Uvod
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".
Sadržaj paketa
Provjerite da li su sve stavke prisutne u paketu:
- Gustard X26III DAC Unit
- Daljinski upravljač
- Power Cable
- Gustard Card (Warranty/Information Card)
- USB kabel
Product Overview
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.
Ključne karakteristike
- 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.
- Svestrani ulazi: 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.
Interne komponente

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

Slika: Detaljna 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.

Slika: Detaljna view of the discrete Class-A output stage components, designed for low distortion and high fidelity audio output.
Setup
Priključci na stražnjoj ploči

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.
- Priključak za napajanje: 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.
- Analogni izlaz:
- For unbalanced connections, use RCA cables to connect the "Line out RCA Left" and "Line out RCA Right" ports to your amplifier ili aktivni zvučnici.
- For balanced connections, use XLR cables to connect the "Line out XLR Left" and "Line out XLR Right" ports to your balanced amplifier ili aktivni zvučnici.
- Digitalni ulazi: Connect your digital audio sources (e.g., PC, CD player, streamer) to the appropriate input ports:
- USB: Za povezivanje sa računarom.
- LAN: For network streaming capabilities.
- Optički (TOSLINK): Za optičke digitalne audio izvore.
- Koaksijalni: Za koaksijalne digitalne audio izvore.
- AES: For professional AES/EBU digital audio sources.
- IIS: For high-performance IIS digital audio sources, typically from dedicated DDCs.
- Ulaz sata: 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.
Uputstvo za upotrebu
Kontrole na prednjoj ploči
The front panel features a display and control buttons for basic operation:
- Prikaz: Prikazuje trenutni ulaz, sampstopa i druge informacije o statusu.
- Birač ulaza: Cycle through available digital inputs.
- Meni/Postavke: Access various settings such as filters and NOS mode.
- Kontrola jačine zvuka: Adjust output volume (if variable output is enabled).
Mrežni prijenos
The X26III supports various network streaming protocols. To manage these, access the device's web interfejs:
- Ensure the X26III is connected to your network via the LAN port.
- Na računaru povezanom na istu mrežu otvorite web pretraživač.
- Enter
//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.

Slika: Snimak ekrana 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).
- PCM filteri: 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.
Održavanje
- Keep the device in a clean, dry, and well-ventilated area.
- Avoid direct sunlight, heat sources, and excessive humidity.
- Vanjski dio čistite mekom, suhom krpom. Ne koristite tekuća sredstva za čišćenje ili otapala.
- Osigurajte odgovarajuću ventilaciju oko jedinice kako biste spriječili pregrijavanje.
- Povremeno provjeravajte kablovske spojeve kako biste bili sigurni da su sigurni.
Rješavanje problema
Nema izlaza zvuka
- Check all audio cable connections (RCA/XLR) to your amplifier ili aktivni zvučnici.
- Verify that the correct input source is selected on the X26III.
- Osigurajte svoje ampZvučnici/uređaji su uključeni i postavljeni na ispravan ulaz.
- Check the volume level on both the X26III and your amplifier.
- 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.
- Provjerite da li vaša mreža ispravno funkcioniše.
- Pristupite web interfejs (
//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).
Izobličen ili loš kvalitet zvuka
- Check the quality of your digital audio cables.
- Osigurajte 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.
Specifikacije

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.
| Dimenzije proizvoda | 12.99 x 10.24 x 2.56 inča (330 x 260 x 65 mm) |
| Težina | 15.04 funti (6.82 kg) |
| Broj modela stavke | X26III |
| Brand | AOSHIDA (Manufacturer: Gustard) |
| Napajanje | AC115V/230V 50/60Hz (Switchable) |
| Potrošnja energije | <25W |
| Interface Type | PCM podrška | MQA podrška | DSD (Native) Support | DSD (DoP) Support |
|---|---|---|---|---|
| USB, IIS, Streamer (LAN) | 44.1kHz-768kHz, 16bit-32bit | Full Decoding | DSD64-DSD512 | DSD64-DSD256 |
| AES, Coaxial, Optical | 44.1kHz-192kHz, 16bit-24bit | Full Decoding | Nepodržano | 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.
| Frekvencijski odziv | 20-20kHz / +0.3dB |
| Dynamic Range | >128dB |
| Odnos signala i šuma | >127dB |
| Preslušavanje kanala | -132dB @ 10kHz |
| THD+N | <=0.0001% @ 1kHz |
| IMD | <0.001% @ -1dbfs |
| RCA izlazni nivo | 2.5Vrms (VOLUME FIXED) |
| RCA izlazna impedancija | 100Ω |
| XLR Output Level | 5.1Vrms (VOLUME FIXED) |
| 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.
Garancija i podrška
For warranty information and technical support, please refer to the Gustard card included in your package or visit the official AOSHIDA webSačuvajte račun kao dokaz o kupovini za reklamacije u slučaju reklamacije.
For further assistance, you may contact AOSHIDA customer service through their official channels.