Gustard R30 True 1-bittinen DA-muunnin käyttöohje

1. Johdanto

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.

Kuva 1.1: Edessä view of the Gustard R30 True 1-bit DAC.

1.1. Mitä laatikossa on

• Gustard R30 DAC Unit
• USB-kaapeli
• Kaukosäädin
• Virtakaapeli
• Gustard Card (Warranty/Information)

2. Tärkeimmät ominaisuudet

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.

Kuva 2.1: Yksityiskohtainen 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.

Kuva 2.2: Sisäinen 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 kohdassa a web selain yhdistetyssä laitteessa.

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. Asennus

3.1. sijoitus

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. Virtaliitäntä

1. Connect the provided power cable to the AC inlet on the rear panel of the R30.
2. Kytke virtajohdon toinen pää sopivaan pistorasiaan.

3.3. Audiotuloliitännät

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.
• Optinen (TOSLINK): For connecting to TVs, CD players, or other optical digital sources.
• Koaksiaali (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.
• Lähiverkko (Ethernet): For network streaming from a local network or internet services.

3.4. Audiolähtöliitännät

Connect the R30 to your amplifier- tai aktiivikaiuttimet:

• RCA-lähdöt: Use high-quality RCA cables to connect to the analog inputs of your ampnostin tai aktiivikaiuttimet.
• XLR-lähdöt: Use balanced XLR cables for optimal signal integrity when connecting to compatible balanced inputs on your ampnostin tai aktiivikaiuttimet.

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. Käyttö

4.1. Virta päälle/pois

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. Tulon valinta

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 Toiminto)

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. Verkkosuoratoisto

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. Kaukosäätimen toiminnot

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. Huolto

To ensure the longevity and optimal performance of your Gustard R30 DAC:

• Puhdistus: Puhdista laitteen ulkopinta pehmeällä, kuivalla liinalla. Vältä hankaavia puhdistusaineita tai liuottimia.
• Ilmanvaihto: Varmista, että tuuletusaukot eivät ole tukossa.
• Varastointi: Jos laitetta säilytetään pitkään, irrota se virtalähteestä ja säilytä sitä viileässä ja kuivassa paikassa.
• Teho: Irrota aina virtajohto pistorasiasta ennen puhdistus- tai huoltotöitä.

6. Vianmääritys

If you encounter issues with your R30 DAC, refer to the following common troubleshooting steps:

• Ei virtaa:
  • Check if the power cable is securely connected to both the R30 and the power outlet.
  • Varmista, että pistorasia toimii.
  • Ensure the standby switch on the front panel is pressed.
• Ei äänilähtöä:
  • 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 ampnostin/aktiivikaiuttimet.
  • Varmista omasi amplifier/aktiivikaiuttimet on kytketty päälle ja asetettu oikealle tulolle.
  • Adjust the volume level on the R30 and your ampelävämpi.
  • For USB input, ensure the necessary drivers are installed on your computer (if required).
• Intermittent Audio/Distortion:
  • Tarkista kaikki kaapeliliitännät löysyyden tai vaurioiden varalta.
  • Varmista, että sample rate and bit depth settings on your source device match the R30's capabilities.
  • Kokeile toista tulolähdettä tai kaapelia ongelman selvittämiseksi.
• Verkkosuoratoisto-ongelmat:
  • Ensure the R30 is connected to your network via an Ethernet cable.
  • Verify that your network is functioning correctly.
  • Pääsy http://r30.local to check the status of streaming services and enable/disable them as needed.
  • Restart your network router and the R30.

7. Tekniset tiedot

8. Takuu ja tuki

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.