JBL Professional JRX218S 18-Inch Passive Subwoofer Instruction Manual

1. Pambuka

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.

Gambar 1: Ngarep view of the JBL Professional JRX218S 18-Inch Passive Subwoofer.

2. Informasi Safety Penting

• Maca instruksi: Simpen pandhuan iki kanggo referensi ing mangsa ngarep.
• Nggatekake Peringatan: Tindakake kabeh bebaya ing prodhuk lan ing pandhuan operasi.
• Banyu lan Kelembapan: Aja nggunakake piranti iki cedhak banyu.
• Reresik: Resik mung nganggo gombal garing.
• Ventilasi: Aja ngalangi bukaan ventilasi. Instal miturut pandhuan pabrikan.
• panas: Aja masang ing cedhak sumber panas kayata radiator, register panas, kompor, utawa piranti liyane (kalebu ampliifiers) sing ngasilake panas.
• Perlindhungan Kabel Daya: Nglindhungi kabel daya supaya ora bisa mlaku utawa pinched, utamané ing colokan, wadhah penak, lan titik metu saka apparatus.
• Aksesoris: Gunakake mung lampiran / aksesoris sing ditemtokake dening pabrikan.
• Pemasangan: Gunakake mung karo cart, stand, tripod, krenjang, utawa meja sing ditemtokake dening pabrikan, utawa didol karo apparatus. Nalika cart digunakake, ati-ati nalika mindhah kombinasi cart / apparatus supaya ora ciloko saka tip-over.
• Layanan: Waca kabeh layanan menyang personel layanan sing mumpuni. Servis dibutuhake nalika piranti wis rusak kanthi cara apa wae, kayata kabel catu daya utawa plug rusak, cairan tumpah utawa obyek tiba ing piranti, aparat wis kena udan utawa kelembapan, ora bisa digunakake kanthi normal. , utawa wis dropped.

3. Apa ing Box

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

• JBL Professional JRX218S 18-Inch Passive Subwoofer
• Manual pangguna (dokumen iki)

Yen ana barang sing ilang utawa rusak, hubungi dealer sampeyan langsung.

4. Pandhuan Setup

4.1 Panggonan

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 Sambungan

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 ampliifier bisa nggerakake beban 4-ohm kanthi aman.

Figure 2: Rear panel showing SpeakON input connectors.

4.3 POINT

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. Instruksi Operasi

5.1 Power Nangani

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 Integrasi Sistem

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. Pangopènan

6.1 Reresik

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. Ngatasi masalah

8. Spesifikasi Teknis

Figure 4: Dimensions of the JRX218S subwoofer.

9. Warranty lan Dhukungan

9.1 Informasi babar pisan

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 websitus kanggo syarat lan kahanan rinci. Simpen bukti tuku kanggo klaim garansi.

9.2 Dhukungan Pelanggan

For technical assistance, service, or further inquiries, please contact JBL Professional customer support. Contact details can typically be found on the official JBL websitus utawa ing kemasan produk.