FiiO K7 DAC d'escriptori i auriculars AmpManual d'usuari més viu

1. Introducció

El FiiO K7 és un convertidor digital-analògic (DAC) d'escriptori d'alt rendiment i un sistema d'auriculars. Amplifier designed to deliver an exceptional audio experience. It integrates advanced audio circuitry, including dual AK4493SEQ DACs and dual THX AAA 788+ amplifiers, to provide clear, powerful, and detailed sound. The K7 supports multiple input and output options, making it a versatile hub for various audio setups.

Image 1.1: FiiO K7 Desktop DAC and Headphone Ampunitat més viva.

2. Instruccions de seguretat

Please read and follow these safety instructions carefully to ensure safe and optimal operation of your FiiO K7:

• Font d'alimentació: Use only the provided power adapter. Using an unauthorized adapter may damage the device or pose a safety risk.
• Aigua i humitat: Do not expose the device to water, rain, or moisture. Avoid placing liquid-filled objects on or near the device.
• Ventilació: Ensure adequate ventilation around the device. Do not block ventilation openings. Avoid placing the device in enclosed spaces that may restrict airflow.
• Calor: Mantingueu el dispositiu allunyat de fonts de calor com ara radiadors, registres de calor, estufes o altres aparells que produeixin calor.
• Neteja: Clean the device only with a dry, soft cloth. Do not use liquid cleaners or aerosol sprays.
• Manteniment: No intenteu atendre aquest producte vosaltres mateixos. Consulteu tots els serveis a personal de servei qualificat.
• Protecció auditiva: Eviteu escoltar a nivells de volum elevats durant períodes prolongats per evitar danys auditius.

3. Contingut del paquet

Verify that all items are present in your FiiO K7 package:

• FiiO K7 DAC d'escriptori i auriculars AmpUnitat lificadora
• Adaptador d'alimentació
• Cable de dades USB
• Guia d'inici ràpid (pot variar segons la regió)
• Targeta de garantia (pot variar segons la regió)

4. Producte acabatview

Familiarize yourself with the controls and connections of your FiiO K7.

4.1 Tauler frontal

Imatge 4.1: acabatview of the FiiO K7 front and rear panels.

1. Botó d'entrada: Press to cycle through available input sources (USB, Optical, Coaxial, Line In).
2. Gain Switch (H/L): Selects high or low gain for headphone output. Use 'H' for high-impedance headphones and 'L' for sensitive headphones or IEMs.
3. Output Switch (LO/PRE/PO): Selects the output mode:
   • PO (sortida telefònica): Activates the front panel headphone outputs (6.35mm and 4.4mm Balanced).
   • PRE (Pre-Sortida): Activates the rear panel RCA Line-Out with volume control, suitable for active speakers or power ampaixecadors.
   • LO (Sortida de línia): Activates the rear panel RCA Line-Out with fixed maximum volume, suitable for integrated amplificadors o receptors.
4. Pom de volum: Adjusts the output volume. The RGB indicator light around the knob displays the current samptaxa de ling.
5. Sortida d'auriculars de 6.35 mm: Presa d'auriculars estàndard d'un sol extrem.
6. Sortida d'auriculars balancejada de 4.4 mm: Balanced headphone jack for improved audio performance.

4.2 Panell posterior

Imatge 4.2: Detallada view of the FiiO K7 rear panel connections.

Image 4.3: Diagram illustrating the variety of audio connectors on the FiiO K7.

7. Entrada de línia (RCA): Analog input for connecting external audio sources.
8. Pre/Line Out (RCA): Analog output for connecting to speakers or amplifiers. Functions as Pre-Out or Line-Out based on the front panel switch.
9. Entrada coaxial: Entrada coaxial digital.
10. Entrada òptica: Entrada òptica digital.
11. Entrada USB: USB Type-B input for connecting to a computer or mobile device.
12. Entrada d'alimentació DC 12V: Connecteu aquí l'adaptador de corrent de 12 V proporcionat.

5. Configuració

Follow these steps for initial setup of your FiiO K7:

1. Connectar l'alimentació: Plug the provided 12V power adapter into the DC 12V input on the rear panel of the K7, then plug the adapter into a wall outlet.
2. Connecta la font d'àudio:
   • USB: Connect the USB Type-B port on the K7 to your computer or compatible mobile device using the USB data cable.
   • Òptic/Coaxial: Connect your digital audio source (e.g., TV, CD player) to the Optical In or Coaxial In port using appropriate cables.
   • Línia d'entrada: Connect an analog audio source (e.g., turntable pre-amp, portable player) to the RCA Line In ports.
3. Connect Output Device:
   • Auriculars: Plug your headphones into either the 6.35mm or 4.4mm Balanced jack on the front panel.
   • Altaveus/Ampmés viu: Connect the RCA Pre/Line Out ports on the rear panel to your active speakers or power ampmés viu.
4. Encès: Turn the volume knob clockwise to power on the device. The RGB indicator light around the volume knob will illuminate.

6. Instruccions de funcionament

Learn how to use the various functions of your FiiO K7 for an optimized listening experience.

6.1 Selecció d'entrada

Premeu el botó Entrada button on the front panel to cycle through the available input sources: USB, Optical, Coaxial, and Line In. The corresponding indicator light above the input button will show the currently selected source.

