1. 서론
The JBL ST 450 TRIO Super Tweeter is designed for high-frequency sound reproduction with efficiency and low distortion. This component is suitable for various audio applications, including PA systems, automotive mini trios, and general sound reinforcement systems. Its phenolic diaphragm ensures a clear high-frequency timbre, while the aluminum ring magnetic assembly provides definition and efficiency across its operational range.
2. 안전 정보
Please read all safety instructions before installing and operating this product. Failure to follow these instructions may result in injury or damage to the product or other equipment.
- 전기 안전: Ensure all power connections are made correctly and securely. Disconnect power before making any connections or disconnections. Incorrect wiring can cause electrical shock or damage to your audio system.
- 청력 보호: 높은 음압에 장시간 노출되면 영구적인 청력 손상을 초래할 수 있습니다. 볼륨 조절 시 주의하세요.
- 설치: Always mount the tweeter securely to prevent it from becoming a projectile in case of sudden stops or accidents. Consult a professional installer if you are unsure about any aspect of the installation process.
- 통풍: Ensure adequate ventilation around the tweeter to prevent overheating, especially during extended use at high power levels.
3. 패키지 내용
패키지에 모든 품목이 들어 있는지 확인하세요.
- 1 x JBL ST 450 TRIO Super Tweeter
- 기술 브로셔
- 보증서
- Bearing (as included component)
4. 설정 및 설치
Proper installation is crucial for optimal performance and safety. If you are not confident in your ability to install this product, seek assistance from a qualified professional.
4.1 장착
The ST 450 TRIO is designed for flush mount installation. Choose a mounting location that provides adequate space for the tweeter and its wiring, and ensures it is securely fastened to a stable surface. Avoid locations where the tweeter could be exposed to excessive moisture or direct sunlight.

이미지 1: 측면 view of the JBL ST 450 TRIO Super Tweeter, illustrating its flush mount design and connection terminals.
4.2 배선
The tweeter has a rated impedance of 8 Ohms. Connect the tweeter to an appropriate amplifier output, ensuring that the amplifier can handle an 8-Ohm load. Pay close attention to polarity (+ and -) to ensure correct phase alignment with other speakers in your system. Incorrect polarity can lead to reduced sound quality.

이미지 2: 각도 view of the JBL ST 450 TRIO Super Tweeter, highlighting the robust magnet structure and clearly marked connection points for wiring.
It is recommended to use a high-pass filter to protect the tweeter from low frequencies, which can cause damage. Refer to your amplifier or crossover unit's manual for proper filter settings. The system frequency response for this tweeter is 4000 to 20000 Hz.
5. 사용 설명서
Once installed and wired correctly, the JBL ST 450 TRIO Super Tweeter is ready for operation.
- 파워 핸들링: The tweeter has an RMS Power of 300W and a Peak Power of 600W. Ensure that the amplifier's output power does not exceed these limits to prevent damage.
- 볼륨 조절: Start with a low volume level and gradually increase it to your desired listening level. Avoid operating the system at excessively high volumes for extended periods.
- 사운드 조정: Use your audio system's equalizer or tone controls to fine-tune the high-frequency output to your preference. Remember that the tweeter is designed to reproduce high frequencies, so excessive boosting of treble may lead to harsh sound or potential damage.
6. 유지관리
The JBL ST 450 TRIO Super Tweeter requires minimal maintenance to ensure long-lasting performance.
- 청소: Use a soft, dry cloth to gently wipe the surface of the tweeter. Do not use abrasive cleaners, solvents, or excessive moisture, as these can damage the finish or internal components.
- 점검: Periodically check the wiring connections to ensure they remain secure. Inspect the tweeter for any signs of physical damage.
7. 문제 해결
If you experience issues with your JBL ST 450 TRIO Super Tweeter, refer to the following common problems and solutions:
- 소리 없음:
- 모든 배선 연결부를 확인하십시오. amplifier to the tweeter for proper contact and polarity.
- 확인하십시오 amplifier의 전원이 켜져 있고 올바르게 작동하고 있습니다.
- 오디오 소스가 재생 중인지, 볼륨이 충분히 큰지 확인하십시오.
- 왜곡된 소리:
- 볼륨 레벨을 줄이세요. 왜곡은 종종 다음과 같은 경우에 발생합니다. amplifier or tweeter is overdriven.
- Check for proper high-pass filter settings to prevent low frequencies from reaching the tweeter.
- Inspect the tweeter for any physical damage to the diaphragm.
- 간헐적인 소리:
- Check for loose wiring connections at both the tweeter and the amp리퍼.
- Ensure there are no shorts in the wiring.
If these steps do not resolve the issue, contact customer support or a qualified service technician.
8. 사양

이미지 3: 상단 view of the JBL ST 450 TRIO Super Tweeter, displaying the brand and model details.
| 특징 | 사양 |
|---|---|
| 모델명 | ST 450 TRIO |
| 스피커 유형 | 트위터 |
| 정격 임피던스 | 8옴 |
| 자석 무게 | 470g |
| Magnetic Assembly Weight | 1,200g |
| 스피커 무게 | 1,700g |
| 피크 파워 | 최대 600W |
| RMS 전원 | 300와트 |
| 시스템 주파수 응답 | 4000~20000Hz |
| 스피커 크기 | 102 밀리미터 |
| 제품 치수 | 1인치 깊이 x 1인치 너비 x 1인치 높이 |
| 품목 무게 | 1.2 파운드 |
| 제조업체 | JBL/SELENIUM |
9. 보증 및 지원
This JBL product comes with a limited warranty. Please refer to the included Warranty Leaflet for detailed terms and conditions regarding coverage, duration, and claims procedures.
For technical support, service, or further inquiries, please visit the official JBL web사이트를 방문하거나 고객 서비스 부서에 문의하세요. 보증 청구를 위해 구매 증빙 자료로 구매 영수증을 보관하세요.





