Introducció
This manual provides detailed instructions for the setup, operation, and maintenance of your GUSTARD R30 Fully-Discrete R2R Network Streamer DAC. Please read this manual thoroughly before using the device to ensure optimal performance and longevity.
Llista d'embalatge
En obrir el paquet, comproveu que hi hagi tots els elements següents:
- GUSTARD R30 Mainframe
- Cable d'alimentació
- Cable USB
- Control remot
- Targeta de garantia

Tauler frontal sobreview
The front panel of the GUSTARD R30 features essential controls and a display for real-time status and operations.
- Botó d'encesa: Toggles between standby and active states. The R30 can remain in standby mode when the rear power switch is ON.
- Àrea de visualització: Shows the current input channel, encoding format, and sampling rate. Displays menu items when in the setup menu.
- Visualització de volum: Indicates the current volume level, ranging from -63.5dB to 0dB. 'FIXED' indicates bypass mode. Displays menu options during configuration.
- Botó '-': Normally decreases volume. Cycles through options in the menu.
- Botó d'engranatge: Short press switches inputs. Long press enters/exits the menu. Short press navigates items in the menu.
- Botó '+': Normally increases volume. Cycles through options in the menu.

Panell posterior acabatview
The rear panel provides various input and output connections for the GUSTARD R30.
- Entrada de rellotge: For external 10MHz clock synchronization.
- Entrada coaxial: Entrada d'àudio digital.
- Entrada AES: Entrada d'àudio digital.
- Entrada USB: Per connectar-lo a un ordinador o a una altra font d'àudio USB.
- LAN Input: For network streaming functionality.
- Lector de targetes TF: Per a actualitzacions de firmware.
- Actualitzar el firmware: Port USB per a actualitzacions de firmware.
- 220V / 110V VoltagCommutació electrònica: Selector for power voltage.
- Fusible: Fusible de potència.
- Line Out XLR Right/Left: Balanced analog audio outputs.
- Line Out RCA Right/Left: Unbalanced analog audio outputs.
- IIS Input (IIS-G): Digital audio input with Gustard pinout.
- Entrada òptica: Entrada d'àudio digital.
- Activador d'entrada/sortida: For 12V trigger control.
- Entrada d'alimentació: AC power connection.
- Interruptor d'alimentació: Interruptor d'alimentació principal.
Important: Ensure both voltagels interruptors estan configurats al mateix volumtage quan s'utilitza el voltatge de 220V/110Vtage switch, otherwise, it may damage the internal transformer upon powering on.

Controls de pantalla i panell
The R30 utilizes a large OLED display for real-time status monitoring and functional operations. The diagram below illustrates the main interface display states.
1. Pantalla OLED
The display shows the input channel, external clock indication, encoding format, sampling rate, and volume.
2. Input Channel Selection
The R30 features 7 input channels. On the main interface, each press of the Gear Button cycles through available channels in this sequence: COAX → AES → OPT → USB → STREAMER → IIS(G) → IIS(M*).
***Note: IIS(G) is for fixed Gustard pinout configuration and cannot be adjusted. IIS(M*) supports adjustable pinout configuration.
3. Ajust de volum
- When the main interface is displayed, pressing the "+" or "-" buttons directly adjusts the analog volume attenuation function of the passive preamplifier. Attenuation ranges from 0dB to -63.5dB (total 63.5dB attenuation).
- Pressing "+" at 0dB activates Fixed Output mode (bypassing attenuation circuit), displaying 'FIXED' indicator.
- When 'FIXED' is displayed, pressing "-" first exits bypass mode before controlling the attenuation level.

Menú de configuració
On the main screen, long press the Gear Button to enter the settings menu (hereinafter referred to as the menu button). In this state, the menu button can sequentially switch the menu items to be modified. "+" and "-" buttons are used to adjust the currently selected menu options. When the screen is in the settings menu, long press the menu button again to return to the main screen.
Estructura del menú:
- FILTRE PCM
- FILTRE DSD
- MODE NOS
- REF CLOCK
- IIS MODE
- FASE
- TRIGGER CH.
- TRIGGER VOL.
- VISUALITZACIÓ

