PRORECK PR18 18-inch 2000W Active Powered PA DJ Subwoofer Cabinet Instruction Manual

1. Introduzione

Thank you for choosing the PRORECK PR18 Active Powered Subwoofer. This 18-inch subwoofer is designed to provide powerful bass reinforcement for various audio applications, including parties, bars, weddings, meetings, speeches, churches, gymnastics, conferences, and home theaters. This manual provides essential information for the safe and efficient operation of your subwoofer.

Figura 1: Fronte view of the PRORECK PR18 Active Powered Subwoofer.

2. Informazioni sulla sicurezza

Si prega di leggere attentamente tutte le istruzioni di sicurezza prima di utilizzare questo prodotto. Conservare il presente manuale per riferimento futuro.

• Fonte di energia: Connect the unit only to a power supply of the type specified in this manual or on the unit.
• Ventilazione: Assicurare una ventilazione adeguata. Non ostruire le aperture di ventilazione.
• Acqua e umidità: Non esporre l'unità a pioggia o umidità. Non posizionare oggetti contenenti liquidi sull'unità.
• Calore: Do not place the unit near heat sources such as radiators, heat registers, stoves, or other heat-producing appliances.
• Manutenzione: Non tentare di riparare questo prodotto da soli. Affidare tutte le operazioni di manutenzione a personale di assistenza qualificato.
• Posizionamento: Place the subwoofer on a stable, level surface. Use the pole mount for satellite speakers as intended.

3. Contenuto della confezione

The PRORECK PR18 package includes:

• One (1) PRORECK PR18 Active Powered Subwoofer Cabinet

Figure 2: The PRORECK PR18 Subwoofer as packaged.

4. Prodotto finitoview

The PRORECK PR18 is an active powered subwoofer designed for robust sound reinforcement. It features an 18-inch low-frequency driver with a 3-inch voice coil, delivering 400 Watts RMS / 800 Watts Program / 2000 Watts Peak power. The unit incorporates a built-in Class-D amplifier for deep stereo sound. Its housing is constructed from plywood with a special impact-resistant material to reduce resonance and ensure durability.

Caratteristiche principali:

• 18-inch woofer with 60oz magnet and 3" voice coil.
• Balanced XLR combo input and stereo RCA input.
• Stereo RCA output and full range XLR combo output.
• Filtered XLR output for audio signals between 100Hz and 20KHz.
• Selectable phase from 0° to 180° for multiple subwoofer setups.
• Adjustable crossover from 40Hz-160Hz.
• Power-on and max volume indicators.
• Two side handles for easy transport.

Figure 3: Rear panel of the PRORECK PR18 Subwoofer, showing inputs, outputs, and controls.

Figure 4: Internal construction of the PRORECK PR18 Subwoofer, highlighting its plywood build.

5. Impostazione

5.1 Posizionamento

Position the subwoofer on a stable, flat surface. The unit is equipped with a pole mount on top, allowing for the placement of a satellite speaker (not included) directly above it for an integrated sound system. The two side handles facilitate easy transport and positioning.

5.2 Connessioni

Refer to Figure 3 for the rear panel layout.

1. Ingresso: Connect your audio source (mixer, DJ controller, etc.) to the subwoofer using either the balanced XLR combo inputs or the stereo RCA inputs. The XLR combo input accepts both XLR and 1/4" TRS connectors.
2. Produzione:
   • Full Range XLR Output: Use these outputs to send the full audio signal to other subwoofers or full-range speakers.
   • Filtered XLR Output (High Pass): These outputs provide an audio signal with frequencies above 100Hz (up to 20KHz), ideal for connecting to satellite speakers to prevent them from reproducing low bass frequencies.
   • Uscita stereo RCA: Provides a stereo RCA signal for connecting to other devices.
3. Energia: Connect the power cable to the AC IN port and then to a suitable power outlet. Ensure the power switch is in the OFF position before connecting.

6. Istruzioni per l'uso

6.1 Accensione/spegnimento

After all connections are made, switch the power button to the ON position. The power-on indicator light will illuminate.

6.2 Controlli

The rear panel (Figure 3) features the following controls:

• Manopola del volume: Adjusts the overall output level of the subwoofer. Start with a low volume and gradually increase it.
• Crossover Knob (40Hz-160Hz): Sets the upper frequency limit for the subwoofer. Frequencies above this setting will be sent to the filtered XLR outputs. Adjust this to blend seamlessly with your main speakers.
• Phase Switch (0°-180°): Allows you to invert the phase of the subwoofer's output. This is useful for optimizing bass response when using multiple subwoofers or when the subwoofer is positioned at a different distance from the main speakers. Experiment with both settings to find the best sound.
• Indicatori: Power-on and max volume (clip) indicators provide visual feedback on the unit's status and signal level. If the clip indicator frequently illuminates, reduce the volume to prevent distortion and potential damage.

6.3 Typical Usage

The PR18 is ideal for enhancing the low-frequency response of any PA system. For optimal performance, ensure the subwoofer's crossover frequency is set appropriately relative to your main speakers. For example, if your main speakers handle frequencies down to 80Hz, set the subwoofer's crossover to around 80-100Hz.

7. Manutenzione

Proper maintenance ensures the longevity and optimal performance of your PRORECK PR18 subwoofer.

• Pulizia: Use a soft, dry cloth to clean the exterior of the subwoofer. Do not use abrasive cleaners, waxes, or solvents.
• Magazzinaggio: When not in use for extended periods, store the subwoofer in a cool, dry place, away from direct sunlight and extreme temperatures.
• Ispezione: Controllare periodicamente tutti i cavi e i collegamenti per verificare la presenza di eventuali segni di usura o danni.
• Alloggiamento: The plywood housing with special impact-resistant material is designed for durability. Avoid dropping or subjecting the unit to severe impacts.

8. Risoluzione Dei Problemi

If you encounter issues with your PRORECK PR18 subwoofer, refer to the following common troubleshooting steps:

• Nessun potere:
  • Assicurarsi che il cavo di alimentazione sia collegato saldamente sia al subwoofer sia a una presa di corrente funzionante.
  • Verificare che l'interruttore di alimentazione sul pannello posteriore sia in posizione "ON".
  • Verificare che la presa di corrente funzioni collegandovi un altro dispositivo.
• Nessun suono:
  • Check all audio input and output cables are correctly and securely connected.
  • Ensure the volume knob on the subwoofer is turned up.
  • Verify the audio source (mixer, controller) is sending a signal and its volume is adequate.
  • Check the crossover and phase settings. Incorrect settings might lead to perceived lack of bass.
• Suono distorto:
  • Reduce the volume on the subwoofer and/or the audio source. The clip indicator should not be constantly lit.
  • Assicurarsi che tutti i cavi siano in buone condizioni e non danneggiati.
• Rumore di crepitio:
  • Check for loose screws on the grille or amplifier mount. Tighten if necessary.
  • Ensure no external objects are vibrating against the subwoofer cabinet.

If the issue persists after following these steps, please contact PRORECK customer support.

9. Specifiche

10. Garanzia

The PRORECK PR18 Subwoofer comes with a Garanzia di un anno from the date of purchase. This warranty covers manufacturing defects and malfunctions under normal use. Please retain your proof of purchase for warranty claims. For detailed warranty terms and conditions, refer to the documentation included with your product or contact PRORECK customer support.

11. Supporto

For technical assistance, troubleshooting beyond this manual, or warranty inquiries, please contact PRORECK customer support through their official website or the contact information provided with your purchase. Always provide your product model (PR18) and proof of purchase when seeking support.