pengenalan
This manual provides detailed instructions for the setup, operation, and maintenance of your AOSHIDA Gustard X26III Streamer DAC. Please read this manual thoroughly before using the device to ensure optimal performance and longevity.

Image: The Gustard X26III Streamer DAC in black, accompanied by its remote control. The front panel displays "Streamer EXT DSD 24.5M FIXED".
Kandungan Pakej
Sahkan bahawa semua item terdapat dalam pakej:
- Gustard X26III DAC Unit
- Alat Kawalan Jauh
- Kabel Kuasa
- Gustard Card (Warranty/Information Card)
- Kabel USB
Produk Selesaiview
The Gustard X26III is a high-performance Streamer DAC designed for discerning audio enthusiasts. It features advanced components and versatile connectivity options to deliver exceptional sound quality.
Ciri-ciri Utama
- Dual ES9039SPRO Chips: Utilizes two ESS flagship ES9039SPRO DAC chips for independent left and right channel processing, supported by independent power supply and grounding systems.
- Input Serbaguna: Supports USB, LAN, optical, coaxial, AES, and IIS digital inputs. USB, LAN, AES, and IIS inputs support PCM up to 32Bit/768kHz and DSD512.
- GCLK-02 High-Precision Clock: Incorporates advanced PLL technology for stable and accurate clock signals, with external clock support.
- Discrete Class-A Output: Features a meticulously designed output stage for low distortion and noise, ensuring sound purity.
- Flexible Output Connections: Provides RCA and XLR analog audio outputs for connection to various audio equipment.

Image: The Gustard X26III DAC (silver) placed on an audio rack, with a tablet and smartphone displaying music streaming applications, illustrating its integration into a modern audio system.
Komponen Dalaman

Imej: Dari dekat view of the internal circuit board, highlighting the two ES9039SPRO DAC chips, which are central to the device's audio processing capabilities.

Imej: A terperinci view of the FPGA Programmable Logic Chip on the circuit board, responsible for digital integrated circuits, clock management, and signal processing.

Image: A close-up of the network bridge system board, illustrating the hardware designed for music playback and network connectivity.

Image: A close-up of the GCLK-02 high-precision clock module, indicating its role in maintaining timing accuracy for audio signals.

Imej: A terperinci view of the discrete Class-A output stage components, designed for low distortion and high fidelity audio output.
Persediaan
Sambungan Panel Belakang

Image: The rear panel of the Gustard X26III DAC, clearly labeling all input and output ports including RCA, XLR, LAN, USB, Optical, Coaxial, AES, IIS, Clock input, and power connections.
- Sambungan Kuasa: Connect the provided power cable to the AC input on the rear panel. Ensure the voltage switch (115V/230V) is set correctly for your region before connecting to a power outlet.
- Keluaran Analog:
- For unbalanced connections, use RCA cables to connect the "Line out RCA Left" and "Line out RCA Right" ports to your amppembesar atau pembesar suara aktif.
- For balanced connections, use XLR cables to connect the "Line out XLR Left" and "Line out XLR Right" ports to your balanced amppembesar atau pembesar suara aktif.
- Input Digital: Connect your digital audio sources (e.g., PC, CD player, streamer) to the appropriate input ports:
- USB: Untuk menyambung ke komputer.
- LAN: For network streaming capabilities.
- Optik (TOSLINK): For optical digital audio sources.
- Sepaksi: For coaxial digital audio sources.
- AES: For professional AES/EBU digital audio sources.
- IIS: For high-performance IIS digital audio sources, typically from dedicated DDCs.
- Input Jam: For connecting an external high-precision clock (e.g., GCLK-02) to further enhance audio synchronization.
Once all connections are made, switch on the power using the power switch on the rear panel.
Arahan Operasi
Kawalan Panel Hadapan
The front panel features a display and control buttons for basic operation:
- paparan: Menunjukkan input semasa, sample rate, and other status information.
- Pemilih Input: Cycle through available digital inputs.
- Menu/Tetapan: Access various settings such as filters and NOS mode.
- Kawalan Kelantangan: Adjust output volume (if variable output is enabled).
Penstriman Rangkaian
The X26III supports various network streaming protocols. To manage these, access the device's web antara muka:
- Ensure the X26III is connected to your network via the LAN port.
- Pada komputer yang disambungkan ke rangkaian yang sama, buka web pelayar.
- Masuk
//x26.localin the address bar. This will open the network bridge control page. - From this interface, you can enable or disable various streaming protocols such as AirPlay, Roon Bridge, UPnP/DLNA, HQPlayer NAA, and Spotify.

Image: A screenshot of the web-based control interface for the Gustard X26III, showing options to manage network streaming protocols like AirPlay, Roon Bridge, UPnP/DLNA, HQPlayer NAA, and Spotify.
Digital Filters and NOS Mode
The X26III offers various digital filters and a Non-Oversampling (NOS) mode to tailor the sound to your preference. These settings can typically be accessed via the front panel menu or remote control.

