1. Introducció
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.
Característiques principals:
- Audiophile Performance
- Dual mono configuration for enhanced channel separation
- Audiophile-grade ampmòduls de lificació
- 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. Instruccions de seguretat
Si us plau, llegiu atentament aquestes instruccions de seguretat abans de fer servir el dispositiu. Conserveu aquest manual per a futures consultes.
- Always disconnect the device from the power outlet before cleaning or if it will not be used for an extended period.
- No exposeu el dispositiu a la pluja o la humitat.
- Eviteu col·locar el dispositiu a prop de fonts de calor com ara radiadors, registres de calor, estufes o altres aparells que produeixen calor.
- No bloquegeu cap obertura de ventilació. Assegureu-vos que hi hagi un flux d'aire adequat al voltant de la unitat.
- Utilitzeu només accessoris/accessoris especificats pel fabricant.
- Demaneu tot el servei a personal de servei qualificat. El manteniment és necessari quan l'aparell s'ha fet malbé d'alguna manera, com ara el cable d'alimentació o l'endoll està danyat, s'ha vessat líquid o han caigut objectes a l'aparell, l'aparell ha estat exposat a la pluja o la humitat, no funciona amb normalitat. , o s'ha deixat caure.
3. Contingut del paquet
Si us plau, comproveu que el vostre paquet contingui els elements següents:
- Pro-Ject Phono Box S2 Unit
- Alimentació de 18V CC
- Manual d'instruccions
4. Producte acabatview
Panell frontal
The front panel of the Phono Box S2 features a minimalist design with a single control element.
Figura 1: Frontal 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.
- Botó d'encesa: S'utilitza per encendre o apagar la unitat.
- LED d'alimentació: S'il·lumina quan la unitat està engegada.
Panell posterior
The rear panel provides all necessary connections for your turntable and amplifier, along with the power input.
Figura 2: posterior 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 terrestre: 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).
- Entrada d'alimentació de 18 V CC: Connects to the supplied 18V DC power adapter.
5. Configuració
Follow these steps to properly set up your Pro-Ject Phono Box S2.
5.1. Connexions
- 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.
- Connect the ground wire from your turntable to the terminal de terra on the Phono Box S2. This helps reduce hum.
- Connecteu el '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: Example 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.
| Configuració | Descripció | Common Values / Purpose |
|---|---|---|
| Guançament (dB) | Ajusta el ampnivell de lificació. | 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. |
| Capacitat d'entrada (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. Funcionament
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.
- Enceneu el vostre 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 amplifier/receiver to your desired listening level.
- To turn off the unit, press the power button again. The power LED will extinguish.
Filtre subsònic
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. Manteniment
The Pro-Ject Phono Box S2 requires minimal maintenance.
- Neteja: 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.
- Col·locació: Place the unit on a stable, level surface away from direct sunlight, heat sources, and excessive dust. Ensure adequate ventilation.
- Emmagatzematge: Si guardeu la unitat durant un període prolongat, desconnecteu-la de la font d'alimentació i guardeu-la en un lloc fresc i sec.
8. Solució De Problemes
If you encounter issues with your Phono Box S2, refer to the following common problems and solutions.
| Problema | Causa possible | Solució |
|---|---|---|
| No hi ha so o la sortida de so és molt baixa. | 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. | Connectat a 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. |
| Soroll de brunzit o brunzit. | 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. Especificacions
Technical specifications for the Pro-Ject Phono Box S2.
| Característica | Detall |
|---|---|
| Número de model | 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) |
| Ràtio senyal / soroll | 85dB (MM), 72dB (MC) (typical) |
| THD+N | 0.0005% (MM), 0.0008% (MC) (typical) |
| RIAA Equalization Accuracy | +/- 0.4dB (20Hz-20kHz) (typical) |
| Vol. De sortidatage | 0.5V @ 1kHz (at 5mV input) (typical) |
| Font d'alimentació | 18V / 500mA DC |
| Dimensions del producte (L x A x A) | 4.65 x 4.06 x 1.42 polzades (11.8 x 10.3 x 3.6 cm) |
| Pes | 1.5 lliures (0.68 kg) |
| Fabricant | Sistemes d'àudio Pro-Ject |
| Data de primera disponibilitat | 8 de setembre de 2017 |
Note: Specifications are subject to change without notice. Typical values are provided where exact figures are not available.
10. Garantia i Suport
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 weblloc web. Conserveu el rebut de compra com a comprovant de compra per a reclamacions de garantia.
For further assistance, you may also contact your authorized Pro-Ject dealer.
