Indledning
Thank you for choosing the Pro-Ject Phono Box DS3 B. This balanced phono preampLifier er designet til at levere høj kvalitet amplification for both Moving Magnet (MM) and Moving Coil (MC) cartridges, offering flexible adjustments for optimal sound reproduction. Please read this manual carefully to ensure proper setup and operation.
Sikkerhedsinstruktioner
- Always disconnect the power adapter from the mains before handling the device or connecting/disconnecting cables.
- Sørg for, at strømforsyningen voltage matcher kravene specificeret på enheden.
- Avoid exposing the device to moisture, rain, or excessive heat.
- Åbn ikke enheden casing. Overlad al service til kvalificeret personale.
- Hold enheden væk fra kilder til stærk elektromagnetisk interferens.
Pakkens indhold
Bekræft, at din pakke indeholder følgende varer:
- Pro-Ject Phono Box DS3 B unit
- 18V DC strømadapter
- Brugermanual
Produkt overview
Kontrol på frontpanelet
Figure 1: Front panel of the Pro-Ject Phono Box DS3 B.
- Loading Ohms (Variable Potentiometer): Adjusts the input impedance for Moving Coil (MC) cartridges continuously from 10 to 1000 Ohms.
- Inputvælger: Toggles between RCA and XLR input connections.
- Subsonisk filter: Activates a filter to remove very low-frequency rumble, improving sound clarity.
- Loading pF: Selects input capacitance for Moving Magnet (MM) cartridges (50, 150, 300, 400 pF).
- Få dB: Adjusts the gain level (40, 45, 50, 55, 60, 65 dB) to match your cartridge output and ampLifierens indgangsfølsomhed.
Bagpaneltilslutninger
Figure 2: Rear panel connections of the Pro-Ject Phono Box DS3 B.
- Inputs (RCA & 5-pin mini XLR): Connect your turntable's output cables here. The 5-pin mini XLR allows for a true balanced connection from compatible turntables.
- Outputs (RCA & XLR): Forbind disse til din amplifier or receiver's line-level inputs. XLR outputs provide a balanced signal.
- Jordterminal: Connect your turntable's ground wire here to minimize hum.
- Trigger Input/Output (12V): For remote power control with other compatible Pro-Ject components.
- 18V DC strømindgang: Tilslut den medfølgende strømadapter her.
Opsætning
Placering
Place the Phono Box DS3 B on a stable, level surface, away from heat sources and other electronic devices that may cause interference. Ensure adequate ventilation around the unit.
Tilslutning af din pladespiller
- RCA-forbindelse: Connect the RCA cables from your turntable to the RCA inputs on the Phono Box DS3 B.
- Balanced Connection (5-pin mini XLR): If your turntable supports balanced output, connect a compatible 5-pin mini XLR cable from your turntable to the balanced input on the Phono Box DS3 B.
- Jording: Connect the ground wire from your turntable to the ground terminal on the Phono Box DS3 B. This is crucial for minimizing hum and noise.
Forbinder til din Amplivligere
- RCA-udgang: Connect RCA cables from the Phono Box DS3 B's RCA outputs to a line-level input (e.g., 'Aux', 'Line In', 'CD') on your amplifier eller modtager. Do not connect to a 'Phono' input on your amplivligere, as this would result in double pre-amplifikation.
- XLR-udgang: For a balanced connection, connect XLR cables from the Phono Box DS3 B's XLR outputs to balanced XLR inputs on your amplifier eller modtager.
Strømtilslutning
Connect the supplied 18V DC power adapter to the 'Power 18V' input on the rear panel of the Phono Box DS3 B. Then, plug the power adapter into a suitable mains outlet. Brug kun den strømadapter, der følger med enheden.
Figur 3: Eksample setup showing the Phono Box DS3 B connected to a turntable.
Drift
Once all connections are made, you can power on the Phono Box DS3 B. The unit does not have a dedicated power switch; it powers on when connected to the mains. Adjust the settings on the front panel according to your cartridge type and listening preferences.
