JBL Professional JRX218S 18-Inch Passive Subwoofer Instruction Manual

1. Inngangur

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.

Mynd 1: Framan view of the JBL Professional JRX218S 18-Inch Passive Subwoofer.

2. Mikilvægar öryggisupplýsingar

• Lestu leiðbeiningar: Geymdu þessar leiðbeiningar til síðari viðmiðunar.
• Takið eftir viðvörunum: Fylgdu öllum viðvörunum á vörunni og í notkunarleiðbeiningunum.
• Vatn og raki: Ekki nota þetta tæki nálægt vatni.
• Þrif: Hreinsið aðeins með þurrum klút.
• Loftræsting: Ekki loka neinum loftræstiopum. Setjið upp í samræmi við leiðbeiningar framleiðanda.
• Hiti: Ekki setja upp nálægt neinum hitagjöfum eins og ofnum, hitatöflum, ofnum eða öðrum tækjum (þ. amplyftara) sem framleiða hita.
• Rafmagnssnúruvernd: Verndaðu rafmagnssnúruna gegn því að ganga á hana eða klemma hana, sérstaklega við innstungur, innstungur og staðinn þar sem þau fara út úr tækinu.
• Aukabúnaður: Notaðu aðeins viðhengi/aukahluti sem framleiðandi tilgreinir.
• Uppsetning: Notið aðeins með körfu, standi, þrífóti, festingu eða borði sem framleiðandi tilgreinir eða er selt með tækinu. Þegar kerra er notuð skal gæta varúðar þegar kerran/tækjasamsetningin er flutt til að forðast meiðsli vegna þess að hún velti.
• Þjónusta: Látið alla þjónustu til hæfs þjónustufólks. Þjónusta er nauðsynleg þegar tækið hefur skemmst á einhvern hátt, svo sem að rafmagnssnúra eða kló er skemmd, vökvi hefur hellst niður eða hlutir hafa fallið inn í tækið, tækið hefur orðið fyrir rigningu eða raka, virkar ekki eðlilega , eða hefur verið fellt niður.

3. Hvað er í kassanum

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

• JBL Professional JRX218S 18-Inch Passive Subwoofer
• Notendahandbók (þetta skjal)

Ef einhverjir hlutir vantar eða eru skemmdir, vinsamlegast hafðu strax samband við söluaðila.

4. Uppsetningarleiðbeiningar

4.1 Staðsetning

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 Tengingar

The JRX218S is a passive subwoofer and requires an external ampTengdu þinn 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 Stöngfesting

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. Notkunarleiðbeiningar

5.1 Aflmeðferð

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 Kerfissamþætting

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. Viðhald

6.1 Þrif

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. Bilanagreining

8. Tæknilýsingar

Figure 4: Dimensions of the JRX218S subwoofer.

9. Ábyrgð og stuðningur

9.1 Upplýsingar um ábyrgð

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 webvefsíðunni til að fá nánari skilmála. Geymið kaupkvittunina vegna ábyrgðarkröfu.

9.2 Þjónustuver

For technical assistance, service, or further inquiries, please contact JBL Professional customer support. Contact details can typically be found on the official JBL websíðuna eða í vöruumbúðunum.