Image: The front display of the Gustard X26III showing available settings for PCM filters (Vivid, Gentle, Composite), DSD filters (47K, 50K, 60K, 70K), and NOS mode (Disable, Enable).
- Penapis PCM: Select from options like VIVID, GENTLE, or COMPOSITE to adjust the sound characteristics for PCM audio.
- DSD Filters: Choose from various DSD filter frequencies (e.g., 47K, 50K, 60K, 70K).
- NOS Mode: Enable or disable Non-Oversampling mode. This mode bypasses digital filtering for a more direct sound.
Penyelenggaraan
- Keep the device in a clean, dry, and well-ventilated area.
- Avoid direct sunlight, heat sources, and excessive humidity.
- Bersihkan bahagian luar dengan kain lembut dan kering. Jangan gunakan pembersih cecair atau pelarut.
- Pastikan pengudaraan yang betul di sekeliling unit untuk mengelakkan terlalu panas.
- Periksa sambungan kabel secara berkala untuk memastikan ia selamat.
Menyelesaikan masalah
Tiada Keluaran Bunyi
- Check all audio cable connections (RCA/XLR) to your amppembesar atau pembesar suara aktif.
- Verify that the correct input source is selected on the X26III.
- Pastikan anda amplifier/speakers are powered on and set to the correct input.
- Check the volume level on both the X26III and your amplebih hidup.
- Confirm that the power cable is securely connected and the unit is powered on.
Network Streaming Issues
- Ensure the LAN cable is securely connected to both the X26III and your network router/switch.
- Sahkan bahawa rangkaian anda berfungsi dengan betul.
- Akses ke web antara muka (
//x26.local) and confirm that the desired streaming protocol (e.g., Roon Bridge, UPnP) is enabled. - Restart the X26III and your network equipment (router, switch).
Kualiti Bunyi Terherot atau Buruk
- Check the quality of your digital audio cables.
- Pastikan sample rate and bit depth of your source material are compatible with the X26III's capabilities.
- Experiment with different digital filter settings or NOS mode to see if it improves the sound.
- If using an external clock, ensure it is properly connected and synchronized.
Spesifikasi

Image: The Gustard X26III DAC (silver) highlighting its core features: ES9039SPRO Dual DAC, ES9311Q Dedicated Power Supply, DSP Autonomous Digital Filtering, 3 PCM Filters, 4 DSD Filters, and Support for NOS Mode.
| Dimensi Produk | 12.99 x 10.24 x 2.56 inci (330 x 260 x 65 mm) |
| Berat badan | 15.04 paun (6.82 kg) |
| Nombor Model Item | X26III |
| Jenama | AOSHIDA (Manufacturer: Gustard) |
| Bekalan Kuasa | AC115V/230V 50/60Hz (Switchable) |
| Penggunaan Kuasa | <25W |
| Jenis Antaramuka | Sokongan PCM | Sokongan MQA | DSD (Native) Support | DSD (DoP) Support |
|---|---|---|---|---|
| USB, IIS, Streamer (LAN) | 44.1kHz-768kHz, 16bit-32bit | Penyahkodan Penuh | DSD64-DSD512 | DSD64-DSD256 |
| AES, Coaxial, Optical | 44.1kHz-192kHz, 16bit-24bit | Penyahkodan Penuh | Tidak disokong | DSD64 |
Note: LAN supports Roon, AirPlay, UPnP, NAA, Spotify. Configuration via web page to enable/disable protocols. LAN speed 100/1000Mbps.
10M clock (BNC) input impedance 50 Ohm; -20dBm; CMOS square wave 0.2V-3.3V, Sine wave 0.5V-3.3V.
| Respons Kekerapan | 20-20kHz / +0.3dB |
| Julat Dinamik | >128dB |
| Nisbah Isyarat kepada Bunyi | >127dB |
| Saluran Crosstalk | -132dB @ 10kHz |
| THD+N | <=0.0001% @ 1kHz |
| IMD | <0.001% @ -1dbfs |
| Tahap Output RCA | 2.5Vrms (VOLUME TETAP) |
| Impedans Keluaran RCA | 100Ω |
| XLR Output Level | 5.1Vrms (VOLUME TETAP) |
| XLR Output Impedance | 100Ω |
| XLR Interface Definition | American Standard (1 ground, 2 hot, 3 cold) |

Image: A comprehensive table detailing the digital input capabilities, analog output performance metrics, and other general parameters of the Gustard X26III DAC.

Image: A graph illustrating the Total Harmonic Distortion plus Noise (THD+N) performance across various frequencies for the Gustard X26III DAC.

Image: A measurement graph displaying the Dynamic Range (AES17 standard) for the Gustard X26III, showing values for Channel 1 and Channel 2.

Image: A multitone test result graph, demonstrating the intermodulation distortion performance of the Gustard X26III DAC.
Waranti dan Sokongan
For warranty information and technical support, please refer to the Gustard card included in your package or visit the official AOSHIDA webtapak. Simpan resit pembelian anda sebagai bukti pembelian untuk tuntutan waranti.
For further assistance, you may contact AOSHIDA customer service through their official channels.