1. Entwodiksyon
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.
Figi 1: Devan view of the JBL Professional JRX218S 18-Inch Passive Subwoofer.
2. Enfòmasyon enpòtan sou sekirite
- Li Enstriksyon: Kenbe enstriksyon sa yo pou referans nan lavni.
- Fè atansyon avètisman yo: Swiv tout avètisman sou pwodwi a ak nan enstriksyon yo opere.
- Dlo ak imidite: Pa sèvi ak aparèy sa a toupre dlo.
- Netwayaj: Netwaye sèlman ak yon twal sèk.
- Vantilasyon: Pa bloke okenn ouvèti vantilasyon. Enstale li dapre enstriksyon manifakti a.
- Chalè: Pa enstale tou pre okenn sous chalè tankou radyatè, rejis chalè, recho, oswa lòt aparèy (tankou amplifiers) ki pwodui chalè.
- Pouvwa-kòd Pwoteksyon: Pwoteje kòd elektrik la pou yo pa mache oswa kwense, sitou nan priz, resipyan konvenyans, ak pwen kote yo sòti nan aparèy la.
- Pwodwi pou Telefòn: Sèvi ak sèlman atachman/akseswa manifakti a espesifye.
- Montaj: Itilize sèlman ak charyo a, kanpe, tripod, bracket, oswa tab ki espesifye pa manifakti a, oswa vann ak aparèy la. Lè yo itilize yon kabwa, pran prekosyon lè w ap deplase konbinezon kabwa a/aparèy la pou evite blese nan ranvèse.
- Sèvis: Refere tout sèvis yo bay pèsonèl sèvis kalifye. Reparasyon nesesè lè aparèy la domaje nenpòt fason, tankou kòd kouran oswa ploge domaje, likid koule oswa objè tonbe nan aparèy la, aparèy la te ekspoze a lapli oswa imidite, li pa fonksyone nòmalman. , oswa li te tonbe.
3. Ki sa ki nan bwat la
Upon opening the packaging, verify that all components are present and in good condition:
- JBL Professional JRX218S 18-Inch Passive Subwoofer
- Manyèl Itilizatè (dokiman sa a)
Si nenpòt atik ki manke oswa ki domaje, tanpri kontakte konsesyonè ou imedyatman.
4. Gid Enstalasyon
4.1 Plasman
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 Koneksyon
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 Poto Mounting
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. Operasyon Enstriksyon
5.1 Manyen pouvwa
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 Entegrasyon sistèm
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. Antretyen
6.1 Netwayaj
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.
NAN. Depanaj
| Pwoblèm | Kòz posib | Solisyon |
|---|---|---|
| Pa gen Sòti Son |
|
|
| Son defòme |
|
|
| Weak or Insufficient Bass |
|
|
8. Espesifikasyon teknik
| Karakteristik | Detay |
|---|---|
| Modèl | JRX218S |
| Kalite Oratè | Subwoofer pasif |
| Woofer Dyamèt | 18 pous |
| Power Handling (Continuous/Peak) | 350W / 1400W |
| Enpedans | 4 Ohms |
| Frekans Range (-10dB) | 34Hz - 250Hz |
| Repons frekans (± 3dB) | 53Hz - 250Hz |
| Maksimòm pik SPL | 133dB SPL |
| Koneksyon | 2 x SpeakON NL-4 (parallel) |
| Materyèl patiraj | 19 mm (.75 in) MDF with black carpet covering |
| Grille | 18-gauge perforated steel |
| Pòl Mount | Top-mounted, cast aluminum 35 mm receptacle |
| Dimansyon (H x W x P) | 23.5" x 20.3" x 22" (597 mm x 516 mm x 559 mm) |
| Pwa | 71 liv (32.5 kg) |
Figure 4: Dimensions of the JRX218S subwoofer.
9. Garanti ak sipò
9.1 Enfòmasyon sou Garanti
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 websit la pou plis detay sou tèm ak kondisyon yo. Kenbe prèv acha ou pou reklamasyon garanti.
9.2 Sipò pou Kliyan
For technical assistance, service, or further inquiries, please contact JBL Professional customer support. Contact details can typically be found on the official JBL websit oswa nan anbalaj pwodwi a.