1. Муқаддима
This manual provides detailed instructions for the setup, operation, and maintenance of your Gustard R30 True 1-bit Digital-to-Analog Converter (DAC). The R30 is designed to deliver high-fidelity audio reproduction through its advanced discrete R-2R architecture and versatile input/output options.

Тасвири 1.1: Пеш view of the Gustard R30 True 1-bit DAC.
1.1. Дар қуттӣ чӣ мавҷуд аст
- Gustard R30 DAC Unit
- Сими USB
- Назорати дурдаст
- Кабели барқ
- Gustard Card (Warranty/Information)
2. Хусусиятҳои асосӣ
The Gustard R30 incorporates several advanced technologies to ensure exceptional audio performance:
2.1. Discrete R-2R Module
The R30 utilizes a discrete R-2R network with precisely matched resistors for digital-to-analog conversion. This architecture aims to reproduce audio signals with high fidelity and natural sound characteristics, distinct from delta-sigma DAC designs.

Тасвири 2.1: Муфассал view of the Discrete R-2R DAC module.
2.2. True 1-bit DSD Decoding
The R30 supports native DSD1024 resolution through its true 1-bit DSD DAC architecture. In DIRECT mode, DSD signals are processed without PCM conversion, preserving the original digital stream for authentic playback.
2.3. Versatile Digital Inputs
The device offers multiple digital input options, including USB, LAN, Optical, Coaxial, AES, and IIS. USB, LAN, and AES inputs support audio decoding up to PCM 32Bit/768kHz and DSD512, allowing connection to various source devices.
2.4. Flexible Analog Outputs
Analog audio outputs are provided via RCA and XLR connections, facilitating integration with power amplifiers, active speakers, and other Hi-Fi audio equipment.
2.5. GCLK-02 Clock Module and External Clock Support
The integrated GCLK-02 clock module utilizes advanced PLL technology for precise clock signal processing. The R30 also supports external 10MHz clock input for further enhancement of audio quality.

Тасвири 2.2: дохилӣ view showing FPGA, GCLK-02 Clock Module, OCXO clock, and Digital Filter.
2.6. Network Streaming Capabilities
The R30 supports various network streaming protocols and services, including Roon Bridge, AirPlay, UPnP/DLNA, HQPlayer NAA, mConnect, BubbleUPnP, and Spotify. Access these features by navigating to http://r30.local дар а web браузери дар дастгоҳи пайвастшуда.

Image 2.3: Supported network streaming applications.
2.7. 12V Trigger System
The DAC-R30 includes 12V trigger input and output, enabling synchronized power on/off with compatible audio components for streamlined system control.
3. Танзимот
3.1. Ҷойгиршавӣ
Place the R30 on a stable, level surface away from direct heat sources, moisture, and strong electromagnetic fields. Ensure adequate ventilation around the unit.
3.2. Пайвастшавии барқ
- Connect the provided power cable to the AC inlet on the rear panel of the R30.
- Нӯги дигари сими барқро ба васлаки мувофиқи AC васл кунед.
3.3. Пайвастҳои вуруди аудио
Connect your digital audio source(s) to the corresponding input ports on the R30's rear panel:
- USB: For connecting to a computer or other USB audio source.
- Оптикӣ (TOSLINK): For connecting to TVs, CD players, or other optical digital sources.
- Coaxial (RCA): For connecting to CD transports or other coaxial digital sources.
- AES (XLR): For professional audio equipment with AES/EBU digital output.
- IIS (HDMI): For connecting to compatible IIS-enabled audio devices.
- LAN (Ethernet): For network streaming from a local network or internet services.
3.4. Пайвастҳои баромади аудио
Connect the R30 to your ampбаландгӯяк ё баландгӯякҳои фаъол:
- Натиҷаҳои RCA: Use high-quality RCA cables to connect to the analog inputs of your ampбаландгӯяк ё баландгӯякҳои фаъол.
- Натиҷаҳои XLR: Use balanced XLR cables for optimal signal integrity when connecting to compatible balanced inputs on your ampбаландгӯяк ё баландгӯякҳои фаъол.
3.5. 12V Trigger Connection (Optional)
If your other audio components support 12V trigger, connect a 12V trigger cable between the R30 and the compatible device to enable synchronized power control.
4. Амалиёт
4.1. Фаъол/хомӯш
Press the standby switch on the front panel to power on or power off the unit. The display will illuminate upon power-on.

