Gustard AUDALYTIC DR70 R2R Streaming DAC User Manual

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The Gustard AUDALYTIC DR70 is an advanced R2R Streaming DAC designed for high-fidelity home audio systems. It features a proprietary discrete R-2R module, native 1-bit DSD D/A conversion, and an FPGA-implemented logic for precise audio processing. The device also incorporates a dedicated network bridge system for seamless music playback and a femtosecond-grade CK01 clock module for superior timing accuracy.

Imatge: Més deview of key features including R2R, 1-Bit DSD, FPGA, and CK01 Clock Module.

Característiques principals:

• Proprietary Discrete R-2R Module: Utilizes a resistor-based switching network for direct and natural digital-to-analog conversion, requiring high precision in the resistor network.
• 1-Bit DSD: True 1-Bit DSD D/A Converter with native DSD512 support, equivalent to 8x oversampling of SACD-standard DSD64.
• FPGA Implementation: Employs a field-programmable gate array for flexible logic functions, clock management, and digital shaping, including DoP demodulation and PCM/DSD depop switching.
• Bridge System: Hardware purpose-built for music playback, running on the dedicated CelWare3.x system, supporting software-controlled playback applications and maximizing playback efficiency.
• XMOS XU316: Features the third-generation USB Audio XU316, supporting up to PCM 768kHz and DSD512.
• CK01 Clock Module: Delivers femtosecond-grade precision timing for the entire system.
• Dedicated Power Supply Groups: Independent voltage regulation for each circuit group minimizes interference and ensures optimal performance.
• Full Aluminum Chassis: Anodized finish in black or silver.
• Remote Control Support: Per a un funcionament còmode.
• Pantalla LCD: With adjustable brightness and sleep mode.

Què hi ha a la caixa

The following items are included with your Gustard AUDALYTIC DR70:

• DR70 Main Unit
• Cable d'alimentació
• Cable tipus C.
• Control remot
• Antena Bluetooth
• Targeta de garantia

Image: Visual representation of the DR70 main unit, warranty card, Bluetooth antenna, power cord, Type-C cable, and remote control.

Configuració i connexions

Controls del panell frontal:

Imatge: Frontal view of the DR70 unit, highlighting the touch standby control, display area, and touch interface.

1. Botó d'encesa: Press and hold to power off; short press to mute/unmute.
2. Pantalla de visualització: Displays input source, audio format, sampling rate, and volume level in real time.
3. Botons de volum (+/-): Use to adjust volume (00-100 levels).
4. Botó de configuració: Short press to switch audio input sources; press and hold to enter/exit the menu.

Connexions del panell posterior:

Image: Rear panel of the DR70, showing various input and output ports including XLR, RCA, Coaxial, Optical, USB, Ethernet, and power input.

• XLR Balanced Output (L/R): For balanced audio output.
• RCA Single-Ended Output (L/R): For unbalanced audio output.
• Port d'antena Bluetooth: Connect the included Bluetooth antenna.
• Coaxial Input 1 & 2: Entrades d'àudio digitals.
• Entrada òptica: Entrada d'àudio digital.
• USB Input (Type-C): For connecting to a computer or streaming device.
• Ranura per a targetes TF: Per a la reproducció de contingut multimèdia local.
• LAN Input (Ethernet): For network streaming capabilities.
• Entrada de corrent continu: For external 9V-18V DC power supply.
• AC Power Socket (110V/220V): Connect the main power cord. Supply design requires no manual voltage selecció.
• Fusible: Power protection fuse.

Instruccions de funcionament

Display and Panel Controls:

The DR70 features a display screen and touch controls for easy operation.

• Fonts d'entrada: The DR70 supports USB Audio, Network Stream, Coaxial 1 (COAX1), Coaxial 2 (COAX2), Optical (OPT), and BT Bluetooth (BT).
• Selecció d'entrada: While on the home screen, briefly press the Settings button to enter input source selection. Use the Volume +/- buttons to navigate, then press the Settings button again to confirm and exit.
• Control de volum: When the home screen is active, press the Volume +/- buttons to adjust the DR70's volume, available in 0-100 steps.

Menú Configuració:

To access the Settings Menu, press and hold the Settings button from the home screen. Use the +/- buttons to cycle through menu items and press the Settings button to enter a submenu or confirm a selection. Press and hold the Settings button to return to the home screen.

Image: Flowchart illustrating the DR70's menu functions, including Digital Filter, DSD Direct, Display Brightness, Screensaver, Auto Standby, Language, Firmware Update, and Factory Reset.

