1. Ifihan
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. Awọn ilana aabo
- Always connect the power adapter to the unit last, after all other audio connections have been made.
- Rii daju pe ipese agbara voltage ibaamu awọn ibeere pato lori kuro.
- Ma ṣe fi ẹrọ naa han si ojo tabi ọrinrin.
- Avoid placing the unit near heat sources such as radiators, heat registers, stoves, or other heat-producing apparatus.
- Ma ṣe dina eyikeyi awọn ṣiṣi atẹgun.
- Disconnect the unit from the power outlet during lightning storms or when unused for long periods.
- Tọkasi gbogbo iṣẹ si awọn oṣiṣẹ iṣẹ ti o peye. Iṣẹ nilo nigbati ohun elo ba ti bajẹ ni ọna eyikeyi, gẹgẹbi okun ipese agbara tabi plug ti bajẹ, omi ti ta silẹ tabi awọn nkan ti ṣubu sinu ẹrọ, ohun elo naa ti farahan si ojo tabi ọrinrin, ko ṣiṣẹ deede. , tabi ti lọ silẹ.
3. Package Awọn akoonu
Jọwọ ṣayẹwo pe apo rẹ ni awọn nkan wọnyi:
- Pro-Ject Phono Box RS unit
- Power supply unit (18V DC)
- Itọsọna olumulo
4. Ọja Ipariview
4.1 Iwaju Panel idari
The front panel of the Phono Box RS features controls for adjusting various parameters to optimize performance with your phono cartridge.
Aworan: Iwaju view of the Pro-Ject Phono Box RS, highlighting the impedance selector and control switches.
- Bọtini agbara: Toggles the unit on and off.
- Yiyan ikọlu: A rotary knob allowing adjustment of input impedance from 10 Ohm to 1,200 Ohm for MC cartridges.
- Yipada Mute: Dẹkun ohun afetigbọ ohun.
- Gain Switches: 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 Ru Panel Awọn isopọ
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.
- Awọn igbewọle Audio: One stereo RCA input and one stereo XLR input for connecting your turntable.
- Awọn abajade Audio: Stereo RCA and stereo XLR outputs for connecting to your amplifier tabi olugba.
- Ilẹ -ilẹ Ilẹ: For connecting the ground wire from your turntable to minimize hum.
- Iṣawọle agbara 18V DC: Connects to the supplied external power supply.
5. Eto
Follow these steps to set up your Pro-Ject Phono Box RS:
- Ibi: Place the Phono Box RS on a stable, level surface away from strong electromagnetic fields and heat sources.
- Asopọ ti o yipada:
- 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.
- AmpAsopọ liifier: 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.
- Asopọ agbara: 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.
- Awọn Eto Ibẹrẹ: Before playing music, ensure the Mute switch is engaged.
6. Awọn ilana Iṣiṣẹ
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 Ètò Èrè
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 Subsonic Ajọ
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. Itọju
To ensure the longevity and optimal performance of your Phono Box RS, follow these maintenance guidelines:
- Ninu: 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.
- Afẹfẹ: Rii daju pe awọn šiši fentilesonu ko ni idiwọ lati ṣe idiwọ igbona.
- Ibi ipamọ: Tí o bá ń tọ́jú ẹ̀rọ náà fún ìgbà pípẹ́, yọ ọ́ kúrò nínú agbára iná mànàmáná kí o sì tọ́jú rẹ̀ sí ibi tí ó tutù tí ó sì gbẹ.
8. Laasigbotitusita
If you encounter issues with your Phono Box RS, consult the following table before contacting support.
| Isoro | Owun to le Fa | Ojutu |
|---|---|---|
| Ko si ohun | Unit not powered on; Mute engaged; Incorrect connections; Amplifier igbewọle ko yan. | Check power connection and switch; Disengage Mute; Verify all audio cables are correctly connected; Select correct input on amplifier. |
| Ariwo ariwo tabi ariwo | 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. |
| Ohun ti o daru | 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 | Eto ere ti ko tọ. | Adjust the gain switches on the front panel to match your cartridge output and amplifier input sensitivity. |
9. Awọn pato
Technical specifications for the Pro-Ject Phono Box RS:
- Awọn igbewọle Audio: 1 Stereo RCA, 1 Stereo XLR
- Adjustable Input Impedance: 10 Ohm si 1,200 Ohm
- 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)
- Ajọ Subsonic: 20 Hz, 12 dB / octave
- Ibi ti ina elekitiriki ti nwa: Dual 18 V/250 mA DC
- Lilo agbara: 150 mA DC, Less than 1W in Standby
- Awọn iwọn (WHD): 8.1" x 2.9" x 7.9" (206 x 72 x 200 mm)
- Iwọn Ọja: 4.4 lb (2 kg)
Awọn ohun elo inu
Aworan: Ti abẹnu view of the Phono Box RS circuit board.
10. Atilẹyin ọja ati Support
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.
