1. Ifihan
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.
olusin 1: Iwaju view of the JBL Professional JRX218S 18-Inch Passive Subwoofer.
2. Alaye Aabo pataki
- Ka Awọn ilana: Daduro awọn ilana wọnyi fun itọkasi ọjọ iwaju.
- Awọn ikilọ Tẹtisi: Tẹle gbogbo awọn ikilo lori ọja ati ninu awọn ilana iṣẹ.
- Omi ati Ọrinrin: Maṣe lo ohun elo yii nitosi omi.
- Ninu: Mọ pẹlu asọ gbigbẹ nikan.
- Afẹfẹ: Ma ṣe dina eyikeyi awọn ṣiṣi atẹgun. Fi sori ẹrọ ni ibamu pẹlu awọn ilana ti olupese.
- Ooru: Maṣe fi sori ẹrọ nitosi awọn orisun ooru gẹgẹbi awọn imooru, awọn iforukọsilẹ ooru, awọn adiro, tabi awọn ohun elo miiran (pẹlu ampliifiers) ti o gbe ooru jade.
- Aabo Agbara-Okun: Dabobo okun agbara lati ma rin lori tabi pin, ni pataki ni awọn pilogi, awọn ohun elo irọrun, ati aaye nibiti wọn ti jade kuro ninu ohun elo naa.
- Awọn ẹya ara ẹrọ: Lo awọn asomọ/awọn ẹya ara ẹrọ ti a sọ pato nipasẹ olupese.
- Iṣagbesori: Lo nikan pẹlu rira, iduro, mẹta, akọmọ, tabi tabili ti a ti sọ tẹlẹ nipasẹ olupese, tabi ta pẹlu ohun elo. Nigbati a ba lo ọkọ ayọkẹlẹ kan, lo iṣọra nigbati o ba n gbe akojọpọ rira / ohun elo lati yago fun ipalara lati itọsi.
- Ṣiṣẹ: Tọkasi gbogbo iṣẹ si awọn oṣiṣẹ iṣẹ ti o peye. Iṣẹ nilo nigbati ohun elo ba ti bajẹ ni ọna eyikeyi, gẹgẹbi okun ipese agbara tabi plug ti bajẹ, omi ti ta silẹ tabi awọn nkan ti ṣubu sinu ẹrọ, ohun elo naa ti farahan si ojo tabi ọrinrin, ko ṣiṣẹ deede. , tabi ti lọ silẹ.
3. Ohun ti o wa ninu Apoti
Nígbà tí o bá ṣí àpótí náà, rí i dájú pé gbogbo àwọn èròjà náà wà níbẹ̀ àti pé wọ́n wà ní ipò tó dára:
- JBL Professional JRX218S 18-Inch Passive Subwoofer
- Afowoyi Olumulo (iwe-ipamọ yii)
Ti awọn ohun kan ba nsọnu tabi bajẹ, jọwọ kan si alagbata rẹ lẹsẹkẹsẹ.
4. Eto Itọsọna
4.1 Ibi
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 Awọn isopọ
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 Polu iṣagbesori
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. Awọn ilana Iṣiṣẹ
5.1 agbara mimu
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 System Integration
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. Itọju
6.1 Ninu
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. Laasigbotitusita
| Isoro | Owun to le Fa | Ojutu |
|---|---|---|
| Ko si Ijade ohun |
|
|
| Ohun Daru |
|
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| Weak or Insufficient Bass |
|
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8. Imọ ni pato
| Ẹya ara ẹrọ | Ẹ̀kúnrẹ́rẹ́ |
|---|---|
| Awoṣe | JRX218S |
| Agbọrọsọ Iru | Subwoofer palolo |
| Iwọn Iwọn Woofer | 18 inches |
| Power Handling (Continuous/Peak) | 350W / 1400W |
| Ipalara | 4 ohms |
| Iwọn igbohunsafẹfẹ (-10dB) | 34Hz - 250Hz |
| Idahun Igbohunsafẹfẹ (± 3dB) | 53Hz - 250Hz |
| Iye ti o ga julọ ti SPL | 133dB SPL |
| Asopọmọra | 2 x SpeakON NL-4 (parallel) |
| Ohun elo apade | 19 mm (.75 in) MDF with black carpet covering |
| Yiyan | 18-gauge perforated steel |
| Polu Oke | Top-mounted, cast aluminum 35 mm receptacle |
| Awọn iwọn (H x W x D) | 23.5" x 20.3" x 22" (597 mm x 516 mm x 559 mm) |
| Iwọn | 71 lbs (32.5 kg) |
Figure 4: Dimensions of the JRX218S subwoofer.
9. Atilẹyin ọja ati Support
9.1 atilẹyin ọja Alaye
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 webAaye fun alaye ofin ati ipo. Jeki ẹri rira rẹ fun awọn iṣeduro atilẹyin ọja.
9.2 Onibara Support
For technical assistance, service, or further inquiries, please contact JBL Professional customer support. Contact details can typically be found on the official JBL webaaye tabi ni apoti ọja.