• Filtre digital: Offers four digital filter modes: Fast (352.8K/384K), Medium (176.4K/192K), Slow (88.2K/96K), and NOS (Native Original Sampling).
• DSD Direct: ON (DSD signals are directly passthrough), OFF (DSD signals are converted to PCM for decoding).
• Brillantor de la pantalla: Three levels available: Bright, Standard, and Dim.
• Salvapantalles: ON (screen turns off after 30 seconds of inactivity), OFF (display remains on continuously).
• Espera automàtica: When enabled, the unit enters standby mode after 15 minutes if in UNLOCKED state, or when no audio is playing on USB/STREAM inputs.
• Idioma: Supports Chinese, English, and Japanese.
• Actualització del firmware: Select 'Yes' and press '+' to view steps, then any key to enter upgrade mode.
• Restabliment de fàbrica: Restores all settings to their original factory defaults.

Comandament a distància:

Image: Diagram of the DR70 remote control, detailing buttons for Standby, Input Select, Navigation, Menu, Back, Volume, and Mute.

1. Botó d'espera: In standby mode, press to wake up the DR70 and activate the display. During normal operation, press to put the DR70 into standby mode.
2. Botó de selecció d'entrada: Press to cycle through the available input sources on the DR70.
3. Four-Directional Navigation Button: Use Up/Down to navigate menu options. Use Left/Right to adjust settings. Press OK to confirm selections.
4. Botó de menú: Press to enter the main menu. Press again to exit the menu and return to the home screen.
5. Botó enrere: Returns to the home screen from any menu or submenu.
6. Botó per baixar el volum: Decreases the output volume when the DR70 is on the home screen.
7. Botó per pujar el volum: Increases the output volume when the DR70 is on the home screen.
8. Botó de silenci: Silencia o activa la sortida d'àudio.

Important Notes for Remote Control:

• Operational range may vary depending on the angle of use.
• Obstructions between the remote and the sensor may prevent proper operation.
• Remove the batteries if the remote will not be used for an extended period (one month or longer).
• If battery leakage occurs, thoroughly clean the battery compartment and install new batteries.
• This remote may accidentally operate other infrared-controlled devices when used nearby.

Instal·lació de controladors per a Windows

The DR70 is compatible with various Windows operating systems. macOS and Linux systems have built-in plug-and-play support, requiring no additional driver installation.

This driver supports Windows 7 (requires SP1 or later), Windows 8, Windows 10, and Windows 11.

Related drivers, components, and user manuals can be downloaded from the official Gustard weblloc: www.gustard.com

Descarrega del controlador: https://www.gustard.com/?page_id=8956

Descàrrega del manual d'usuari: https://www.gustard.com/?page_id=8958

Passos d'instal·lació:

1. For desktop users, use native USB 2.0 ports. Always prefer rear-panel ports (direct motherboard connection). Avoid front-panel ports as extended cable routing can degrade high-speed signaling.
2. Connect the Gustard device via USB. Power on. If no "New Hardware" prompt appears, try alternate USB ports. Power-cycle the Gustard USB interface.
3. Run `Gustard_UsbAudio_v4.82.0_setup.exe` (or later versions). Click "Yes" in the User Account Control prompt.
4. Follow on-screen instructions (click Next/Install).
5. If a red error appears stating "Setup requires that the device is...", power-cycle the Gustard USB interface and re-seat the USB cable.
6. Click Finish upon successful installation. Select YES for any additional prompts.

Foobar2000 DSD Native Setup

To enable DSD native playback in Foobar2000, follow these steps:

1. Open the folder `foo_dsd_asio`. Run `ASIOProxyInstall-0.7.2.exe`. Click Next/Install to complete the installation.
2. Launch Foobar2000. Click `File` > `Preferences`.
3. In Preferences, go to `Components`. Click `Install...` and select both `foo_input_sacd.fb2k-component` and `foo_dsd_asio.fb2k-component` from the `foo_dsd_asio` folder.
4. Click `Apply`. Confirm the pop-up to restart Foobar2000.
5. After restart, navigate to `File` > `Preferences` again.
6. Expand `Playback` > `Output` > `ASIO`. Double-click `foo_dsd_asio`.
7. In the `foo_dsd_asio v0.7.2` window:
   • ASIO Driver: Select `Gustard USB Audio`.
   • DSD Playback Method: Select `ASIO Native`.
   • Configure other settings as needed (e.g., DSD to DSD Method, PCM to DSD Method, DSD/PCM Transition).
   Click `X` to close.
8. Go to `Tools` > `SACD` > `Output Mode: DSD`. Click `OK` to complete.

Foobar2000 DSD Playback Troubleshooting

1. Why is ASIO missing under Playback > Output in Preferences?

Causa: ASIO component not installed.

• Drag `foo_input_asio.fb2k-component` from `foobar2000_DSD 0.7.X` folder into the blank area of Foobar2000's Components panel.
• Click `Apply` > Confirm restart prompt.
• ASIO appears after relaunch.

