1. Introduzione
The Pro-Ject Phono Box S2 is a high-quality phono preamplifier designed to enhance the audio signal from your turntable before it reaches your amplifier or receiver. It features audiophile-grade components and a dual mono configuration for superior sound reproduction. This manual provides detailed instructions for setting up, operating, and maintaining your Phono Box S2.
Funzioni chjave:
- Audiophile Performance
- Dual mono configuration for enhanced channel separation
- Audiophile-grade ampmoduli di lificazione
- Audiophile-grade polypropylene WIMA capacitors
- Precise RIAA equalization
- Adjustable input impedance and capacitance via DIP switches
- Selectable gain settings for Moving Magnet (MM) and Moving Coil (MC) cartridges
2. Istruzzioni di sicurità
Leghjite attentamente queste istruzioni di sicurezza prima di fà funziunà l'apparecchiu. Cunservate stu manuale per riferimenti futuri.
- Always disconnect the device from the power outlet before cleaning or if it will not be used for an extended period.
- Ùn espone micca u dispusitivu à a pioggia o l'umidità.
- Evitate di mette u dispusitivu vicinu à fonti di calore, cum'è radiatori, registri di calore, stufe, o altri apparecchi chì producenu calore.
- Ùn bluccate micca alcuna apertura di ventilazione. Assicuratevi un flussu d'aria adattatu intornu à l'unità.
- Aduprate solu accessori / accessori specificati da u fabricatore.
- Riferite tutte l'assistenza à u persunale di serviziu qualificatu. U serviziu hè necessariu quandu l'apparechju hè statu danatu in ogni modu, cum'è u cordone di l'alimentazione o u plug hè dannatu, u liquidu hè statu versatu o l'uggetti sò caduti in l'apparechju, l'apparechju hè statu espostu à a pioggia o l'umidità, ùn funziona micca nurmale. , o hè stata abbandunata.
3. Cuntenutu di u pacchettu
Verificate chì u vostru pacchettu cuntene i seguenti articuli:
- Pro-Ject Phono Box S2 Unit
- Alimentazione di 18V DC
- Manuale d'istruzzioni
4. Produttu Finituview
Panel frontale
The front panel of the Phono Box S2 features a minimalist design with a single control element.
Figura 1: Fronte view of the Pro-Ject Phono Box S2 in black. The front panel features a circular power button on the left side, with a small LED indicator above it. The 'P Phono Box S2' logo is printed below the button.
- Pulsante di putenza: Adupratu per accende o spegne l'unità.
- LED di putenza: S'illumina quandu l'unità hè accesa.
Panel posteriore
The rear panel provides all necessary connections for your turntable and amplifier, along with the power input.
Figura 2: Posteriore view of the Pro-Ject Phono Box S2. From left to right, it shows a ground screw terminal, 'In' RCA jacks (Left and Right), a 'Subsonic' button, 'Out' RCA jacks (Left and Right), and the 18V power input jack.
- Terminal di Terra: Connects to the ground wire from your turntable to minimize hum.
- In (RCA): Audio input from your turntable (Left and Right channels).
- Subsonic Button: Activates or deactivates the subsonic filter, which removes very low-frequency rumble.
- Out (RCA): Audio output to your amplifier or receiver (Left and Right channels).
- Ingressu di alimentazione 18V DC: Connects to the supplied 18V DC power adapter.
5. Setup
Follow these steps to properly set up your Pro-Ject Phono Box S2.
5.1. Cunnessioni
- Ensure all audio components are turned off before making connections.
- Connect the RCA output cables from your turntable to the 'In' RCA jacks on the rear of the Phono Box S2. Ensure left and right channels are correctly matched.
- Cunnette u filu di terra da u vostru giradischi à u terminal di terra on the Phono Box S2. This helps reduce hum.
- Cunnette u 'Out' RCA jacks of the Phono Box S2 to a line-level input on your amplifier or receiver (e.g., CD, Aux, Line In). Do not connect to a phono input on your amplifier, as this will result in distorted sound.
- Connect the supplied 18V DC power supply to the '18V DC' input on the rear of the Phono Box S2, then plug the power supply into a wall outlet.
Figura 3: Esample setup with a turntable connected to a Pro-Ject Phono Box S2. The image illustrates the compact size of the phono preamplifier next to a turntable.
5.2. DIP Switch Settings (Bottom Panel)
The Phono Box S2 features DIP switches on its underside, allowing you to adjust gain, input impedance, and input capacitance to match your specific phono cartridge. There are two sets of switches, one for the left channel and one for the right. Ensure both sets are configured identically.