Image 4.1: Front panel layout with display and touch interface.
4.2. Интихоби вуруд
Use the touch interface buttons on the front panel or the remote control to cycle through the available digital inputs (USB, Optical, Coaxial, AES, IIS, LAN). The selected input will be indicated on the display.
4.3. Volume Control (Preamp Функсия)
If using the R30 as a preamp, adjust the volume using the '+' and '-' buttons on the front panel or the remote control. The volume level will be shown on the display. Ensure the volume is set to a safe level before playing audio.
4.4. Network Streaming
To configure and manage network streaming services (Roon Bridge, AirPlay, etc.), open a web browser on a device connected to the same network as the R30 and navigate to http://r30.local. Follow the on-screen instructions to enable or disable specific protocols.

Image 4.2: Supported network streaming protocols.
4.5. Вазифаҳои идоракунии дурдаст
The included remote control provides convenient access to power, input selection, volume adjustment, and other settings. Refer to the remote control diagram for specific button functions.

Image 4.3: Gustard R30 DAC and its remote control.
5. Нигоҳдорӣ
To ensure the longevity and optimal performance of your Gustard R30 DAC:
- Тозакунӣ: Барои тоза кардани берунии дастгоҳ матои мулоим ва хушкро истифода баред. Аз тозакунандаҳои абразивӣ ё ҳалкунандаҳо худдорӣ кунед.
- Вентилятсия: Боварӣ ҳосил кунед, ки сӯрохиҳои вентилятсия монеъ нашудаанд.
- Нигоҳдорӣ: Агар дастгоҳ барои муддати тӯлонӣ нигоҳ дошта шавад, онро аз барқ ҷудо кунед ва дар ҷои хунук ва хушк нигоҳ доред.
- Қувва: Always disconnect the power cable before performing any cleaning or maintenance.
6. Баррасии мушкилот
If you encounter issues with your R30 DAC, refer to the following common troubleshooting steps:
- Не қудрат:
- Check if the power cable is securely connected to both the R30 and the power outlet.
- Боварӣ ҳосил кунед, ки васлаки барқ кор мекунад.
- Ensure the standby switch on the front panel is pressed.
- Не баромади садо:
- Confirm that the correct input source is selected on the R30.
- Check all audio cables (RCA/XLR) for secure connections between the R30 and your ampбаландгӯякҳо / баландгӯякҳои фаъол.
- худро таъмин кунед amplifier/active speakers are powered on and set to the correct input.
- Adjust the volume level on the R30 and your ampлифер.
- For USB input, ensure the necessary drivers are installed on your computer (if required).
- Intermittent Audio/Distortion:
- Ҳамаи пайвастҳои кабелро аз рӯи сустӣ ё осеб тафтиш кунед.
- Боварӣ ҳосил кунед, ки сample rate and bit depth settings on your source device match the R30's capabilities.
- Try a different input source or cable to isolate the issue.
- Network Streaming Issues:
- Ensure the R30 is connected to your network via an Ethernet cable.
- Боварӣ ҳосил кунед, ки шабакаи шумо дуруст кор мекунад.
- Дастрасӣ http://r30.local to check the status of streaming services and enable/disable them as needed.
- Restart your network router and the R30.
7. Мушаххасоти
| Хусусият | Мушаххасоти |
|---|---|
| Андозаҳои маҳсулот | 15.75 x 11.81 x 0.04 инч |
| Вазн | 22.05 фунт |
| Рақами модели ашё | R30 |
| Истеҳсолкунанда | Густард |
| Шумораи каналҳо | 2 |
| Намудҳои интерфейс | AES, Coaxial, IIS, LAN, Optical, USB |
| Материал | Алюминий |
8. Кафолат ва дастгирӣ
For warranty information and technical support, please refer to the Gustard Card included in your product packaging or visit the official Gustard website. Contact the seller or manufacturer directly for assistance with product-related issues or service requests.