6.2 Gain Level Adjustment

Utilitza el Guanyar switch (H/L) to adjust the amplification level. Select 'H' (High) for headphones that require more power, such as high-impedance models. Select 'L' (Low) for sensitive headphones or in-ear monitors (IEMs) to prevent excessive volume and potential distortion.

Image 6.1: Front panel controls for gain and output selection.

6.3 Selecció del mode de sortida

Utilitza el Sortida switch (LO/PRE/PO) to select the desired output mode:

• PO (sortida telefònica): For listening through headphones connected to the front panel jacks.
• PRE (Pre-Sortida): For connecting to active speakers or a power amplifier, where the volume is controlled by the K7's volume knob.
• LO (Sortida de línia): For connecting to an integrated amplifier or receiver, providing a fixed maximum volume output. The K7's volume knob will not affect the output level in this mode.

6.4 Control de volum

Rotate the large volume knob on the front panel to adjust the listening volume. The RGB indicator light around the knob changes color to indicate the current audio samptaxa de ling:

• Blau: 48kHz and below
• groc: Per sobre de 48 kHz
• Verd: DSD format

7. Connecting to Mobile Devices

The FiiO K7 can be used as a USB DAC with compatible mobile phones. Note that the K7 does not have a battery and requires external power.

7.1 Android Phones

Per connectar-se a un telèfon Android:

1. Purchase an OTG (On-The-Go) cable (e.g., FiiO LD-TC1) to connect your Android phone to the K7's USB input.
2. Set the K7's Entrada switch to USB.
3. Set the K7's Sortida switch to the desired port (PO for headphones, PRE or LO for line-out).
4. On your Android phone, ensure that USB debugging is enabled in Developer Options. Some playback software may also require specific USB output settings to be enabled or disabled.

7.2 iPhone/iPad

To connect to an iPhone or iPad:

1. Purchase a Lightning to USB B data cable that supports OTG function (e.g., FiiO LD-LT1).
2. Connect your iPhone/iPad to the K7's USB input using the OTG cable.
3. Set the K7's Entrada switch to USB.
4. Set the K7's Sortida switch to the desired port (PO for headphones, PRE or LO for line-out).

8. Especificacions

Key technical specifications of the FiiO K7 Desktop DAC and Headphone Ampmés viu:

8.1 Arquitectura interna

Image 8.1: Block diagram illustrating the balanced DAC/Amplifier architecture of the FiiO K7.

Image 8.2: Close-up of the fully balanced THX AAA 788+ amplifier section, highlighting its power output capabilities.

Image 8.3: Close-up of the dual AK4493SEQ DAC chips, responsible for refined sound reproduction.

Image 8.4: Diagram of the 12V/24W low-noise power supply, ensuring clean power for the audio circuits.

9. Manteniment

Per garantir la longevitat i el rendiment òptim del vostre FiiO K7, seguiu aquestes pautes de manteniment:

• Neteja: Regularly wipe the device with a soft, dry, and lint-free cloth. Avoid using abrasive cleaners, solvents, or chemical sprays, as these can damage the finish or internal components.
• Emmagatzematge: Quan no l'utilitzeu durant períodes prolongats, guardeu el dispositiu en un lloc fresc i sec, allunyat de la llum solar directa i de temperatures extremes.
• Ventilació: Ensure that the ventilation holes are not obstructed by dust or debris. Periodically clean them gently with a soft brush or compressed air.
• Gestió de cables: Avoid bending or crimping cables excessively, especially near connectors, to prevent damage.

10. Solució De Problemes

Si teniu problemes amb el vostre FiiO K7, consulteu els següents problemes i solucions habituals:

• Sense sortida de so:
  • Check if the K7 is powered on and the power adapter is securely connected.
  • Verify that the correct input source is selected using the Entrada botó.
  • Assegureu-vos el Sortida switch is set to the appropriate mode (PO for headphones, PRE/LO for line-out).
  • Confirm that your headphones or speakers are properly connected and their volume is not muted or too low.
  • If using USB input, ensure the K7 is recognized by your computer/mobile device and selected as the default audio output.
• So distorsionat:
  • Comproveu el Guanyar switch. If using sensitive headphones, switch to 'L' (Low Gain).
  • Reduce the volume level on both the K7 and your audio source.
  • Assegureu-vos que tots els cables estiguin connectats correctament i que no estiguin danyats.
  • Prova una font d'àudio diferent o file to rule out source-specific issues.
• Device Not Recognized (USB):
  • Ensure the USB cable is securely connected to both the K7 and your computer/mobile device.
  • Prova un port USB diferent de l'ordinador o un cable USB diferent.
  • For Android phones, ensure USB debugging is enabled in Developer Options.
  • Reinicieu l'ordinador o el dispositiu mòbil.
• Connexió intermitent:
  • Comproveu si hi ha connexions de cable soltes.
  • Assegureu-vos que la font d'alimentació sigui estable.
  • Avoid placing the K7 near strong electromagnetic interference sources.

11. Garantia i Suport

FiiO products are covered by a limited warranty. For detailed warranty terms and conditions, please refer to the warranty card included in your package or visit the official FiiO website. If you encounter any issues that cannot be resolved using the troubleshooting guide, please contact FiiO customer support or your authorized dealer for assistance.

Oficial de FiiO Weblloc: www.fiio.com

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