2. Why is SACD missing under Tools?

Causa: SACD component not installed.

• Drag `foo_input_sacd.fb2k-component` from `foobar2000_DSD 0.7.X` folder into the blank area.
• Click `Apply` > Confirm restart.
• SACD appears after relaunch.

3. Why does DSD playback fail with this error despite correct settings?

Causa: Version conflict between ASIOProxy and SACD decoder components.

Solució: Correct version pairing is crucial. Both must be 0.7.X series.

Problema comú: Older Foobar2000 installations using SACD component v0.6.X with ASIOProxy v0.7.2.

Opcions:

• Opció 1: Update SACD component per Solution 2 above. If components are locked:
  • Reinstall the latest official Foobar2000 release.
• Opció 2: Without reinstalling Foobar2000:
  • Install legacy driver `ASIOProxyInstall-0.6.5.exe`.
  • Search online for verified download sources.

Especificacions

Entrades digitals:

• COAX/OPT Input Support: PCM 16-24bit/44.1-192kHz; DSD DoP64
• USB/Streamer Input Support: PCM 16-32bit/44.1-768kHz; DSD DoP64-DoP256; Native DSD: DSD64-DSD512
• BT Bluetooth 5.0 Support: High-resolution codecs including LDAC, AAC, SBC, aptX, aptX LL, aptX HD.
• LDAC enables 24-bit/96kHz high-resolution transmission.
• USB Host Compatibility: Windows 7/8/10/11 (32 & 64-bit); macOS X; Linux

Sortida analògica:

• Resposta de freqüència: 20Hz-20kHz (±0.2dB, OS Mode)
• Interval dinàmic: > 111 dB
• Relació senyal/soroll (SNR): > 113 dB
• Canal Crosstalk: -125 dB a 1 kHz
• THD+N: ≤ 0.004% @ 1kHz
• IMD: ≈ 0.009% @ -2dBFS
• Nivell de sortida RCA: 2Vrms (Fixed)
• RCA Output Impedance: 100Ω
• XLR Output Level: 4Vrms (Fixed)
• Impedància de sortida XLR: 100Ω

Altres paràmetres:

• Font d'alimentació: CA 115V/230V, 50/60Hz
• Consum d'energia: <10W
• Dimensions (AxPxA): 220 × 170 × 50 mm (excluding protrusions)
• Pes net: 1.5 kg
• Dimensions del paquet: 295 × 265 × 85 mm
• Pes d'enviament: 2.0 kg

Informació de la garantia

Thank you for choosing HIFI products from the Gustard brand. To safeguard your rights and interests, please read the following warranty terms carefully. After-sales service is provided by Gustard.

Garantia del producte:

You will enjoy a 2-year free warranty and lifetime maintenance after the date of purchasing your Gustard HIFI product.

The manufacturer bears only the freight from mainland China. Part of the freight and tax generated from overseas will be solved by the user with the dealer negotiation.

Free Warranty Service:

During the free warranty period, if the user uses the product in normal conditions and the product fails due to component quality or manufacturing problems, Gustard X30 will be repaired.

Beyond the Warranty Service:

Belonging to one of the following circumstances, products are no longer provided warranty service:

1. Els productes des de la data de compra han superat un període de garantia predeterminat.
2. El model, els codis de barres i la data de compra no coincideixen amb el producte real i la targeta de garantia.
3. Without GUSTARD technician permission, unauthorized modifications to the circuit, components or self-repaired product.
4. Danys causats per forces naturals irresistibles.
5. Més enllà de l'ús permès del dany ambiental.
6. Danys per ús incorrecte o emmagatzematge inadequat. Inclou però no limitat a: el voltage és massa alta per cremar els circuits o components; Cops i danyar la closca o l'interior; perjudicials per aigua, oli, líquid i pols excessiu; oxidació o corrosió del producte, etc.
7. Beyond the warranty period, such as an individual component damage, appearance.

Due to human damage, firmware modifications lead to unable to work by unauthorized users. GUSTARD commits to take reasonable maintenance fees (except large area components or circuit board burned beyond repair). Freight and maintenance costs, material costs are required the user to bear.

Suport i Contacte

Per a més ajuda o consultes, poseu-vos en contacte amb el fabricant:

• Fabricant: Shenzhen Goshide Technology Co., LTD
• Adreça: Room 302, Building 1, No. 28, Huimin 1st Road, Guanlan Sub-district, Longhua District, Shenzhen City, Guangdong Province
• Tel: +86-18682080102
• Weblloc: http://www.gustard.com
• Correu electrònic: service@gustard.com

Official User Manual Video

Watch the official user manual video for a visual guide on setting up and operating your Gustard AUDALYTIC DR70.