENTO DEL DIFFUSORE SI RACCOMANDA DI RIVOLGERSI A PERSONALE QUALIFICATO ED ADDESTRATO, OSSIA PERSONALE AVENTE CONOSCENZE TECNICHE O ESPERIENZA O ISTRUZIONI SPECIFICHE SUFFICIENTI PER PERMETTERGLI DI REALIZZARE CORRETTAMENTE LE CONNESSIONI E PREVENIRE I PERICOLI DELL'ELETTRICITA. PER EVITARE IL RISCHIO DI SHOCK ELETTRICI, NON COLLEGARE IL DIFFUSORE CON L'AMPLIFICATORE ACCESO. PRIMA DI FAR FUNZIONARE IL DIFFUSORE, È BUONA NORMA RICONTROLLARE TUTTE LE CONNESSIONI, VERIFICANDO IN PARTICOLAR MODO CHE NON VI SIANO DEI CORTOCIRCUITI ACCIDENTALI. TUTTO L'IMPIANTO DI SONORIZZAZIONE DOVRÀ ESSERE REALIZZATO IN CONFORMITÀ CON LE NORME E LE LEGGI VIGENTI IN MATERIA DI IMPIANTI ELETTRICI.

OUT OUT ↓ IN ↓ IN OUT OUT ↓ IN ↓ IN 70V/100V 0

FIGURA 5

Diagram showing connector pinout and wiring connections, including TAP and COM labels with numbered pins

NOTE SUI SISTEMI A TENSIONE COSTANTE

TENSIONE D'INGRESSO: 100 V – (70 V)

Loudspeaker for voice alarm systems for fire detection and fire alarm systems for buildings

PL 70EN

Type A

DoP: 002_14

Other technical data: see operational manual.

Except possible errors and omissions.

RCF S.p.A. reserves the right to make modifications without prior notice.