JBL Professional JRX218S 18-Inch Passive Subwoofer Instruction Manual

1. Rhagymadrodd

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.

Ffigur 1: Blaen view of the JBL Professional JRX218S 18-Inch Passive Subwoofer.

2. Gwybodaeth Bwysig am Ddiogelwch

• Darllenwch y Cyfarwyddiadau: Cadwch y cyfarwyddiadau hyn er mwyn cyfeirio atynt yn y dyfodol.
• Sylwch ar y Rhybuddion: Dilynwch yr holl rybuddion ar y cynnyrch ac yn y cyfarwyddiadau gweithredu.
• Dŵr a lleithder: Peidiwch â defnyddio'r offer hwn ger dŵr.
• Glanhau: Glanhewch â lliain sych yn unig.
• Awyru: Peidiwch â rhwystro unrhyw agoriadau awyru. Gosodwch yn unol â chyfarwyddiadau'r gwneuthurwr.
• Gwres: Peidiwch â gosod yn agos at unrhyw ffynonellau gwres fel rheiddiaduron, cofrestrau gwres, stofiau, neu gyfarpar arall (gan gynnwys amplifyddion) sy'n cynhyrchu gwres.
• Amddiffyn Cord-Pwer: Amddiffynnwch y llinyn pŵer rhag cael ei gerdded ymlaen neu ei binsio, yn enwedig wrth blygiau, cynwysyddion cyfleustra, a'r pwynt lle maent yn gadael y cyfarpar.
• Ategolion: Defnyddiwch atodiadau/ategolion a nodir gan y gwneuthurwr yn unig.
• Mowntio: Defnyddiwch gyda'r drol, stand, trybedd, braced, neu fwrdd a bennir gan y gwneuthurwr yn unig, neu a werthir gyda'r offer. Pan ddefnyddir trol, byddwch yn ofalus wrth symud y cyfuniad cart/offer i osgoi anaf rhag tip-over.
• Gwasanaethu: Cyfeirio pob gwasanaeth i bersonél gwasanaeth cymwys. Mae angen gwasanaethu pan fydd y cyfarpar wedi'i ddifrodi mewn unrhyw ffordd, fel llinyn cyflenwad pŵer neu blwg wedi'i ddifrodi, hylif wedi'i ollwng neu wrthrychau wedi disgyn i'r offer, mae'r cyfarpar wedi bod yn agored i law neu leithder, nid yw'n gweithredu'n normal , neu wedi cael ei ollwng.

3. Beth sydd yn y Bocs

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

• JBL Professional JRX218S 18-Inch Passive Subwoofer
• Llawlyfr Defnyddiwr (y ddogfen hon)

Os oes unrhyw eitemau ar goll neu wedi'u difrodi, cysylltwch â'ch deliwr ar unwaith.

4. Canllaw Gosod

4.1 Lleoliad

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 Cysylltiad

The JRX218S is a passive subwoofer and requires an external amplifer. Cysylltwch eich 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 Mowntio polyn

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. Cyfarwyddiadau Gweithredu

5.1 Trin Pŵer

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 Integreiddio System

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. cynnal

6.1 Glanhau

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. Datrys Problemau

8. Manylebau Technegol

Figure 4: Dimensions of the JRX218S subwoofer.

9. Gwarant a Chefnogaeth

9.1 Gwybodaeth Gwarant

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 websafle am delerau ac amodau manwl. Cadwch eich prawf prynu ar gyfer hawliadau gwarant.

9.2 Cefnogaeth i Gwsmeriaid

For technical assistance, service, or further inquiries, please contact JBL Professional customer support. Contact details can typically be found on the official JBL websafle neu yn y pecyn cynnyrch.