Aune S9c Pro DAC with Headphone Amplivligere brugervejledning

1. Produktet er slutview

The Aune S9c Pro is a high-fidelity Digital-to-Analog Converter (DAC) with an integrated headphone amplifier, designed to deliver exceptional audio performance for PC, speaker, and home audio systems. It incorporates advanced technologies such as a 10MHz clock input, dual DAC chips operating in clock sync mode, and a fully-discrete amplifier with Twin JFETs, ensuring pure, detailed, and powerful sound reproduction.

Figure 1: Aune S9c Pro DAC with Headphone Ampfjernbetjening.

Nøglefunktioner omfatter:

• 2nd Generation PLL Core & 10MHz Clock Input: Ensures ultra-low jitter and natural, vivid sound.
• Onboard-IIS Differential Isolation Transmission Technology: Provides clean and interference-free signal transmission.
• Dual ES9068 DAC Chips: Work in clock synchronization mode for optimized performance.
• Fully-Discrete Amplifier with Twin JFET: Delivers powerful and rich-sounding output with fast transient response.
• Multiple Headphone Outputs: Includes 6.35mm, balanced 4.4mm, and XLR jacks for broad compatibility.
• Two Tuning Modes: Offers Standard Mode (fast locking, low latency, neutral sound) and Pure Mode (precise clock signals, higher sound density, better soundstagog).
• Robust strømforsyning: Features a 50W toroidal low-ripple analog linear transformer and 23900µF capacitor array.

2. Opsætningsvejledning

2.1 Udpakning og inspektion

Carefully remove the Aune S9c Pro from its packaging. Inspect the unit for any signs of damage. Ensure all accessories listed in the product packaging are present.

2.2 Strømtilslutning

Connect the provided AC power cable to the "MAIN POWER INPUT" port on the rear of the S9c Pro and then to a standard 110V AC power outlet. Vigtig: This product is designed for 110V voltage. Using excessive voltage vil beskadige produktet.

2.3 Lydindgangsforbindelser

The S9c Pro supports various digital audio inputs:

• USB-indgang: Connect your computer or digital audio source using a USB Type-B cable to the "USB" port.
• Koaksial indgang: Use a coaxial cable to connect to the "COAX" port from your digital audio source.
• Optisk indgang: Use an optical fiber cable to connect to the "OPT" port from your digital audio source.
• AES input: Use an AES/EBU cable to connect to the "AES" port from your digital audio source.
• External Clock Input (10MHz): For enhanced precision, connect an external 10MHz clock source (e.g., Aune S1c, SC1, XC1) to the dedicated "10M IN" port.

2.4 Lydudgangsforbindelser

The S9c Pro offers multiple output options:

• Hovedtelefonudgange:
  • 6.35 mm hovedtelefonstik: Til hovedtelefoner med én ende.
  • Balanced 4.4mm Headphone Jack: Til balancerede hovedtelefoner.
  • Balanced 4-pin XLR Headphone Socket: Til balancerede hovedtelefoner.
• Linieudgange:
  • RCA Variable Line Out: For at oprette forbindelse til en amplifier or powered speakers via RCA cables.
  • XLR Variable Line Out (L/R): For at oprette forbindelse til en amplifier or powered speakers via balanced XLR cables.

Figure 2: Rear panel connections of the Aune S9c Pro.

3. Betjeningsvejledning

3.1 Betjeningselementer på frontpanelet

Figure 3: Front panel controls and display.

• Multifunktionsknap: This single knob controls multiple functions.
  • Valg af input: A single press of the multifunction knob cycles through available digital inputs (USB, Coaxial, Optical, AES).
  • Outputvalg: A double press of the multifunction knob switches between Line Out (variable) and Headphone Out.
  • Lydstyrkekontrol: Rotate the multifunction knob clockwise to increase volume and counter-clockwise to decrease volume.
  • Tuning Mode Selection: A long press of the multifunction knob switches between MODE 1 (Standard Mode) and MODE 2 (Pure Mode).
• Skærm: Shows current input, output mode, sample rate, volume level, and MQA status.

3.2 Fjernbetjening

The included all-aluminum remote control provides convenient access to key functions:

• Valg af input: Dedicated buttons for input switching.
• Lydstyrkekontrol: Volume up and down buttons.
• Stum: Mute/unmute audio output.
• Valg af tilstand: Switch between MODE 1 and MODE 2.

