GUSTARD X30 High Performance Audio DAC User Manual

Packaging List

• Mainframe
• Warranty card
• Power cord
• USB cable
• Remote control

Front Panel

Power Button: Switches between standby and working states. The X30 can remain in standby mode when the power switch on the rear is turned on.

Display: Shows the current input channel, encoding format, and sampling rate. When entering the menu, it displays menu items.

Volume Display: Shows volume level (-90~00dB) or FIXED for volume pass-through.

'-' Button: Used to attenuate volume or switch options in the menu interface.

Gear Button (small gear): Used for input selection switching (short press), entering/exiting menu (long press), and switching menu items (short press).

'+' Button: Used to increase volume or switch options in the menu interface.

Rear Panel

Ensure both voltage switches are set to the same voltage when operating the 220V/110V voltage switch, otherwise, it may damage the internal transformer upon powering on.

Display and Panel Operations

The X30 features a large OLED display for real-time status and function operations.

Input Channel Selection

The X30 supports 7 input channels: COAX, AES, OPT, USB, STREAMER, IIS(G), and IIS(M*). The small gear button cycles through these channels.

Note: The IIS(G) input uses GUSTARD format and cannot be adjusted. The IIS(M*) input is adjustable and can automatically detect PCM and DSD encoding.

Volume Adjustment

The '+' and '-' buttons directly adjust the analog volume attenuation from 00dB to -90dB.

Pressing the '+' button when the volume is at 00dB enters the FIXED output mode (pass-through). The volume display will show 'FIXED'.

When the volume displays 'FIXED', pressing the '-' button first exits FIXED mode and then allows volume adjustment.

Settings Menu

To enter the settings menu, long press the small gear button on the main screen. The menu button cycles through menu items, and the '+' and '-' buttons adjust the selected options. Long press the menu button again to return to the main screen.

Menu Directory Tree:

1. PCM FILTER (PCM Digital Filter Adjustment): Options: VIVID, GENTLE, COMPOSITE.
2. DSD FILTER (DSD Digital Filter Adjustment): Options: 47K, 50K, 60K, 70K.
3. NOS MODE (No Oversampling Filter Mode): Options: DISABLE, ENABLE.
4. REF CLOCK (Reference Clock Selection): Options: INTERNAL (built-in OCXO), EXT. 10Mhz (external 10M reference source). Connection to GUSTARD C16 or C18 is recommended.
5. IIS MODE (IIS Pinout Mode Selection): Options: MODE1 (GUSTARD), MODE2, MODE3, MODE4.
6. PHASE (Phase Setting): Options: NON-inverted (RCA normal phase output, XLR American standard), Inverted (RCA inverse phase output, XLR Japan/European standard).
7. TRIGGER CH. (Linkage trigger start channel selection): Options: LAST (input channel used before standby), COAX, AES, OPT, USB, STREAMER, IIS(G), IIS. Triggered by a 12V linkage signal.
8. TRIGGER VOL. (Link Trigger Boot Volume Selection): Options: LAST (volume used before standby), FIXED (full volume), -20dB, -30dB, -40dB.
9. DISPLAY (Screen Brightness Settings): Options: AUTO (automatically reduce brightness), AUTO OFF ALL (automatically turn off the screen), AUTO OFF DISPLAY (automatically turn off the screen display).

Menu Functions Explained

1. PCM FILTER (PCM Digital Filter Adjustment)

The X30 features a self-developed DSP PCM digital filter with 3 types:

• VIVID: Similar to FAST roll-off, offers small pre-ringing, fast convergence, accurate details, and soundstage. Recommended for most music styles.
• GENTLE: Similar to SLOW roll-off, provides a soft listening experience.
• COMPOSITE: A hybrid digital filter, offering a good listening experience.

2. DSD FILTER (DSD Digital Filter Adjustment)

The DSD filter has 4 built-in bandwidth options: 47K, 50K, 60K, 70K.

3. NOS MODE (No Oversampling Filter Mode)

When enabled, the PCM signal bypasses the oversampling filter and goes directly to the ES9039SPRO. The internal PCM oversampling digital filter is also turned off.

Note: When enabled, there may be a slight clicking sound when the playback data format switches between PCM and DSD.

4. REF CLOCK (Reference Clock Selection)

Utilizes the GUSTARD-K2 low-noise clock synthesizer for ultra-low jitter performance. Options are INTERNAL (using the built-in OCXO) or EXT. 10Mhz (selecting an external 10M reference source). It is recommended to connect to a GUSTARD C16 or C18 reference 10M master.

When using the external clock (EXT. 10Mhz), the main screen will display 'EXT' when locked. If the external clock is lost or has a frequency deviation greater than +-150ppm, 'EXT ERR' will be displayed and flash.

5. IIS MODE (IIS Pinout Mode Selection)

The X30 has 2 IIS inputs:

• IIS(G): GUSTARD pinout, cannot be adjusted. Requires a DSD FLAG from the front end when playing DSD.
• IIS(M*): Adjustable Pinout mode, automatically detects PCM and DSD encoding, eliminating the need for a DSD FLAG signal.

The pinout for IIS(G) (GUSTARD MODE) and other modes (MODE1-MODE4) are described below. MODE1 is compatible with GUSTARD front ends like U12, U16, U18, S16, S26.

6. PHASE (Phase Setting)

This function has two options:

• NON-inverted: RCA normal phase output, XLR American standard (1 ground, 2 hot, 3 cold).
• Inverted: RCA inverse phase output, XLR Japan/European standard (1 ground, 2 cold, 3 hot).

7. TRIGGER CH. (Linkage trigger start channel selection)

The X30 can be triggered by an external 12V linkage signal to turn on from standby mode. When working, it switches to the input channel set here by the 12V trigger signal. If the trigger signal stops or drops to 0V, it enters standby.

