JBL JRX218S

JBL Professional JRX218S 18-Inch Passive Subwoofer Instruction Manual

Model: JRX218S

1. 서론

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.

JBL Professional JRX218S 18-Inch Passive Subwoofer front view

그림 1: 전면 view of the JBL Professional JRX218S 18-Inch Passive Subwoofer.

2. 중요한 안전 정보

  • 지침을 읽어보세요: 향후 참고를 위해 이 지침을 보관해 두십시오.
  • 경고를 주의하세요: 제품 및 작동 지침에 있는 모든 경고를 따르십시오.
  • 물과 습기: 이 기기를 물 근처에서 사용하지 마십시오.
  • 청소: 마른 천으로만 닦으십시오.
  • 통풍: 환기구를 막지 마십시오. 제조업체의 지침에 따라 설치하십시오.
  • 열: 라디에이터, 난방 조절기, 스토브 또는 기타 장치(다음을 포함)와 같은 열원 근처에 설치하지 마십시오. amp열을 생성하는 발전기.
  • 전원 코드 보호 : 전원 코드가 밟히거나 끼지 않도록 보호하세요. 특히 플러그, 편의용 콘센트 및 기기에서 나오는 부분은 보호하세요.
  • 부속품: 제조사가 지정한 부속품/액세서리만 사용하세요.
  • 설치: 제조업체에서 지정하거나 장비와 함께 판매한 카트, 스탠드, 삼각대, 브래킷 또는 테이블과 함께만 사용하십시오. 카트를 사용하는 경우 카트/장비 조합을 이동할 때 넘어져 부상을 입지 않도록 주의하십시오.
  • 서비스: 모든 서비스는 자격을 갖춘 서비스 담당자에게 의뢰하십시오. 전원 코드나 플러그가 손상되었거나, 액체가 쏟아졌거나, 물체가 기기에 떨어졌거나, 기기가 비나 습기에 노출되었거나, 정상적으로 작동하지 않거나, 떨어졌을 때와 같이 기기가 어떤 식으로든 손상된 경우 서비스가 필요합니다.

3. 상자 안에 무엇이 들어있나요?

포장을 열 때 모든 구성품이 들어 있고 상태가 양호한지 확인하세요.

  • JBL Professional JRX218S 18-Inch Passive Subwoofer
  • 사용 설명서 (본 문서)

누락되거나 손상된 품목이 있는 경우 즉시 대리점에 문의하십시오.

4. 설정 가이드

4.1 배치

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 연결

The JRX218S is a passive subwoofer and requires an external amp증폭기. 연결하세요 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.

JBL Professional JRX218S 18-Inch Passive Subwoofer rear panel with SpeakON inputs

Figure 2: Rear panel showing SpeakON input connectors.

4.3 기둥 장착

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.

JBL Professional JRX218S 18-Inch Passive Subwoofer with a pole-mounted speaker

Figure 3: JRX218S with an optional pole-mounted speaker (speaker and pole not included).

5. 사용 설명서

5.1 전원 처리

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 시스템 통합

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. 유지관리

6.1 청소

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. 문제 해결

문제가능한 원인해결책
소리가 출력되지 않음
  • 잘못된 배선이나 느슨한 연결.
  • Amp앰프 전원이 켜지지 않거나 고장났습니다.
  • Crossover settings incorrect (no low frequencies sent).
  • Check all SpeakON connections between amp리퍼와 서브우퍼.
  • 확인하다 amp앰프의 출력 및 기능.
  • Ensure your audio processor or mixer is sending low-frequency signals to the subwoofer output.
왜곡된 소리
  • Overdriving the subwoofer (too much power).
  • Amp리퍼 클리핑.
  • 크로스오버 주파수가 올바르지 않습니다.
  • Reduce input level to the amp리퍼 또는 서브우퍼.
  • 확인하다 amplifier gain settings; ensure it's not clipping.
  • Adjust crossover to send only appropriate low frequencies to the subwoofer.
약하거나 불충분한 저음
  • Subwoofer phase issue.
  • 부적절한 배치.
  • Amplifier not powerful enough.
  • 만약 당신의 amplifier or processor has a phase switch, try inverting the phase.
  • Experiment with different subwoofer placements (e.g., closer to a wall or corner).
  • 귀하의 것을 확인하십시오 amplifier provides sufficient power for the subwoofer's continuous rating.

8. 기술 사양

특징세부 사항
모델JRX218S
스피커 유형패시브 서브우퍼
우퍼 직경18 인치
Power Handling (Continuous/Peak)350W / 1400W
임피던스4옴
주파수 범위(-10dB)34Hz - 250Hz
주파수 응답(±3dB)53Hz - 250Hz
최대 피크 SPL133dB 음압
연결성2 x SpeakON NL-4 (parallel)
인클로저 재료19 mm (.75 in) MDF with black carpet covering
그릴18-gauge perforated steel
폴 마운트Top-mounted, cast aluminum 35 mm receptacle
치수(높이 x 너비 x 깊이)23.5" x 20.3" x 22" (597mm x 516mm x 559mm)
무게71파운드(32.5kg)
JBL Professional JRX218S 18-Inch Passive Subwoofer dimensions diagram

Figure 4: Dimensions of the JRX218S subwoofer.

9. 보증 및 지원

9.1 보증 정보

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 web자세한 이용 약관은 해당 사이트를 참조하세요. 보증 청구를 위해 구매 증빙 자료를 보관하세요.

9.2 고객 지원

For technical assistance, service, or further inquiries, please contact JBL Professional customer support. Contact details can typically be found on the official JBL web사이트 또는 제품 포장.

© 2024 JBL Professional. 모든 권리 보유.

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