JBL Professional JRX218S 18-Inch Passive Subwoofer Instruction Manual

1. Sissejuhatus

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.

Joonis 1: Esiosa view of the JBL Professional JRX218S 18-Inch Passive Subwoofer.

2. Oluline ohutusteave

• Lugege juhiseid: Hoidke need juhised edaspidiseks kasutamiseks alles.
• Pange tähele hoiatusi: Järgige kõiki tootel ja kasutusjuhendis toodud hoiatusi.
• Vesi ja niiskus: Ärge kasutage seda seadet vee lähedal.
• Puhastamine: Puhastage ainult kuiva lapiga.
• Ventilatsioon: Ärge blokeerige ühtegi ventilatsiooniava. Paigaldage vastavalt tootja juhistele.
• Kuumus: Ärge paigaldage soojusallikate, näiteks radiaatorite, küttekehade, ahjude või muude seadmete (sh amptõsteseadmed), mis toodavad soojust.
• Toitejuhtme kaitse: Kaitske toitejuhet selle peale kõndimise või muljumise eest, eriti pistikute, pistikupesade ja nende seadmest väljumise kohta.
• Aksessuaarid: Kasutage ainult tootja poolt määratud tarvikuid/tarvikuid.
• Paigaldamine: Kasutage ainult tootja poolt määratud või koos seadmega müüdava käru, aluse, statiivi, kronsteini või lauaga. Käru kasutamisel olge käru/seadme kombinatsiooni teisaldamisel ettevaatlik, et vältida ümberminekust põhjustatud vigastusi.
• Teenindus: Andke kõik hooldustööd kvalifitseeritud teeninduspersonalile. Hooldus on vajalik, kui seade on mingil viisil kahjustatud, nt toitejuhe või pistik on kahjustatud, vedelikku või seadmesse on kukkunud esemeid, seade on sattunud vihma või niiskuse kätte, ei tööta normaalselt või on maha kukkunud.

3. Mis on karbis

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

• JBL Professional JRX218S 18-Inch Passive Subwoofer
• Kasutusjuhend (see dokument)

Kui mõni element on puudu või kahjustatud, võtke kohe ühendust edasimüüjaga.

4. Seadistusjuhend

4.1 Paigutus

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 Ühendused

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 Vardakinnitus

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. Kasutusjuhised

5.1 Toitehaldus

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 Süsteemi integreerimine

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. Hooldus

6.1 Puhastamine

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. Veaotsing

8. Tehnilised andmed

Figure 4: Dimensions of the JRX218S subwoofer.

9. Garantii ja tugi

9.1 Garantii teave

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 webTäpsemate tingimustega saate tutvuda veebilehel. Garantiinõuete korral hoidke ostutõend alles.

9.2 Klienditugi

For technical assistance, service, or further inquiries, please contact JBL Professional customer support. Contact details can typically be found on the official JBL websaidil või toote pakendil.