1. 서론
The Pro-Ject Phono Box RS is a high-performance phono preamplifier designed for both Moving Magnet (MM) and Moving Coil (MC) cartridges. It offers extensive adjustability for input impedance, capacitance, and gain, allowing for precise matching with a wide range of cartridges. This manual provides essential information for the proper setup, operation, and maintenance of your Phono Box RS.
2. 안전 지침
- Always connect the power adapter to the unit last, after all other audio connections have been made.
- 전원 공급 장치 볼륨을 확인하십시오.tage는 장치에 명시된 요구 사항과 일치합니다.
- 본 제품을 비나 습기에 노출시키지 마십시오.
- Avoid placing the unit near heat sources such as radiators, heat registers, stoves, or other heat-producing apparatus.
- 통풍구를 막지 마십시오.
- Disconnect the unit from the power outlet during lightning storms or when unused for long periods.
- 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. 패키지 내용
귀하의 패키지에 다음 품목이 포함되어 있는지 확인하세요.
- Pro-Ject Phono Box RS unit
- Power supply unit (18V DC)
- 사용자 설명서
4. 제품 오버view
4.1 전면 패널 컨트롤
The front panel of the Phono Box RS features controls for adjusting various parameters to optimize performance with your phono cartridge.
이미지: 앞면 view of the Pro-Ject Phono Box RS, highlighting the impedance selector and control switches.
- 전원 버튼: 기기를 켜고 끕니다.
- 임피던스 선택기: A rotary knob allowing adjustment of input impedance from 10 Ohm to 1,200 Ohm for MC cartridges.
- 음소거 스위치: 오디오 출력을 음소거합니다.
- 게인 스위치: Adjusts the input gain (e.g., 40 dB, 50 dB, 60 dB) for both RCA and XLR outputs.
- Equalization Switches: Selects between RIAA and DECCA equalization curves.
- Subsonic Filter Switch: Activates or deactivates the 20 Hz, 12 dB/octave subsonic filter.
4.2 후면 패널 연결
The rear panel provides all necessary audio input and output connections, along with the power input.
Image: Rear panel connections, including RCA and XLR inputs/outputs.
- 오디오 입력 : One stereo RCA input and one stereo XLR input for connecting your turntable.
- 오디오 출력 : Stereo RCA and stereo XLR outputs for connecting to your amp수신자 또는 수신자.
- 접지 터미널: For connecting the ground wire from your turntable to minimize hum.
- 18V DC 전원 입력: Connects to the supplied external power supply.
5. 설정
Follow these steps to set up your Pro-Ject Phono Box RS:
- 놓기: Place the Phono Box RS on a stable, level surface away from strong electromagnetic fields and heat sources.
- 턴테이블 연결:
- Connect the RCA or XLR output cables from your turntable to the corresponding input on the Phono Box RS.
- Connect the ground wire from your turntable to the ground terminal on the Phono Box RS.
- Amplifier 연결: Connect the RCA or XLR output from the Phono Box RS to a line-level input (e.g., 'Aux', 'CD', 'Line In') on your amplifier or receiver. Do NOT connect it to another phono input.
- 전원 연결: Connect the supplied 18V DC power supply to the '18V DC' input on the rear of the Phono Box RS, then plug the power supply into a wall outlet.
- 초기 설정: Before playing music, ensure the Mute switch is engaged.
6. 사용 설명서
The Phono Box RS offers extensive customization to match your cartridge and listening preferences.
6.1 Cartridge Type Selection (MM/MC)
The Phono Box RS automatically detects the cartridge type based on the impedance and gain settings. For MM cartridges, typically use higher capacitance and lower gain. For MC cartridges, adjust impedance and gain as needed.
6.2 Adjusting Input Impedance (MC Cartridges)
For Moving Coil (MC) cartridges, use the front panel rotary knob to adjust the input impedance. Start with the manufacturer's recommended impedance for your cartridge. Common settings range from 10 Ohm to 1,200 Ohm. Experiment to find the best sound for your system.