Valg af input
Use the 'Input' button to select between the RCA or XLR input, depending on how your turntable is connected.
Adjusting Load Impedance (MC Cartridges)
For Moving Coil (MC) cartridges, use the 'Loading Ohms' potentiometer to continuously adjust the input impedance. Experiment with different settings while listening to find the optimal sound for your specific MC cartridge. This adjustment can significantly impact the tonal balance and dynamics.
Adjusting Capacitance (MM Cartridges)
For Moving Magnet (MM) cartridges, use the 'Loading pF' buttons to select the appropriate input capacitance (50, 150, 300, or 400 pF). Refer to your cartridge manufacturer's recommendations for the ideal capacitance setting.
Justering af forstærkning
Use the 'Gain dB' buttons to select the appropriate gain level (40, 45, 50, 55, 60, or 65 dB). This should be set to match the output voltage of your cartridge and the input sensitivity of your amplifier. Higher gain settings are typically used for low-output MC cartridges.
Brug af Subsonic-filteret
Press the 'Subsonic' button to activate the subsonic filter. This filter helps to remove very low-frequency noise and rumble (e.g., from warped records or turntable motor vibrations) that can cause woofer pumping and muddy bass without affecting the audible frequency range.
Opretholdelse
The Pro-Ject Phono Box DS3 B requires minimal maintenance.
- Rensning: 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.
- Opbevaring: Hvis enheden skal opbevares i længere tid, skal den afbrydes fra strømforsyningen og opbevares et køligt og tørt sted.
Fejlfinding
Hvis du støder på problemer, kan du se følgende fejlfindingsvejledning:
| Problem | Mulig årsag | Løsning |
|---|---|---|
| Ingen lyd | Incorrect connections, wrong input selected, ampLifier-indgang ikke valgt. | Check all cable connections. Ensure the correct input (RCA/XLR) is selected on the Phono Box DS3 B and the correct input is selected on your amplivligere. |
| Brummende eller summende lyd | Grounding issue, proximity to other electronics, faulty cables. | Ensure the turntable's ground wire is securely connected to the Phono Box DS3 B. Move the unit away from other electronic devices. Try different cables. |
| Forvrænget lyd | Incorrect gain setting, incorrect loading (impedance/capacitance). | Adjust the 'Gain dB' setting. Verify 'Loading Ohms' (MC) or 'Loading pF' (MM) settings match your cartridge specifications. |
| Weak or low volume | Insufficient gain setting. | Increase the 'Gain dB' setting. |
Specifikationer
- Model: Pro-Ject Phono Box DS3 B (PJ829351)
- Input Impedance (MC): 10 - 1000 Ohms (continuously variable)
- Input Capacitance (MM): 50, 150, 300, 400 pF
- Gevinst: 40, 45, 50, 55, 60, 65 dB
- Indgange: RCA, 5-pin mini XLR (balanced)
- Udgange: RCA, XLR (balanced)
- Subsonisk filter: Ja
- Dimensioner (L x B x H): 8.11 x 8.07 x 2.83 tommer (20.6 x 20.5 x 7.2 cm)
- Vægt: 1480 gram (3.26 pund)
- Materiale: Alloy Steel chassis
- Strømforsyning: 18V DC (external power adapter)
- Nøglefunktioner: Fully discrete audio circuitry, fully symmetrical gain stage, split passive RIAA EQ, dual mono design, true balanced connection capability.
Figur 4: Intern view of the Phono Box DS3 B, highlighting its discrete audio circuitry.
Garanti og support
This Pro-Ject Phono Box DS3 B comes with a 2 års producentgaranti fra købsdatoen. Gem venligst din købsbevis i tilfælde af garantikrav.
For technical support, service, or further information, please visit the official Pro-Ject Audio Systems webwebstedet eller kontakt din autoriserede forhandler.
Du kan også finde mere information og support på Pro-Ject Audio Systems Store on Amazon.