Options: LAST (input channel used before standby), COAX, AES, OPT, USB, STREAMER, IIS(G), IIS. When the 12V trigger signal is received, it will enter the selected channel and turn on the X30.

8. TRIGGER VOL. (Link Trigger Boot Volume Selection)

Sets the output volume when the X30 is triggered on. Options include:

• LAST: The volume used before entering standby last time.
• FIXED: Output at fixed full volume.
• -20dB: Output at a volume attenuated to -20dB.
• -30dB: Output at a volume attenuated to -30dB.
• -40dB: Output at a volume attenuated to -40dB.

9. DISPLAY (Screen Brightness Settings)

Options for screen brightness management:

• AUTO: Automatically reduce brightness.
• AUTO OFF ALL: Automatically turn off the screen.
• AUTO OFF DISPLAY: Automatically turn off the screen display.

Long-term high-brightness use of OLED screens can cause burn-in or ghosting, hence these features are designed to prolong screen life.

Infrared Remote Control

Notes: Pay attention to distance and angle. Obstacles may affect performance. Remove the battery if the remote is not used for over a month. Clean battery contacts if leaks occur. The remote may not work properly with other devices.

Operation Introduction of Streamer

After connecting the X30's RJ45 port to your LAN, select the Streamer channel and wait for the system to boot up (approximately one minute, until the screen displays DSD 24.5Mhz).

In a browser on a PC, MAC, tablet, or iPhone on the local area network, enter: http://x30.local

This will open the settings page for the X30 bridge. You can turn off infrequently used streaming protocols through the web page to maximize system music playback performance. Online upgrades for the Streamer are also managed via the web page. Alternatively, operations can be performed through the dedicated Streamer APP once launched.

Product Specifications

Digital Input Support Formats

• COAX/AES/OPT: PCM 16-24bit/44.1-192kHz; DOP64
• USB: PCM 16-32bit/44.1-768kHz; DSD DOP64-DOP256; NATIVE DSD: DSD64-DSD512
• STREAMER: PCM 16-32bit/44.1-768kHz; DSD DOP64-DOP256; NATIVE DSD: DSD64-DSD512 (The STREAMER protocol can be set on/off and upgraded online)
• IIS(G): PCM 16-32bit/44.1-768kHz; DSD DOP64-DOP256; NATIVE DSD: DSD64-DSD512
• IIS(MODE1-MODE4): PCM 16-32bit/44.1-768kHz; DSD DOP64-DOP256; NATIVE DSD: DSD64-DSD512 (PCM/DSD encoding automatic detection)

USB Input OS Support

WIN7-WIN11 (32/64bit), UP, Mac OSX, iOS, Linux, Android OTG.

10Mhz BNC Input

Impedance: 50 Ohm. Level: 0dBm-20dBm. CMOS voltage: Square wave: 0.2V-3.3V, Sine wave: 0.5-3.3V.

Trigger

IN: 12V Typ., OUT: 12V Typ.

Analog Output

• Frequency response: 20-20kHz /+-0.2dB @VIVID setting
• Dynamic Range: > 130dB (20K BW Awt.)
• Signal-to-Noise Ratio: > 129dB (20K BW Awt.)
• Crosstalk: -139dB @ 10kHz
• THD+N: < 0.0002% @ 1kHz
• IMD: ≈ 0.001% @ -1dBfs
• RCA level: 2.5Vrms (VOLUME FIXED)
• RCA output Impedance: 100Ω
• XLR level: 5.1Vrms (VOLUME FIXED)
• XLR output Impedance: 100Ω
• XLR definition: US standard (1 ground, 2 hot, 3 cold) @Non-Inverted Phase setting

Others

• Power Supply: AC 115V/230V 50/60Hz
• Power Consumption: < 43W
• Size: L430mm * W300mm * H80mm (With machine feet 92mm)
• Packing size: L530mm * W400mm * H180mm
• Weight: 10Kg (with package)

After-sales Service

Thank you for choosing GUSTARD HIFI products. Please read the following warranty terms carefully to ensure prompt after-sales service.

Product Warranty

Enjoy a 2-year free warranty and lifetime maintenance from the date of purchase.

The manufacturer covers freight from Chinese mainland. Overseas freight and tax will be negotiated between the user and the dealer.

Free Warranty Service

For the GUSTARD X30, during the free warranty period, if the product fails due to component quality or manufacturing problems under normal use, it is covered by free warranty service.

Beyond the Warranty Service

Products are no longer provided warranty service under the following circumstances:

• a. Products purchased beyond a predetermined warranty period.
• b. Model, barcodes, and purchase date do not match the actual product and warranty card.
• c. Unauthorized modifications to the circuit, components, or self-repaired products without GUSTARD technician permission.
• d. Damage caused by irresistible natural forces.
• e. Damage from environmental conditions beyond permitted use.
• f. Damage due to incorrect use or improper storage, including but not limited to: excessive voltage causing circuit/component burnout; physical impact damaging the shell or internal parts; damage from water, oil, liquid, excessive dust; product oxidation or corrosion.
• g. Damage beyond the warranty period, such as individual component damage, appearance damage due to human factors, or firmware modifications leading to inability to work by unauthorized users. GUSTARD will provide reasonable maintenance services (excluding major component or circuit board damage beyond repair), but the user will bear freight, maintenance, and material costs.

Manufacturer Information

Manufacturer: Shenzhen Goshide Technology Co., LTD

Address: Room 302, Building 1, No. 28, Huimin 1st Road, Guanlan Sub-district, Longhua District, Shenzhen City, Guangdong Province

Tel: +86-18682080102

Website: http://www.gustard.com

Email: service@gustard.com