6.3 Adjusting Input Capacitance (MM Cartridges)
For Moving Magnet (MM) cartridges, the input capacitance can be adjusted. The unit offers options such as 100pF, 200pF, 300pF, 420pF, 520pF/47k ohm. Refer to your MM cartridge's specifications for the recommended capacitance. The 47k ohm setting is standard for MM cartridges.
6.4 게인 설정
Use the gain switches to match the output level of your cartridge to your amplifier's input sensitivity. Options typically include 40 dB, 50 dB, and 60 dB. Higher gain is generally used for lower output MC cartridges.
6.5 Equalization Curve
The Phono Box RS supports both RIAA and DECCA equalization curves. RIAA is the standard for most modern records. Select DECCA only if you are playing older records specifically mastered with the DECCA curve.
6.6 아음속 필터
Activate the subsonic filter (20 Hz, 12 dB/octave) if you experience excessive low-frequency rumble or woofer pumping, which can be caused by warped records or turntable vibrations. This filter helps to remove inaudible low-frequency noise without affecting the musical content.
7. 유지관리
To ensure the longevity and optimal performance of your Phono Box RS, follow these maintenance guidelines:
- 청소: Use a soft, dry cloth to clean the exterior of the unit. Do not use liquid cleaners or solvents, as they may damage the finish.
- 통풍: 과열을 방지하기 위해 통풍구가 막히지 않도록 하십시오.
- 저장: 장기간 보관할 경우, 전원을 분리하고 서늘하고 건조한 곳에 보관하세요.
8. 문제 해결
If you encounter issues with your Phono Box RS, consult the following table before contacting support.
| 문제 | 가능한 원인 | 해결책 |
|---|---|---|
| 소리가 나지 않습니다 | Unit not powered on; Mute engaged; Incorrect connections; Amp앰프 입력이 선택되지 않았습니다. | Check power connection and switch; Disengage Mute; Verify all audio cables are correctly connected; Select correct input on amp리퍼. |
| 윙윙거리는 소리 | Ground wire not connected; Ground loop; Nearby electrical interference; Faulty cables. | Ensure turntable ground wire is connected to Phono Box RS; Try different power outlets; Move unit away from other electronics; Replace audio cables. |
| 왜곡된 소리 | Incorrect gain setting; Incorrect impedance/capacitance; Damaged cartridge/stylus. | Adjust gain to appropriate level for your cartridge; Verify impedance/capacitance settings match your cartridge; Inspect cartridge and stylus for damage. |
| Sound too quiet or too loud | 게인 설정이 잘못되었습니다. | Adjust the gain switches on the front panel to match your cartridge output and amplifier input sensitivity. |
9. 사양
Technical specifications for the Pro-Ject Phono Box RS:
- 오디오 입력 : 1 Stereo RCA, 1 Stereo XLR
- 조정 가능한 입력 임피던스: 10옴 ~ 1,200옴
- Input Capacitance Options: 100pF, 200pF, 300pF, 420pF, 520pF/47k ohm
- Fixed Input Impedance: 10 Ohm (for specific configurations)
- Input Gain (with XLR): 40 dB, 50dB (B), 60dB (A)
- 아음속 필터: 20Hz, 12dB/옥타브
- 전원 공급 장치: Dual 18 V/250 mA DC
- 전력 사용량: 150 mA DC, Less than 1W in Standby
- 크기(WHD): 8.1인치 x 2.9인치 x 7.9인치(206 x 72 x 200mm)
- 제품 무게: 4.4파운드(2kg)
내부 구성 요소
이미지: 내부 view of the Phono Box RS circuit board.
10. 보증 및 지원
Pro-Ject products are manufactured to the highest standards and undergo strict quality control. In the unlikely event of a defect, please refer to the warranty terms provided with your purchase documentation. For technical support or service inquiries, please contact your authorized Pro-Ject dealer or distributor. Keep your proof of purchase for warranty claims.