Aune S9c Pro DAC with Headphone AmpPanduan Pengguna lifier

1. Produk Lebihview

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 Amppenguat dan remote control.

Fitur utama meliputi:

• 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 soundstagdan).
• Catu Daya yang Kuat: Features a 50W toroidal low-ripple analog linear transformer and 23900µF capacitor array.

2. Panduan Pengaturan

2.1 Pembongkaran dan Pemeriksaan

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 Sambungan Daya

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. Penting: This product is designed for 110V voltage. Using excessive voltage akan merusak produk.

2.3 Koneksi Input Audio

The S9c Pro supports various digital audio inputs:

• Input USB: Connect your computer or digital audio source using a USB Type-B cable to the "USB" port.
• Masukan koaksial: Use a coaxial cable to connect to the "COAX" port from your digital audio source.
• Masukan Optik: Use an optical fiber cable to connect to the "OPT" port from your digital audio source.
• Masukan AES: 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 Koneksi Output Audio

The S9c Pro offers multiple output options:

• Keluaran Headphone:
  • Jack Headphone 6.35mm: For single-ended headphones.
  • Balanced 4.4mm Headphone Jack: Untuk headphone yang seimbang.
  • Balanced 4-pin XLR Headphone Socket: Untuk headphone yang seimbang.
• Output Garis:
  • RCA Variable Line Out: Untuk terhubung ke sebuah amplifier or powered speakers via RCA cables.
  • XLR Variable Line Out (L/R): Untuk terhubung ke sebuah amplifier or powered speakers via balanced XLR cables.

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

3. Petunjuk Pengoperasian

3.1 Kontrol Panel Depan

Gambar 3: Kontrol dan tampilan panel depan.

• Tombol Multifungsi: This single knob controls multiple functions.
  • Pemilihan Input: A single press of the multifunction knob cycles through available digital inputs (USB, Coaxial, Optical, AES).
  • Pilihan Keluaran: A double press of the multifunction knob switches between Line Out (variable) and Headphone Out.
  • Kontrol Volume: 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).
• Tampilan Layar: Shows current input, output mode, sample rate, volume level, and MQA status.

3.2 Kontrol Jarak Jauh

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

• Pemilihan Input: Dedicated buttons for input switching.
• Kontrol Volume: Volume up and down buttons.
• Bisu: Mematikan/mengaktifkan suara output audio.
• Pemilihan Mode: Switch between MODE 1 and MODE 2.

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

3.3 Video Demonstrasi Operasional

4. Fitur Lanjutan

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 volume keluarantage 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. Pemeliharaan

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

• Pembersihan: 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.
• Ventilasi: Ensure the unit has adequate ventilation. Do not block the ventilation openings.
• Lingkungan: Operate the S9c Pro in a clean, dry environment, away from direct sunlight, heat sources, and excessive dust or moisture.
• Matikan: 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. Penyelesaian masalah

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

• Tidak Ada Daya:
  • 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.
  • Verifikasi apakah stopkontak berfungsi dengan mencolokkan perangkat lain.
• Tidak Ada Keluaran Suara:
  • 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 amplifier/speaker.
  • Periksa semua kabel audio untuk memastikan sambungannya aman.
  • Increase the volume level on the S9c Pro and your connected audio equipment.
  • Verify that your headphones or speakers are functioning correctly.
• Kualitas Suara Terdistorsi atau Buruk:
  • Check the quality of your audio source and cables.
  • Pastikan 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. Volume berlebihantage will damage the product and affect performance.
• Kendali Jarak Jauh Tidak Merespons:
  • Ensure there are no obstructions between the remote and the unit's remote control receiver.
  • Periksa dan ganti baterai remote control jika perlu.

7. Spesifikasi

8. Garansi dan Dukungan

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

• Jaminan: All Aune products come with a 2-year after-sales service.
• Kondisi Produk: 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.
• Layanan Purnajual: 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.