Funcions del menú
Accediu al menú prement el botó Menú a la interfície principal. Cada opció del menú es detalla a continuació.
1. PCM FILTER (PCM Digital Filter Adjustment)
The R30 employs a self-developed high-performance PCM oversampling digital filter module with three filter types:
- VIVID (Default): Similar to the FAST roll-off type of traditional digital filter, but with better ringing characteristics, very small pre-ringing, and fast convergence post-ringing. It aims for a broad soundstage and sound restoration. Recommended for most music styles.
- GENTLE: Similar to the SLOW roll-off type of traditional digital filter, offering a soft listening experience.
- COMPOSIT: A hybrid digital filter, balancing characteristics between Vivid and Gentle for a good listening experience.
2. DSD FILTER (DSD Digital Filter Adjustment)
El filtre DSD té 4 opcions d'amplada de banda integrades: 47K (Default), 50K, 60K, 70K.
3. MODE NOS (Sense Overs)ampling Filter Mode)
When enabled, the PCM signal bypasses the oversampling filter entirely, decoded straight through the R-2R decoder module. This preserves micro-details and timing integrity. When enabled, there may be a slight clicking sound when the playback data format switches between PCM and DSD.
- DISABLE (Default)
- HABILITA
4. REF CLOCK (Reference Clock Selection)
The GUSTARD-K2, low-noise clock synthesizer, achieves ultra-low jitter performance. The R30 offers two clock options:
- INTERNAL (Default): Uses the built-in OCXO internal reference.
- EXT. 10MHz: Selects an external 10MHz reference source. It is recommended to connect to GUSTARD C16 or C18 reference 10M master clocks.
If the external clock is lost, powered off, or its frequency deviation is greater than +/-150ppm, "EXT ERR" will be displayed and flash.
5. IIS MODE (IIS Pinout Mode Selection)
The R30 features two IIS input interfaces:
- IIS(G): Fixed Gustard pinout protocol (non-adjustable). DSD playback requires a DSD FLAG signal from the source device.
- IIS(M*): Features adjustable pinout configuration. Its auto-detection capability for PCM and DSD encoding eliminates the need for FLAG signals.
IIS(M*) adjustable Pinout mode IIS input has four Pinouts: MODE1 (Default), MODE2, MODE3, MODE4. MODE1 is compatible with the GUSTARD mode. If you are connecting to a GUSTARD front end such as U12, U16, U18, S16, S26, etc., you can match them with MODE1, which is the former works in the Gustard output mode.
Please do not connect to the usual HDMI, this is not really HDMI.

6. PHASE (Phase Setting)
This function offers two options:
- NON-inverted (Default): When non-inverted, the RCA output of R30 is normal phase, and the XLR balanced output is American standard polarity output (1 ground, 2 hot, 3 cold).
- Invertit: When inverted, only the RCA output is reverse phase, and the XLR balanced output is Japanese/European standard polarity output (1 ground, 2 cold, 3 hot).
7. TRIGGER CH. (Linkage Trigger Start Channel Selection)
The R30 can be triggered by an external 12V linkage signal and automatically turn on from standby mode. When the 12V trigger signal ceases or drops to 0V, automatic standby activation occurs. When the R30 is working, it is switched to the input channel of this setting by the 12V trigger linkage signal.
- LAST (Default): The input channel that was in use before entering standby last time.
- Other options include COAX, AES, OPT, USB, STREAMER, IIS(G), IIS. Selecting any channel activates it upon receiving a 12V trigger signal.
8. TRIGGER VOL. (Link Trigger Boot Volume Selection)
The R30 can be powered on from standby via an external 12V trigger signal and automatically set to the selected volume level. Alternatively, during operation, a 12V trigger signal switches the output to the preset volume. This option configures the output volume after trigger activation.
- LAST (Default): The volume used before entering standby.
- FIXAT: Fixed full-scale output bypassing attenuation.
- -20 dB: Output at a volume attenuated to -20dB.
- -30 dB: Output at a volume attenuated to -30dB.
- -40 dB: Output at a volume attenuated to -40dB.
9. DISPLAY (Screen Brightness Settings)
Long-term high-brightness use of OLED screens can cause screen burn-in or ghosting. Therefore, the R30 is designed to always select automatic screen off, or manually select automatic screen off, which can also reduce interference.
- AUTO (Default): Automatically reduce brightness.
- APAGAT AUTOMÀTIC: Automatically turn off the screen.
Control Remot per Infrarojos
Quan feu servir productes DAC, premeu i manteniu premut el botó DAC durant més de 3 segons per entrar al mode de control DAC. AMPEls modes /STREAM controlen altres productes Gustard.
- En espera: Press once to activate R30 from standby. Press once during operation to enter standby.
- Menú: Press to access R30's setup menu.
- Pad amb 4 tecles de direcció: Up/Down navigates menu items. Left/Right adjusts selected options. Center press activates/deactivates mute.
- Enrere: Returns to main interface.
- Vol-: Decreases output volume on main interface.
- Vol +: Increases output volume on main interface.
Notes:
- Operational range varies with angle.
- Obstructions between remote and sensor may cause malfunction.
- Remove batteries if unused for more than 1 month.
- Thoroughly clean battery compartment if leakage occurs.
- May accidentally trigger other IR-controlled devices.

