Nobsound 6P1 Vakuumrør Power AmpLifier DJ428 Brugermanual

1. Introduktion

This manual provides detailed instructions for the Nobsound 6P1 Vacuum Tube Power Amplifier, Model DJ428. This stereo Class A single-ended amplifier is designed to deliver high-fidelity audio output for both speakers and headphones. Please read this manual thoroughly before operating the device to ensure proper use and optimal performance.

2. Vigtige sikkerhedsinstruktioner

• Varme: Vakuumrør amplifiers generate significant heat during operation. Ensure adequate ventilation around the unit. Do not place the amplifier on heat-sensitive surfaces or cover its ventilation openings.
• Strømkilde: Tilslut amplifier only to a power supply of the type indicated on the unit. Ensure the power cord is not pinched or walked on.
• Fugtighed: To reduce the risk of fire or electric shock, do not expose this appliance to rain or moisture. Do not use near water.
• Service: Forsøg ikke selv at udføre service på dette produkt. Overlad al service til kvalificeret servicepersonale. Åbning af enheden kan udsætte dig for farlige stoffer.tages.
• Rørhåndtering: Tubes can be hot. Allow the amplifier to cool down before handling or replacing tubes. Handle tubes carefully to avoid breakage.
• Placering: Place the unit on a stable, level surface. Keep cell phones and other electronic devices at least 3 feet away to minimize potential interference or hum.

3. Pakkens indhold

Bekræft at alle varer er til stede i pakken:

• Nobsound 6P1 Vakuumrør Power Amplifier (Model DJ428)
• Vacuum Tubes (individually wrapped)
• Strømkabel
• Brugervejledning (dette dokument)

4. Opsætningsvejledning

Follow these steps to set up your Nobsound 6P1 amplivligere:

4.1. Tube Installation

The vacuum tubes are shipped separately to prevent damage. Carefully unpack each tube and install them into their corresponding sockets. Ensure the pins align correctly with the socket holes and gently push down until the tube is seated firmly. Refer to the diagram below for tube placement.

Billede 1: Top-down view af amplifier chassis, illustrating the placement of the vacuum tubes into their respective sockets. Ensure correct pin alignment during installation.

4.2. Tilslutning af lydkilder

Tilslut din lydkilde (f.eks. cd-afspiller, DAC, forforstærker)amplifier) to the RCA input jacks on the rear of the amplifier ved hjælp af højkvalitets RCA-kabler.

Billede 2: Rear panel of the Nobsound 6P1 amplifier, displaying the RCA input connectors on the left and the speaker output terminals on the right.

4.3. Tilslutning af højttalere

Tilslut dine passive højttalere til højttalerudgangsterminalerne på bagsiden af amplifier. Ensure correct polarity (+ to + and - to -) for each channel. This amplifier is designed for speakers with appropriate impedance and power handling capabilities.

4.4. Tilslutning af hovedtelefoner

For headphone use, plug your headphones into the 6.35mm (1/4 inch) headphone jack located on the front panel. The amplifier supports headphones with an impedance between 32Ω and 600Ω.

4.5. Strømtilslutning

Connect the provided power cable to the power inlet on the rear of the amplifier, then plug it into a suitable wall outlet. Ensure the power switch on the front panel is in the 'OFF' position before connecting to power.

5. Betjeningsvejledning

5.1. Tænd/sluk

1. Sørg for, at alle forbindelser er sikre.
2. Turn the volume knob to its minimum position (fully counter-clockwise).
3. Flip the 'POWER' switch on the front panel to the 'ON' position. The blue LED indicator will illuminate, and the tubes will begin to glow. Allow a few moments for the tubes to warm up before playing audio.
4. To power off, turn the volume knob to minimum, then flip the 'POWER' switch to 'OFF'.

Billede 3: Front view of the Nobsound 6P1 amplifier, highlighting the power switch, headphone jack, VU meters, and volume control knob.

5.2. Lydstyrkekontrol

Adjust the 'VOLUME' knob on the front panel to achieve your desired listening level. Start at a low volume and gradually increase it to prevent sudden loud sounds.

5.3. Initial Burn-in Period

New vacuum tubes and amplifier components benefit from a 'burn-in' period. During the first 50-100 hours of use, the sound quality may gradually improve and stabilize. You may notice slight variations in sound during this period.

6. Vedligeholdelse

6.1. Rensning

Tør af amplifier's exterior with a soft, dry cloth. Do not use liquid cleaners or abrasive materials, as they may damage the finish or internal components.

6.2. Udskiftning af rør

Vacuum tubes have a finite lifespan and may need replacement over time. If you experience a decrease in sound quality, increased noise, or tube failure, consider replacing the tubes. Ensure the amplifier is powered off and cooled down before attempting to replace tubes. Refer to the tube installation section for proper handling.

6.3. Almen pleje

Undgå at udsætte amplifier to extreme temperatures, direct sunlight, or high humidity. Do not block the ventilation holes. Disconnect the power cable if the unit will be unused for an extended period.

7. Fejlfinding

If you encounter issues with your Nobsound 6P1 ampLifier, se følgende almindelige problemer og løsninger:

• Ingen lyd:
  • Tjek om amplifier is powered on and the blue LED is illuminated.
  • Verify all audio cables (RCA, speaker, headphone) are securely connected.
  • Ensure the volume knob is not at its minimum setting.
  • Confirm your audio source is functioning correctly.
• Summende eller summende støj:
  • Sørg for, at alle kabler er korrekt afskærmet og tilsluttet.
  • Prøv at flytte amplifier away from other electronic devices (e.g., Wi-Fi routers, cell phones, computer monitors) that may cause interference.
  • A ground loop may be present. Try plugging the amplifier into a different electrical outlet, ideally on a separate circuit from other audio equipment.
  • Inspect tubes for proper seating; reseat them if necessary.
• Forvrænget lyd:
  • Reduce the volume level from both the amplifteren og lydkilden.
  • Check speaker connections for correct polarity.
  • Ensure the impedance of your speakers/headphones is compatible with the amplivligere.
  • Tubes may be nearing the end of their lifespan and require replacement.
• Intermitterende lyd eller knitren:
  • Gently reseat all vacuum tubes. Loose connections can cause intermittent audio.
  • Kontroller for beskadigede lydkabler.

Hvis problemet fortsætter efter at have forsøgt disse løsninger, bedes du kontakte kundesupport.

8. Specifikationer

9. Garanti og support

For warranty information and technical support, please refer to the documentation provided with your purchase or visit the official Nobsound webwebsted. Behold din købskvittering som købsbevis i tilfælde af garantikrav.