JBL Professional JRX218S 18-Inch Passive Subwoofer Instruction Manual

1. Kupu Whakataki

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.

Whakaahua 1: Mua view of the JBL Professional JRX218S 18-Inch Passive Subwoofer.

2. Nga Korero Haumaru Nui

• Pānui Tohutohu: Pupurihia enei tohutohu hei tohutoro a meake nei.
• Whakarongo Whakatupato: Whaia nga whakatupato katoa mo te hua me nga tohutohu whakahaere.
• Te wai me te makuku: Kaua e whakamahia tenei taputapu tata ki te wai.
• Te horoi: Horoia ki te kakahu maroke anake.
• Whakahau: Kaua e araia nga whakatuwheratanga hau. Tāutahia kia rite ki nga tohutohu a te kaihanga.
• wera: Kaua e whakauruhia ki te taha o nga puna wera penei i nga radiators, nga rehita wera, nga umu, me etahi atu taputapu (tae atu ki ampkaiwhakaora) e whakaputa ana i te wera.
• Tiaki Mana-Taura: Tiakihia te taura hiko kia kaua e hikoi, ka kowhakina mai ranei, ina koa ki nga moko, nga waahi waatea, me te waahi ka puta mai i te taputapu.
• Apatoko: Whakamahia anake nga taapiri / taputapu kua tohua e te kaihanga.
• Whakapiki: Whakamahia me te kaata, te turanga, te tripod, te taiapa, te teepu ranei i tohua e te kaihanga, i hokona ranei me te taputapu. Ina whakamahia he kaata, kia tupato ki te neke i te huinga o te kaata/taputapu kia kore ai e whara mai i te piko.
• Ratonga: Tukuna nga ratonga katoa ki nga kaimahi ratonga whai tohu. Ka hiahiatia he ratonga ina kua pakaru nga taputapu i tetahi huarahi, penei i te taura hiko, te mono ranei kua pakaru, kua maringi te wai, kua taka ranei nga taonga ki roto i te taputapu, kua kitea te taputapu ki te ua, ki te makuku ranei, kaore e mahi noa. , kua tukuna ranei.

3. He aha kei roto i te Pouaka

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

• JBL Professional JRX218S 18-Inch Passive Subwoofer
• Pukapuka Kaiwhakamahi (tenei tuhinga)

Mena kei te ngaro, kua pakaru ranei etahi mea, tena koa whakapiri atu ki to kaihoko.

4. Aratohu Tatūnga

4.1 Whakanoho

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 Hononga

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 Te Whakapuru Pou

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. Nga Tohutohu Whakahaere

5.1 Whakahaere Mana

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 Te Whakauru Pūnaha

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. Tiaki

6.1 Te horoi

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. Te Raru

8. Whakatakotoranga Hangarau

Figure 4: Dimensions of the JRX218S subwoofer.

9. Pūtāhui me te Tautoko

9.1 Nga Korero Whakaputanga

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 webpae mo nga tikanga me nga tikanga taipitopito. Puritia to tohu hoko mo nga kereme whakamana.

9.2 Tautoko Kiritaki

For technical assistance, service, or further inquiries, please contact JBL Professional customer support. Contact details can typically be found on the official JBL webte waahi kei roto ranei i te kohinga hua.