DU 31AT - Loudspeaker RCF - Free user manual and instructions
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| Product Type | 2-way loudspeaker system |
| Brand | RCF |
| Model | DU 31AT |
| Category | Passive full-range speaker |
| Dimensions (W x H x D) | 280 mm x 420 mm x 240 mm |
| Weight | 8.5 kg |
| Power Handling | 120 W continuous, 240 W peak |
| Frequency Response | 65 Hz - 20 kHz |
| Impedance | 8 ohms |
| Sensitivity | 92 dB (1W @ 1m) |
| Dispersion | 90° x 60° |
| Connectors | 2 x Speakon, 1 x 1/4" jack |
| Main Functions | High-fidelity sound reproduction for live performances and fixed installations |
| Enclosure Material | High-density polypropylene |
| Grille Material | Powder-coated steel with acoustic foam |
| Mounting Options | Pole-mount socket (35 mm) and flying points |
| Maintenance & Cleaning | Wipe with a dry cloth; periodically check connections and tighten screws |
| Safety Precautions | Place on a stable surface, protect from moisture, avoid overdriving amplifier |
| Spare Parts & Repairability | Drivers, crossovers and grille are replaceable; service by qualified personnel |
| General Information | Designed for professional use, compatible with standard PA stands and brackets |
Frequently Asked Questions - DU 31AT RCF
How do I connect the DU 31AT to my amplifier?
Use a Speakon or 1/4" jack cable. Connect the amplifier output to the input connector on the speaker. Ensure the amplifier is turned off during connection, and match the impedance (8 ohms) to your amplifier's rating.
What is the best placement for optimal sound?
Place the speaker at ear level for the audience, ideally on a speaker stand. Keep it away from walls and corners to avoid bass buildup. For stereo, position left and right speakers equidistant from the listening area.
Can I use this speaker outdoors?
The DU 31AT is not weatherproof but can be used outdoors if protected from direct rain and extreme humidity. Use a cover or place it under a canopy. Keep connections dry and secure.
How do I clean the speaker?
Use a soft, dry cloth to wipe the enclosure and grille. For stubborn dirt, slightly dampen the cloth with water and mild soap, then wring thoroughly. Avoid using solvents or spraying liquids directly onto the speaker.
What should I do if there is no sound coming out?
First check the amplifier output and source. Ensure the speaker cable is fully inserted. Test the cable on another speaker. If the speaker still has no sound, the internal fuse or driver may be faulty; contact a qualified technician.
Can I mount this speaker on a stand?
Yes, the speaker has a 35 mm pole-mount socket. Use a standard speaker stand rated for at least the speaker's weight (8.5 kg). Ensure the stand is on stable ground and lock the pole securely.
What is the impedance and power handling?
The speaker has an impedance of 8 ohms and handles 120 W continuous (240 W peak). It is recommended to use an amplifier that delivers between 60 W and 240 W RMS per channel at 8 ohms.
Is the DU 31AT an active or passive speaker?
It is a passive speaker, meaning it requires an external amplifier to power it. You need to connect it to a suitable amplifier or PA system.
How do I protect the speaker from damage?
Avoid clipping the amplifier (red light on) as this can damage the tweeter. Use high-pass filters if playing deep bass. Protect the speaker from physical shocks and extreme temperatures. Always turn off the amplifier before connecting or disconnecting cables.
What is the warranty coverage?
RCF typically offers a 2-year warranty on passive loudspeakers, covering defects in materials and workmanship. The warranty does not cover damage from misuse, accidents, or unauthorized repairs. Keep your receipt for warranty service.
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