Figure 4: Aune S9c Pro with its multi-function knob and all-aluminum remote.

3.3 Operationel demonstrationsvideo

4. Avancerede funktioner

4.1 Clock Synchronization Technology

The S9c Pro features a 2nd generation PLL core, a technological breakthrough that took four years to develop. This complex algorithm enables the output of frequencies corresponding to different resolutions with ultra-low jitter. The clock source is fed to both the USB XMOS and the DAC part simultaneously, resulting in natural and vivid sound. The 10MHz external clock input provides further possibilities for sound exploration.

Figure 5: The 2nd Gen PLL Core, central to the S9c Pro's precise clocking.

4.2 IIS Differential Transmission Isolation Technology & Dual DAC Chips

The S9c Pro utilizes a special onboard-IIS differential isolation transmission technology. IIS signals from USB and those converted from coaxial/AES/optical inputs are reshaped by the PLL core and transmitted via symmetrical circuit chips, minimizing interference. Furthermore, the S9c Pro employs two ES9068 DAC chips that work in clock synchronization mode, optimizing their potential for superior audio conversion.

Figure 6: IIS Differential Transmission and Dual DAC Chip implementation.

4.3 Fully-Discrete Amplifier with Twin JFET

The S9c Pro features a fully-discrete amplifier circuit with fast transient response. It incorporates twin JFETs (junction field effect transistors) at the input stage, known for their high impedance and mellow sound. Coupled with a +15V linear power supply, the amplifier delivers up to 5W of output power, capable of driving a wide range of headphones and IEMs effectively. The customized amp output voltage curve ensures optimal performance for both headphones and in-ear monitors.

Figure 7: Headphone output power specifications for various impedances.

Figure 8: Fully-Discrete Amp architecture and available tuning modes.

5. Vedligeholdelse

To ensure the longevity and optimal performance of your Aune S9c Pro, follow these maintenance guidelines:

• Rensning: Use a soft, dry cloth to wipe the exterior of the unit. Avoid using liquid cleaners, aerosols, or abrasive materials, as they may damage the finish or internal components.
• Ventilation: Ensure the unit has adequate ventilation. Do not block the ventilation openings.
• Miljø: Operate the S9c Pro in a clean, dry environment, away from direct sunlight, heat sources, and excessive dust or moisture.
• Sluk: Always power off the unit and disconnect it from the power outlet before cleaning or if it will be unused for an extended period.

6. Fejlfinding

If you encounter issues with your Aune S9c Pro, please refer to the following common troubleshooting steps:

• Ingen strøm:
  • Ensure the power cable is securely connected to both the unit and the 110V power outlet.
  • Check if the power switch on the rear panel is in the ON position.
  • Kontroller, at stikkontakten fungerer ved at tilslutte en anden enhed.
• Ingen lydoutput:
  • Confirm the correct input source is selected on the S9c Pro's display.
  • Ensure the output mode is set to "Headphone" for headphones or "Line Out" for external ampløftere/højttalere.
  • Kontroller alle lydkabler for sikre forbindelser.
  • Increase the volume level on the S9c Pro and your connected audio equipment.
  • Verify that your headphones or speakers are functioning correctly.
• Forvrænget eller dårlig lydkvalitet:
  • Tjek kvaliteten af ​​din lydkilde og dine kabler.
  • Sørg for sample rate displayed on the S9c Pro matches your audio source.
  • Try switching between MODE 1 and MODE 2 tuning modes to see if it improves sound.
  • Ensure the product is used at 110V voltage. Overdreven voltage will damage the product and affect performance.
• Fjernbetjeningen reagerer ikke:
  • Ensure there are no obstructions between the remote and the unit's remote control receiver.
  • Kontrollér og udskift batterierne i fjernbetjeningen om nødvendigt.

7. Specifikationer

8. Garanti og support

Aune is committed to providing excellent customer service and support for its products.

• Garanti: All Aune products come with a 2-year after-sales service.
• Produktets tilstand: All products are brand new and delicately packaged. If you find any traces of use upon receipt, it may be due to logistics and warehousing; please contact customer service to resolve the issue.
• Eftersalgsservice: Aune has a comprehensive after-sales system. For any issues during product use, please contact us directly for prompt assistance and a satisfactory resolution.

For further assistance or inquiries, please visit the official Aune store or contact their customer support channels.