AC 1503 - Uncategorized RCF - Free user manual and instructions

Product Type	Passive loudspeaker for 100/70V line
Model	AC 1503
Brand	RCF
Wiring Connection	Screw terminals (in/out) for 100/70V line
Phase Polarity	Must respect amplifier polarity for correct sound
Protection	Thermal fuse on central screw terminal
Installation	Professional qualified installer only
Safety Warning	Never install or connect when line is live (100/70V shock risk)
Cable Requirements	Adequate section, twisted pair recommended, sufficient insulation
Regulatory Compliance	Entire system must comply with local electrical standards
Included Accessories	Mounting bracket (metal with slot and holes)
Intended Use	Indoor/outdoor PA systems (100/70V line)
Maintenance	Refer to professional service; no user-serviceable parts
Power Handling	Not specified; typical for similar models: 30-60W RMS
Frequency Response	Not specified; typical for similar models: 80Hz-20kHz

Frequently Asked Questions - AC 1503 RCF

Can I install the RCF AC 1503 myself?

No, RCF strongly recommends installation only by professional qualified installers to ensure correct installation and certification according to regulations.

What is the risk if I connect the speaker while the line is live?

Loudspeaker lines (100/70V) carry dangerous voltage that can cause electrocution. Always disconnect the amplifier before installation or connection.

How do I connect the AC 1503 to a 100V line?

Connect the 100/70V line to the screw terminals on the interior side. Use two cables (in/out) to keep the line continuous, except for the last speaker. The positive wire goes to the central terminal with the thermal fuse.

What type of cable should I use?

Use cables with adequate section and sufficient electrical insulation. Twisted cables are recommended to reduce inductive effects from electromagnetic fields. Check local regulations for additional requirements.

Why is correct phase polarity important?

To ensure proper sound reproduction, all loudspeakers must be connected with the same polarity as the amplifier. Reversing phase can cause cancellation and poor audio quality.

Does the AC 1503 have a built-in amplifier?

No, it is a passive speaker designed for use with an external amplifier on a 100/70V line.

What is the thermal fuse for?

The thermal fuse on the central terminal provides overload protection. If the speaker is overdriven, the fuse may blow to prevent damage. Check continuity if the speaker stops working.

Can I use the AC 1503 outdoors?

The manual does not specify environmental ratings, but typical RCF indoor/outdoor speakers may be used under cover. Check the product documentation for IP rating or consult the manufacturer.

What is the power handling of the AC 1503?

Exact power ratings are not given. Based on similar 100V line speakers, expect 30-60W RMS at 100V. The transformer tap value is not listed; refer to the speaker label.

Where can I find the user manual?

The manual is available for free download in PDF format from notice-facile.com or RCF's official website. You can also request a translated version by selecting your language and providing your email.

USER MANUAL AC 1503 RCF

3D rendering of a metal bracket with mounting holes and a slot, no text or symbols visible

AVVERTENZE :

- 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.

- 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.

- To ensure a correct sound reproduction, loudspeaker phase is to be respected (loudspeakers are connected respecting the amplifier polarity).

- 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.

RCF AC 1503 - ISTRUZIONI INSTRUCTIONS

1. Connect the 100 / 70 V line to the screw terminals (on the accessory interior side) with 2 cables (in / out, to keep the line continuous, but the last loudspeaker).

The positive wire is to be connected to the central screw terminal that is linked to the thermal fuse.

Architectural elevation view showing a window with a small object on the wall (no text or symbols visible)

3D mechanical assembly diagram showing a bracket with mounting holes and wiring (no text or symbols)

CONDUTTORI AL TRASFORMATORE DEL DIFFUSORE

WIRES TO THE LOUDSPEAKER TRANSFORMER