JBL Professional JRX218S 18-Inch Passive Subwoofer Instruction Manual

1. Inleiding

This manual provides essential information for the proper setup, operation, and maintenance of your JBL Professional JRX218S 18-Inch Passive Subwoofer. Please read this manual thoroughly before using the product to ensure optimal performance and safety. The JRX218S is designed to deliver powerful low-frequency sound for various professional audio applications.

Figuur 1: Voorkant view of the JBL Professional JRX218S 18-Inch Passive Subwoofer.

2. Belangrike veiligheidsinligting

• Lees instruksies: Bewaar hierdie instruksies vir toekomstige verwysing.
• Let op waarskuwings: Volg alle waarskuwings op die produk en in die gebruiksinstruksies.
• Water en vog: Moenie hierdie toestel naby water gebruik nie.
• Skoonmaak: Maak slegs skoon met 'n droë lap.
• Ventilasie: Moenie enige ventilasie-openinge blokkeer nie. Installeer volgens die vervaardiger se instruksies.
• Hitte: Moenie naby enige hittebronne soos verkoelers, hitteregisters, stowe of ander toerusting (insluitend ampversterkers) wat hitte produseer.
• Kragkoordbeskerming: Beskerm die kragkoord teen geloop of vasgeknyp, veral by proppe, geriefshouers en die punt waar dit uit die apparaat kom.
• Bykomstighede: Gebruik slegs aanhegsels/bykomstighede wat deur die vervaardiger gespesifiseer word.
• Montering: Gebruik slegs met die wa, staander, driepoot, bracket of tafel wat deur die vervaardiger gespesifiseer is, of saam met die apparaat verkoop word. Wanneer 'n wa gebruik word, wees versigtig wanneer die kar/apparaat-kombinasie beweeg word om besering as gevolg van kantel te voorkom.
• Diens: Verwys alle diens na gekwalifiseerde dienspersoneel. Versorging word vereis wanneer die apparaat op enige manier beskadig is, soos kragtoevoerkoord of prop beskadig is, vloeistof gemors is of voorwerpe in die apparaat geval het, die apparaat aan reën of vog blootgestel is, nie normaal werk nie. , of laat vaar is.

3. Wat is in die boks

Upon opening the packaging, verify that all components are present and in good condition:

• JBL Professional JRX218S 18-Inch Passive Subwoofer
• Gebruikershandleiding (hierdie dokument)

Indien enige items ontbreek of beskadig is, kontak asseblief jou handelaar onmiddellik.

4. Opstelgids

4.1 Plasing

For optimal bass response, place the JRX218S subwoofer on a stable, flat surface. Corner placement can often enhance bass output, but experiment with different positions to find the best sound for your environment. Ensure adequate space around the unit for proper ventilation.

4.2 Verbindings

The JRX218S is a passive subwoofer and requires an external amplifier. Connect your amplifier's output to one of the SpeakON inputs on the rear panel of the subwoofer. The two SpeakON inputs are wired in parallel, allowing for easy daisy-chaining to another passive speaker or subwoofer. Ensure your amplifier can safely drive a 4-ohm load.

Figure 2: Rear panel showing SpeakON input connectors.

4.3 Paalmontering

The subwoofer features a top-mounted, cast aluminum 35 mm pole mount receptacle. This allows you to mount a mid/high speaker cabinet directly above the subwoofer using an optional SS3BK pole (sold separately), creating a compact and integrated full-range sound system. Ensure the pole and mounted speaker are stable and secure.

Figure 3: JRX218S with an optional pole-mounted speaker (speaker and pole not included).

5. Bedryfsinstruksies

5.1 Kraghantering

The JRX218S has a continuous power handling capacity of 350 Watts and a peak power handling of 1400 Watts. It is crucial to match your amplifier's output to these specifications to prevent damage to the subwoofer. Overpowering or underpowering can lead to poor performance or component failure.

5.2 Impedance and Frequency Response

The subwoofer operates at an impedance of 4 ohms. Its frequency range is 34Hz-250Hz (-10dB), with a frequency response of 53Hz-250Hz (±3dB). This range is optimized for deep bass reproduction.

5.3 Stelselintegrasie

When integrating the JRX218S into a larger PA system, use an external crossover to send only low-frequency signals to the subwoofer. This ensures efficient operation and prevents the subwoofer from attempting to reproduce frequencies outside its optimal range, which can lead to distortion and reduced performance.

6. Onderhoud

6.1 Skoonmaak

To maintain the appearance and performance of your subwoofer, regularly wipe the exterior with a soft, dry cloth. Avoid using abrasive cleaners, solvents, or excessive moisture, as these can damage the carpet covering and internal components.

6.2 Enclosure and Grille

The rugged enclosure is constructed from 19 mm (.75 in) Medium Density Fiberboard (MDF) and covered in black carpet. The 18-gauge perforated steel grille protects the speaker components. Inspect these periodically for any signs of damage. Minor scuffs on the carpet can often be brushed out. Do not attempt to remove the grille unless you are qualified service personnel.

7. Probleemoplossing

8. Tegniese spesifikasies

Figure 4: Dimensions of the JRX218S subwoofer.

9. Waarborg en Ondersteuning

9.1 Waarborginligting

The JBL Professional JRX218S 18-Inch Passive Subwoofer comes with a manufacturer's limited warranty. Please refer to the warranty card included with your product or visit the official JBL Professional webwebwerf vir gedetailleerde bepalings en voorwaardes. Bewaar u bewys van aankoop vir waarborgeise.

9.2 Kliëntediens

For technical assistance, service, or further inquiries, please contact JBL Professional customer support. Contact details can typically be found on the official JBL webwebwerf of in die produkverpakking.