Inici ràpid del Streamer de pont de xarxa
After connecting R30's RJ45 port to your local network:
- Select the STREAMER channel and await system boot (approximately 1 minute, until "DSD 24.5MHz" appears).
- Access R30's configuration page via: http://R30.local (as shown below). Disable unused streaming protocols on the web interfície per maximitzar l'eficiència del sistema. Les actualitzacions de firmware també es realitzen aquí.
(Operació mòbil/tauleta pendent fins al llançament de l'aplicació dedicada)
You can turn off streaming protocols that are not frequently used through the web page to maximize system music playback performance. At the same time, the online upgrade of the Streamer is also operated on the web pàgina.
(Després d'iniciar l'aplicació dedicada de Streamer, les operacions anteriors es poden realitzar a l'aplicació)

Official Product Video: GUSTARD R30 - User Manual
Especificacions del producte
Digital Input Support Formats:
| Tipus | PCM | DSD (nadiu) | DSD (DoP) |
|---|---|---|---|
| USB.Streamer | 44.1kHz-768kHz 16Bit-32Bit | DSD64-DSD512 | DSD64-DSD256 |
| AES.Coaxial.Optical fiber | 44.1kHz-192kHz 16Bit-24Bit | No s'admet | DSD64 |
| IIS | 44.1kHz-1536kHz 16Bit-32Bit | DSD64-DSD1024 | DoP64-DoP512 |
Sortida analògica:
- Frequency Response: 20-20kHz/±0.2dB
- Rang dinàmic:> 123 dB
- Relació senyal-soroll:> 121 dB
- Channel Crosstalk: -139dB @ 10kHz
- THD+N: ≤ 0.00145% @1kHz
- IMD: ≈0.002% @ -1dBFS
- RCA Output Level: 2.5Vrms (VOLUME FIXED)
- RCA Output Impedance: 100Ω
- XLR Output Level: 5.1Vrms (VOLUME FIXED)
- XLR Output Impedance: 100Ω
- XLR Pinout: USA standard (1 Ground, 2 Hot, 3 Cold)
Altres especificacions:
- AC Power: 115V/230V 50/60Hz
- Consum d'energia: <35W
- Chassis Dimensions: W430 × D300 × H80 (including feet: 92mm)
- Package Dimensions: L530 × W400 × H180mm
- Shipping Weight: 10kg (with package)
- 10MHz BNC Input: Input impedance 50 Ohm, 0dBm-20dBm; CMOS square wave 0.2V-3.3V, Sine wave 0.5V-3.3V.
- Trigger: IN- 12V Typ. OUT- 12V Typ.

Condicions de garantia
Thank you for choosing GUSTARD HIFI products. To safeguard your rights and interests, please read the following warranty terms carefully. You can promptly obtain comprehensive after-sales service provided by GUSTARD.
Garantia del producte
You will enjoy a 2-year free warranty and lifetime maintenance after the date of purchasing GUSTARD's HIFI product.
* El fabricant només suporta les mercaderies de la Xina continental. Part del transport i impostos generats des de l'estranger seran resolts per l'usuari amb la negociació amb el concessionari.
Servei gratuït de garantia
GUSTARD R30 from the purchasindata g dins del període de garantia gratuïta, l'usuari utilitza el producte amb normalitat i el producte falla a causa de problemes de qualitat dels components o de fabricació.
Més enllà del servei de garantia
Belonging to one of the following circumstances, products are no longer provided warranty service:
- Els productes des de la data de compra han superat un període de garantia predeterminat.
- El model, els codis de barres i la data de compra no coincideixen amb el producte real i la targeta de garantia.
- Without GUSTARD technician permission, unauthorized modifications to the circuit, components or self-repaired product.
- Danys causats per forces naturals irresistibles.
- Més enllà de l'ús permès del dany ambiental.
- 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.
- Més enllà del període de garantia, com ara un dany en un component individual, l'aspecte degut a danys humans, les modificacions del firmware fan que usuaris no autoritzats no puguin funcionar. GUSTARD es compromet a assumir despeses de manteniment raonables (excepte components d'una gran superfície o plaques de circuit cremades sense reparar). Els costos de transport i manteniment, els costos de material han de suportar l'usuari.
Informació de contacte
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





