JBL Professional JRX218S 18-Inch Passive Subwoofer Instruction Manual

1. Ievads

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.

1. attēls. Priekšpuse view of the JBL Professional JRX218S 18-Inch Passive Subwoofer.

2. Svarīga drošības informācija

• Izlasiet instrukcijas: Saglabājiet šos norādījumus turpmākai uzziņai.
• Ievērojiet brīdinājumus: Ievērojiet visus brīdinājumus uz izstrādājuma un lietošanas instrukcijā.
• Ūdens un mitrums: Neizmantojiet šo ierīci ūdens tuvumā.
• Tīrīšana: Tīriet tikai ar sausu drānu.
• Ventilācija: Neaizbloķējiet ventilācijas atveres. Uzstādiet saskaņā ar ražotāja norādījumiem.
• Siltums: Neuzstādiet tuvu siltuma avotiem, piemēram, radiatoriem, siltuma reģistriem, krāsnīm vai citām ierīcēm (tostarp amppacēlāji), kas ražo siltumu.
• Strāvas vadu aizsardzība: Aizsargājiet strāvas vadu no uzkāpšanas vai saspiešanas, jo īpaši pie kontaktdakšām, kontaktligzdām un vietā, kur tie iziet no ierīces.
• Piederumi: Izmantojiet tikai ražotāja norādītos piederumus/piederumus.
• Montāža: Lietojiet tikai ar ratiņiem, statīvu, statīvu, kronšteinu vai galdu, ko norādījis ražotājs vai pārdod kopā ar ierīci. Kad tiek lietoti ratiņi, esiet piesardzīgs, pārvietojot ratiņu/ierīces kombināciju, lai izvairītos no savainojumiem apgāšanās rezultātā.
• Apkope: Visus apkopes darbus nododiet kvalificētam apkopes personālam. Apkope ir nepieciešama, ja ierīce ir jebkādā veidā bojāta, piemēram, ir bojāts barošanas vads vai kontaktdakša, aparātā ir izlijis šķidrums vai iekrituši priekšmeti, ierīce ir bijusi pakļauta lietus vai mitruma iedarbībai, nedarbojas normāli. , vai ir nomests.

3. Kas ir kastē

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

• JBL Professional JRX218S 18-Inch Passive Subwoofer
• Lietotāja rokasgrāmata (šis dokuments)

Ja kādas preces trūkst vai tās ir bojātas, lūdzu, nekavējoties sazinieties ar izplatītāju.

4. Iestatīšanas rokasgrāmata

4.1. Izvietošana

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 Savienojumi

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 Montāža uz staba

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. Lietošanas instrukcijas

5.1. Jaudas vadība

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 Sistēmas integrācija

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. Apkope

6.1. Tīrīšana

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. Traucējummeklēšana

8. Tehniskās specifikācijas

Figure 4: Dimensions of the JRX218S subwoofer.

9. Garantija un atbalsts

9.1 Informācija par garantiju

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 webDetalizētus noteikumus un nosacījumus skatiet vietnē. Saglabājiet pirkuma apliecinājumu garantijas prasību iesniegšanai.

9.2 Klientu atbalsts

For technical assistance, service, or further inquiries, please contact JBL Professional customer support. Contact details can typically be found on the official JBL webvietā vai produkta iepakojumā.