JBL Professional JRX218S 18-Inch Passive Subwoofer Instruction Manual

1. Úvod

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.

Obrázok 1: Predná strana view of the JBL Professional JRX218S 18-Inch Passive Subwoofer.

2. Dôležité bezpečnostné informácie

• Prečítajte si pokyny: Uschovajte si tieto pokyny pre budúce použitie.
• Dbajte na varovania: Dodržujte všetky varovania na produkte a v návode na obsluhu.
• Voda a vlhkosť: Toto zariadenie nepoužívajte v blízkosti vody.
• Čistenie: Čistite iba suchou handričkou.
• Vetranie: Neblokujte žiadne vetracie otvory. Inštalujte podľa pokynov výrobcu.
• Teplo: Neinštalujte v blízkosti zdrojov tepla, ako sú radiátory, ohrievače, kachle alebo iné zariadenia (vrátane amplifikátory), ktoré produkujú teplo.
• Ochrana napájacieho kábla: Chráňte napájací kábel, aby sa po ňom nešliapalo alebo aby nebol priškripnutý, najmä pri zástrčkách, zásuvkách a v mieste, kde vychádza zo zariadenia.
• Príslušenstvo: Používajte iba doplnky/príslušenstvo špecifikované výrobcom.
• Montáž: Používajte iba s vozíkom, stojanom, statívom, držiakom alebo stolíkom špecifikovaným výrobcom alebo predávaným so zariadením. Pri používaní vozíka buďte opatrní pri presúvaní kombinácie vozík/zariadenie, aby ste predišli zraneniu prevrátením.
• servis: Všetok servis prenechajte kvalifikovanému servisnému personálu. Servis je potrebný, ak bolo zariadenie akýmkoľvek spôsobom poškodené, napríklad ak je poškodený napájací kábel alebo zástrčka, ak sa do zariadenia vyliala kvapalina alebo do neho spadli predmety, zariadenie bolo vystavené dažďu alebo vlhkosti, nefunguje normálne , alebo bola vypustená.

3. Čo je v krabici

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

• JBL Professional JRX218S 18-Inch Passive Subwoofer
• Používateľská príručka (tento dokument)

Ak niektoré položky chýbajú alebo sú poškodené, ihneď kontaktujte svojho predajcu.

4. Inštalačná príručka

4.1 Umiestnenie

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 Pripojenia

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 Montáž na stĺp

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. Návod na obsluhu

5.1 Manipulácia s napájaním

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 Systémová integrácia

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. Údržba

6.1 Čistenie

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. Riešenie problémov

8. Technické špecifikácie

Figure 4: Dimensions of the JRX218S subwoofer.

9. Záruka a podpora

9.1 Informácie o záruke

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 webPodrobné zmluvné podmienky nájdete na webovej stránke. Uschovajte si doklad o kúpe pre prípad reklamácie.

9.2 Zákaznícka podpora

For technical assistance, service, or further inquiries, please contact JBL Professional customer support. Contact details can typically be found on the official JBL webmieste alebo na obale produktu.