FiiO X3-II High Resolution Music Player (2nd Generation)

1. Introduction

The FiiO X3-II (2nd Generation) is a portable high-resolution audio player and USB-DAC designed for audio enthusiasts. It features an audiophile-grade architecture with premium components, capable of playing audio files up to 24-bit/192 kHz. Supported formats include native DSD, WAV, WMA, ALAC, FLAC, APE, and AIFF. The device incorporates a Cirrus Logic CS4398 DAC and finely tuned low-pass filters to ensure extremely low noise and phase distortion. Tantalum capacitors in the analog circuit minimize internal resistance for uncolored sound, and dual crystal oscillators provide precise playback at any sample rate, reducing conversion artifacts.

Figure 1: Front view of the FiiO X3-II High Resolution Music Player.

2. Setup

2.1. Charging the Device

Before initial use, fully charge your FiiO X3-II. Connect the device to a USB power source (e.g., computer USB port or a USB wall adapter) using the provided Micro-USB cable. The charging indicator will show the charging status.

2.2. Inserting a MicroSD Card

The FiiO X3-II supports MicroSD cards up to 128 GB for storing your music. Locate the MicroSD card slot on the side of the device. Gently insert the MicroSD card into the slot until it clicks into place. Ensure the card is inserted correctly to avoid damage.

Figure 2: Side view of the FiiO X3-II, highlighting the MicroSD card slot and Micro-USB port.

2.3. Loading Music Files

To transfer music files, connect the FiiO X3-II to your computer using the Micro-USB cable. The device will appear as a removable storage device. Drag and drop your audio files into the MicroSD card folder. The player supports various high-resolution formats including DSD, WAV, WMA, ALAC, FLAC, APE, and AIFF.

3. Operating Instructions

3.1. Power On/Off

Press and hold the Power button located on the side of the device to turn it on or off.

Figure 3: Side view of the FiiO X3-II, showing the power and volume buttons.

3.2. Basic Controls

The FiiO X3-II features a classic click wheel and dedicated buttons for navigation and playback:

• Click Wheel: Rotate to scroll through menus and lists.
• Center Button: Press to select an item or play/pause music.
• Menu Button: Access the main menu or go back one level.
• Back Button: Return to the previous screen.
• Volume Buttons: Adjust the playback volume.
• Skip/Fast Forward/Rewind Buttons: Navigate between tracks or fast forward/rewind within a track.

3.3. Navigating the User Interface

The device features a 2-inch LCD screen with an updated user interface. Use the click wheel and buttons to navigate through your music library, settings, and other functions.

3.4. USB-DAC Functionality

The FiiO X3-II can function as a USB Digital-to-Analog Converter (DAC) when connected to a computer. This allows your computer to utilize the player's high-quality audio processing for improved sound output.

4. Key Features

• New Digital Audio Architecture: Supports native DSD playback for high-fidelity audio.
• Dual Crystal Oscillators: Dedicated to 44.1kHz and 48kHz frequency multiples, ensuring lowest jitter across all sample rates.
• Audiophile-Grade Components: Features a Cirrus Logic CS4398 DAC for superior sound quality.
• Updated Design: All-metal chassis with a fine-grained matte finish for durability and aesthetics.
• Enhanced User Interface: A new user interface design displayed on a high-quality 2-inch LCD screen for intuitive navigation.

5. Maintenance

To ensure the longevity and optimal performance of your FiiO X3-II, follow these maintenance guidelines:

• Keep the device clean using a soft, dry cloth. Avoid abrasive materials or harsh chemicals.
• Protect the screen from scratches by using a screen protector.
• Avoid exposing the device to extreme temperatures, direct sunlight, or high humidity.
• Store the device in a cool, dry place when not in use.
• Handle the MicroSD card and ports with care to prevent damage.

6. Troubleshooting

If you encounter issues with your FiiO X3-II, consider the following steps:

• Device not powering on: Ensure the battery is charged. Connect to a power source and try again.
• No sound: Check headphone connections, volume level, and ensure the audio file is not corrupted.
• Music not playing: Verify that music files are correctly loaded onto the MicroSD card and are in a supported format.
• Device unresponsive: Perform a soft reset by pressing and holding the Power button for an extended period (e.g., 10-15 seconds) until the device restarts.
• Firmware updates: Check the official FiiO website for the latest firmware updates and installation instructions to resolve potential software-related issues and improve performance.

7. Specifications

8. Warranty and Support

For warranty information and technical support, please refer to the official FiiO website or contact their customer service directly. Keep your proof of purchase for warranty claims.