JBL Professional JRX218S 18-Inch Passive Subwoofer Instruction Manual

1. Réamhrá

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.

Fíor 1: Tosaigh view of the JBL Professional JRX218S 18-Inch Passive Subwoofer.

2. Eolas Tábhachtach Sábháilteachta

• Léigh Treoracha: Coimeád na treoracha seo le haghaidh tagartha sa todhchaí.
• Tabhair aird ar Rabhaidh: Lean gach rabhadh ar an táirge agus sna treoracha oibriúcháin.
• Uisce agus Taise: Ná húsáid an gaireas seo in aice le huisce.
• Glanadh: Glan ach amháin le éadach tirim.
• Aeráil: Ná bac aon oscailtí aerála. Suiteáil de réir threoracha an mhonaróra.
• Teas: Ná suiteáil in aice le haon fhoinsí teasa cosúil le radaitheoirí, cláir teasa, soirn, nó gaireas eile (lena n-áirítear ampleachtaitheoirí) a tháirgeann teas.
• Cosaint Corda Cumhachta: Cosain an téad cumhachta ó bheith ag siúl air nó á phionnadh, go háirithe ag plocóidí, gabhdáin áise, agus an pointe a dtéann siad amach as an ngaireas.
• Gabhálais: Ná húsáid ach ceangaltáin/gabhálais atá sonraithe ag an monaróir.
• Gléasta: Bain úsáid as ach leis an gcairt, an seastán, an tríchosach, an lúibín, nó an tábla atá sonraithe ag an monaróir, nó a dhíoltar leis an ngaireas. Nuair a úsáidtear tralaí, bí cúramach agus tú ag bogadh an chomhcheangail tralaí/ghairis chun gortú a sheachaint.
• Ag seirbhísiú: Déan gach seirbhísiú a tharchur chuig pearsanra seirbhíse cáilithe. Tá gá le seirbhísiú nuair a dhéantar damáiste don ghaireas ar bhealach ar bith, amhail corda soláthair cumhachta nó breiseán damáiste, doirteadh leacht nó rudaí tar éis titim isteach sa ghaireas, bhí an gaireas faoi lé báisteach nó taise, ní oibríonn sé de ghnáth. , nó gur thit.

3. Cad atá sa Bhosca

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

• JBL Professional JRX218S 18-Inch Passive Subwoofer
• Lámhleabhar Úsáideora (an doiciméad seo)

Má tá aon rud in easnamh nó má tá damáiste déanta dóibh, déan teagmháil le do dhéileálaí láithreach.

4. Treoir Socraithe

4.1 Socrúchán

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 Naisc

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 Feistiú Cuaille

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. Treoracha Oibriúcháin

5.1 Láimhseáil Cumhachta

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 Comhtháthú Córais

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. Cothabháil

6.1 Glanadh

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. Fabhtcheartú

8. Sonraíochtaí Teicniúla

Figure 4: Dimensions of the JRX218S subwoofer.

9. Barántas agus Tacaíocht

9.1 Faisnéis Bharántas

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 websuíomh gréasáin le haghaidh téarmaí agus coinníollacha mionsonraithe. Coinnigh do chruthúnas ceannaigh le haghaidh éilimh bharántais.

9.2 Tacaíocht do Chustaiméirí

For technical assistance, service, or further inquiries, please contact JBL Professional customer support. Contact details can typically be found on the official JBL websuíomh nó i bpacáistiú an táirge.