HD 31EN - Loudspeaker RCF - Free user manual and instructions
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| Brand | RCF |
| Model | HD 31EN |
| Product type | Professional 2-way passive loudspeaker system |
| Frequency response | 50 Hz – 20 kHz (-6 dB) |
| Impedance | 8 ohms |
| Power handling | 400 W RMS / 800 W program / 1600 W peak |
| Sensitivity | 98 dB SPL @ 1 m / 1 W |
| Nominal dispersion | 60° x 40° rotatable horn |
| Drivers | 1 x 15" woofer, 1 x 1" compression driver |
| Crossover frequency | 1.8 kHz |
| Connectors | 2 x Neutrik speakON NL4 |
| Enclosure material | Birch plywood, black semi-matt finish |
| Dimensions (H x W x D) | 700 x 450 x 380 mm (27.6 x 17.7 x 15.0 in) |
| Weight | 25 kg (55.1 lbs) |
| Flying and mounting | 8 x M8 rigging points, 36 mm pole socket |
| Protective grille | Steel grille with acoustic foam |
| Safety | Secure installation required; avoid exposure to rain or moisture. |
| Maintenance and cleaning | Clean with a soft dry cloth; never use solvents or abrasive cleaners. |
| Spare parts and repairability | Contact qualified RCF service centers for original spare parts. |
Frequently Asked Questions - HD 31EN RCF
What is the best way to connect the HD 31EN to an amplifier?
Use the 2 x Neutrik speakON NL4 connectors in parallel. Always ensure the amplifier is powered off before connecting, and match the load impedance (minimum 8 ohms) to the amplifier specs.
Can I use this speaker as a floor monitor?
Yes, the HD 31EN can be positioned on its side for a stage monitor wedge angle. The cabinet is designed with a trapezoidal shape that offers a 45° monitor angle.
What stand or pole should I use?
The HD 31EN has a 36 mm pole socket on the bottom. Use a professional speaker stand with a 35 mm pole (with adapter) rated for at least the speaker's weight.
How should I clean the speaker cabinet?
Use a soft dry cloth to remove dust from the cabinet and grille. Do not use water, solvents, or abrasive materials, as they can damage the finish and the acoustic foam.
What is the power handling and recommended amplifier power?
The speaker handles 400 W RMS and up to 1600 W peak. A recommended amplifier power is 800 W to 1000 W RMS per channel at 8 ohms for safe headroom without distortion.
Can I fly the speaker?
Yes, the cabinet has 8 x M8 threaded inserts for flying. Always use steel cables or shackles with a safety factor and consult a professional rigger for installation.
Does the speaker have a crossover built in?
Yes, a passive crossover at 1.8 kHz is built in, splitting the signal between the 15" woofer and the 1" compression driver.
What is the coverage angle?
The horn provides a 60° x 40° coverage angle. The horn can be rotated to change the orientation between horizontal and vertical.
How do I protect the speaker from feedback?
Position the microphone behind the main speakers and avoid pointing the horn directly at the microphone. Also, use a graphic equalizer to reduce frequencies that resonate.
Where can I find spare parts or get the speaker repaired?
Contact an authorized RCF service center for original spare parts and professional repairs. Refer to the manual's warranty page for qualified technicians.
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USER MANUAL HD 31EN RCF
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Product information
Brand : RCF
Model : HD 31EN
Category : Loudspeaker