1. ઉત્પાદન ઓવરview
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 Amplifier and remote control.
મુખ્ય લાક્ષણિકતાઓમાં શામેલ છે:
- 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.
- બહુવિધ હેડફોન આઉટપુટ: 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 soundstagઇ).
- મજબૂત પાવર સપ્લાય: Features a 50W toroidal low-ripple analog linear transformer and 23900µF capacitor array.
2. સેટઅપ માર્ગદર્શિકા
2.1 અનપેકિંગ અને નિરીક્ષણ
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 પાવર કનેક્શન
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. મહત્વપૂર્ણ: This product is designed for 110V voltage. Using excessive voltage ઉત્પાદનને નુકસાન પહોંચાડશે.
૩.૩ ઓડિયો ઇનપુટ કનેક્શન્સ
The S9c Pro supports various digital audio inputs:
- યુએસબી ઇનપુટ: Connect your computer or digital audio source using a USB Type-B cable to the "USB" port.
- કોક્સિયલ ઇનપુટ: Use a coaxial cable to connect to the "COAX" port from your digital audio source.
- ઓપ્ટિકલ ઇનપુટ: Use an optical fiber cable to connect to the "OPT" port from your digital audio source.
- AES ઇનપુટ: 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.
૩.૪ ઓડિયો આઉટપુટ કનેક્શન્સ
The S9c Pro offers multiple output options:
- હેડફોન આઉટપુટ:
- 6.35mm હેડફોન જેક: For single-ended headphones.
- Balanced 4.4mm Headphone Jack: સંતુલિત હેડફોન માટે.
- Balanced 4-pin XLR Headphone Socket: સંતુલિત હેડફોન માટે.
- લાઇન આઉટપુટ:
- RCA Variable Line Out: For connecting to an amplifier or powered speakers via RCA cables.
- XLR Variable Line Out (L/R): For connecting to an amplifier or powered speakers via balanced XLR cables.

Figure 2: Rear panel connections of the Aune S9c Pro.
3. ઓપરેટિંગ સૂચનાઓ
3.1 ફ્રન્ટ પેનલ નિયંત્રણો

આકૃતિ 3: ફ્રન્ટ પેનલ નિયંત્રણો અને પ્રદર્શન.
- મલ્ટિફંક્શન નોબ: This single knob controls multiple functions.
- ઇનપુટ પસંદગી: A single press of the multifunction knob cycles through available digital inputs (USB, Coaxial, Optical, AES).
- આઉટપુટ પસંદગી: A double press of the multifunction knob switches between Line Out (variable) and Headphone Out.
- વોલ્યુમ નિયંત્રણ: 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).
- ડિસ્પ્લે સ્ક્રીન: Shows current input, output mode, sample rate, volume level, and MQA status.
3.2 રીમોટ કંટ્રોલ
The included all-aluminum remote control provides convenient access to key functions:
- ઇનપુટ પસંદગી: Dedicated buttons for input switching.
- વોલ્યુમ નિયંત્રણ: Volume up and down buttons.
- મ્યૂટ: Mute/unmute audio output.
- મોડ પસંદગી: Switch between MODE 1 and MODE 2.

Figure 4: Aune S9c Pro with its multi-function knob and all-aluminum remote.
૫.૫ ઓપરેશનલ ડેમોન્સ્ટ્રેશન વિડીયો
Video 1: A brief demonstration of the Aune S9c Pro DAC with Headphone Amp, શોકasing input selection, output switching, volume control, and tuning mode changes.
4. અદ્યતન સુવિધાઓ
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 આઉટપુટ વોલ્યુમtage 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. જાળવણી
To ensure the longevity and optimal performance of your Aune S9c Pro, follow these maintenance guidelines:
- સફાઈ: 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.
- વેન્ટિલેશન: Ensure the unit has adequate ventilation. Do not block the ventilation openings.
- પર્યાવરણ: Operate the S9c Pro in a clean, dry environment, away from direct sunlight, heat sources, and excessive dust or moisture.
- પાવર બંધ: 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. મુશ્કેલીનિવારણ
If you encounter issues with your Aune S9c Pro, please refer to the following common troubleshooting steps:
- કોઈ શક્તિ નથી:
- 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.
- બીજા ઉપકરણને પ્લગ ઇન કરીને પાવર આઉટલેટ કાર્યરત છે કે નહીં તેની ખાતરી કરો.
- કોઈ સાઉન્ડ આઉટપુટ નથી:
- 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 ampલિફાયર/સ્પીકર્સ.
- સુરક્ષિત કનેક્શન માટે બધા ઓડિયો કેબલ તપાસો.
- Increase the volume level on the S9c Pro and your connected audio equipment.
- Verify that your headphones or speakers are functioning correctly.
- વિકૃત અથવા નબળી અવાજ ગુણવત્તા:
- Check the quality of your audio source and cables.
- ખાતરી કરો કે એસample 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 voltagઇ. અતિશય વોલ્યુમtage will damage the product and affect performance.
- રીમોટ કંટ્રોલ પ્રતિસાદ આપતું નથી:
- Ensure there are no obstructions between the remote and the unit's remote control receiver.
- Check and replace the remote control batteries if necessary.
7. સ્પષ્ટીકરણો
| લક્ષણ | સ્પષ્ટીકરણ |
|---|---|
| ઉત્પાદન પરિમાણો | 11.3 x 2.4 x 8.3 ઇંચ |
| વસ્તુનું વજન | 9.55 પાઉન્ડ |
| આઇટમ મોડલ નંબર | S9c પ્રો |
| બ્રાન્ડ | ઉને |
| ઈન્ટરફેસ પ્રકાર | USB, Coaxial, Optical, AES |
| ચેનલોની સંખ્યા | 3 |
| ઉત્પાદક | aune |
| મૂળ દેશ | ચીન |
| Line Output Noise Floor | 2.04 µV |
| Line Output THD+N | 0.00022% |
| Headphone Output Noise Floor | 7.71 µV |
| Headphone Output THD+N | 0.00058% (1.78 Vrms /1 KHz 0 dB) |
8. વોરંટી અને સપોર્ટ
Aune is committed to providing excellent customer service and support for its products.
- વોરંટી: All Aune products come with a 2-year after-sales service.
- ઉત્પાદન સ્થિતિ: 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.
- વેચાણ પછીની સેવા: 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.