Refer to your cartridge's specifications for recommended settings. If you are unsure, consult your cartridge manufacturer's documentation or an audio specialist.
| Paràmetru | Descrizzione | Common Values / Purpose |
|---|---|---|
| Guadagno (dB) | Ajuste u amplivellu di lificazione. | 40 dB: Standard for Moving Magnet (MM) cartridges. 43 dB: Slightly higher gain for MM, or some high-output MC. 60 dB: Standard for Moving Coil (MC) cartridges. 63 dB: Slightly higher gain for MC. |
| Input Impedance (Ohms) | Sets the electrical load presented to the cartridge. | 47k Ohms: Standard for MM cartridges. 10/100/1k/2k Ohms: For MC cartridges, match to cartridge recommendation. |
| Capacità di input (pF) | Sets the electrical capacitance presented to the cartridge. | 100pF/200pF/320pF/420pF: Primarily for MM cartridges. Match to cartridge recommendation, often combined with tonearm cable capacitance. |
Nota: Always power off the Phono Box S2 and disconnect the power supply before changing DIP switch settings to avoid potential damage or unexpected behavior.
6. Operazione
Once all connections are made and DIP switches are set, operating the Phono Box S2 is straightforward.
- Press the power button on the front panel to turn on the Phono Box S2. The power LED will illuminate.
- Accende u vostru amplifier/receiver and select the input to which the Phono Box S2 is connected.
- Start playing a record on your turntable. Adjust the volume on your ampl'altatore/ricevitore à u livellu d'ascolta desideratu.
- To turn off the unit, press the power button again. The power LED will extinguish.
Filtru Subsonicu
The subsonic filter button on the rear panel can be used to remove very low-frequency rumble that can be generated by warped records or turntable motor vibrations. This can improve sound clarity and prevent unnecessary strain on your amplifier and speakers. Press the button to toggle the filter on or off.
7. Mantenimentu
The Pro-Ject Phono Box S2 requires minimal maintenance.
- Pulizia: 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.
- Placement: Place the unit on a stable, level surface away from direct sunlight, heat sources, and excessive dust. Ensure adequate ventilation.
- Conservazione: Sè vo almacenate l'unità per un periodu prolongatu, scollegatela da a rete elettrica è almacenatela in un locu frescu è asciuttu.
8. Risoluzione di prublemi
If you encounter issues with your Phono Box S2, refer to the following common problems and solutions.
| Prublemu | Causa Possibile | Soluzione |
|---|---|---|
| Nisun sonu o un sonu assai bassu. | Incorrect connections; Phono Box S2 not powered on; Amplifier input not selected; Incorrect gain setting. | Check all RCA and power connections. Ensure Phono Box S2 is powered on. Select the correct line-level input on your amplifier. Verify DIP switch gain settings match your cartridge. |
| Distorted or harsh sound. | Cunnessu à amplifier's phono input; Incorrect gain setting (too high); Incorrect impedance/capacitance. | Connect Phono Box S2 to a line-level input (CD, Aux) on your amplifier. Adjust DIP switch gain to a lower setting. Verify impedance and capacitance settings match your cartridge. |
| Rumore di ronziu o di ronziu. | Ground wire not connected; Ground loop; Nearby electrical interference. | Ensure turntable ground wire is securely connected to the Phono Box S2 ground terminal. Try connecting the Phono Box S2 and amplifier to the same power strip. Move the unit away from other electronic devices. |
| Sound is dull or lacking detail. | Incorrect impedance or capacitance setting. | Adjust DIP switch impedance and capacitance settings to better match your cartridge's specifications. |
If the problem persists after trying these solutions, please contact Pro-Ject customer support or your authorized dealer.
9. Specificazioni
Technical specifications for the Pro-Ject Phono Box S2.
| Feature | Detail |
|---|---|
| Numero di mudellu | PHBOXS2BLK |
| Input Impedance (MM) | 47 k ohms |
| Input Impedance (MC) | 10 / 100 / 1k / 2k Ohms (selectable) |
| Input Capacitance (MM) | 100 / 200 / 320 / 420 pF (selectable) |
| Gain (MM) | 40dB / 43dB (selectable) |
| Gain (MC) | 60dB / 63dB (selectable) |
| Rapportu Signal-to-Noise | 85dB (MM), 72dB (MC) (typical) |
| THD + N | 0.0005% (MM), 0.0008% (MC) (typical) |
| RIAA Equalization Accuracy | +/- 0.4dB (20Hz-20kHz) (typical) |
| Uscita Voltage | 0.5V @ 1kHz (at 5mV input) (typical) |
| Alimentazione elettrica | 18V / 500mA DC |
| Dimensioni di u produttu (L x W x H) | 4.65 x 4.06 x 1.42 inch (11.8 x 10.3 x 3.6 cm) |
| Pesu | 1.5 Libbra (0.68 kg) |
| U fabricatore | Sistemi Audio Pro-Ject |
| Data Prima Disponibile | 8 settembre 2017 |
Note: Specifications are subject to change without notice. Typical values are provided where exact figures are not available.
10. Garanzia è Support
Pro-Ject Audio Systems products are manufactured to the highest standards and undergo strict quality control. For warranty information and technical support, please refer to the warranty card included with your product or visit the official Pro-Ject Audio Systems websitu. Conservate a vostra ricevuta d'acquistu cum'è prova d'acquistu per e richieste di garanzia.
For further assistance, you may also contact your authorized Pro-Ject dealer.
