1. Introduction
The MUSEHIFI M3 II is a high-fidelity portable audio device designed to elevate your listening experience. Combining a powerful DAC (Digital-to-Analog Converter) and a headphone amplifier, it delivers exceptional sound quality for music enthusiasts and gamers alike. Featuring dual CS43131 DAC chips, MUSE SPACE technology, and versatile output options, the M3 II is engineered for clarity, power, and immersive audio.
2. Package Contents
Please check the box for the following items:
- MUSEHIFI M3 II Portable HiFi Player Unit
- USB Type-C to Type-C Cable
- USB Type-C to Lightning Cable
- USB Type-C to USB-A Adapter
- User Manual (this document)
3. Specifications
| Feature | Specification |
|---|---|
| Brand | MUSEHIFI (NICEHCK) |
| Model Number | M3 II |
| DAC Chip | Dual CS43131 |
| Output Interface | 3.5mm single-ended / 4.4mm balanced |
| Input Interface | Type-C USB |
| Decoding Specification | Max PCM-32bit/384KHz DSD256 |
| THD+N | -103dB@4.4mm/4Vrms, -100dB@3.5mm/2Vrms |
| Signal-to-noise ratio (SNR) | 130dB@4.4mm/4Vrms, 125dB@3.5mm/2Vrms |
| Operation Mode | Touch Tone (Volume up/down, Pause/High Gain mode) |
| Dimensions (WxHxD) | 59.5*29.5*15.5mm |
| Weight | ≈50g |
| Body Material | Metal |
| Screen | No |
| External Memory | No |
| WIFI | No |
| Bluetooth | No |
| Audio Format Support | MP3, WAV |
| Features | One key to open high gain mode, support game surround stereo sound (Esports Mode), MUSE SPACE amplification |
4. Setup Guide
The MUSEHIFI M3 II is designed for drive-free use across various platforms, ensuring a seamless plug-and-play experience.
4.1 Connecting to Your Device
- Identify your device's port: The M3 II is compatible with Android, iOS, Windows, and Mac devices.
- Select the appropriate cable: Use the provided USB Type-C to Type-C cable for Android/Windows/Mac devices with a Type-C port. For iOS devices, use the USB Type-C to Lightning cable. If your computer only has USB-A ports, use the USB Type-C to USB-A adapter with the Type-C to Type-C cable.
- Connect the M3 II: Plug the Type-C end of the cable into the M3 II's input interface.
- Connect to your source device: Plug the other end of the cable into your smartphone, tablet, or computer.
- Power On: The M3 II will automatically power on when connected to a compatible device. The LED indicator will light up white, indicating a successful connection.
4.2 Connecting Headphones
- Choose your output: The M3 II offers both a 3.5mm single-ended output and a 4.4mm balanced output. Select the port that matches your headphones.
- Plug in your headphones: Insert your headphone jack firmly into the chosen output port on the M3 II.
5. Operating Instructions
The M3 II features intuitive touch-tone controls and LED indicators for easy operation.
5.1 Button Functions
- Volume Up (+): Increases the audio volume.
- Volume Down (-): Decreases the audio volume.
- Pause/Play: A single press of the central button (between + and -) will pause or play the audio.
- High Gain Mode: A long press of the central button will toggle the high gain mode.
5.2 LED Indicator Lights
- White Light: Indicates the M3 II is connected to a device and operating normally.
- Green Light: Indicates that the M3 II has automatically recognized and entered DSD exclusive mode.
- Red Light: Indicates that the high gain mode is currently enabled.
6. Features Overview
6.1 MUSE SPACE Amplification
The M3 II incorporates MUSE SPACE technology, adding two SIP amplification modules to the system. This feature can be manually activated to amplify the sound engine, providing stronger output and drive for a more robust audio experience.
6.2 Dual CS43131 DAC Chips
Equipped with two CS43131 decoding chips, the M3 II independently decodes the left and right audio channels. This design supports fully balanced four-channel decoding, significantly reducing interference between channels and resulting in a more transparent and pure sound.
6.3 High Gain Mode
The M3 II features a one-key high gain mode. When activated, it enters a high analysis lossless state, making the audio more transparent and restoring intricate details. This mode is particularly beneficial for driving high-impedance headphones or for users who prefer a more dynamic sound.
6.4 Esports Mode
Designed for gamers, the Esports Mode automatically activates when the device detects a game state. It creates a surrounding three-dimensional space, enhancing the perception of in-game sounds such as bullet shots, footsteps, and skill releases, providing a competitive edge and immersive experience.
6.5 TOREX Power Management System
The M3 II integrates a powerful TOREX power management system. This system ensures low power consumption, preventing heat buildup even during extended use, thereby prolonging the lifespan and stable performance of the equipment.
6.6 Low Noise and Distortion
On the basis of the dual CS43131 DACs, the M3 II incorporates several low noise LDOs (Low-Dropout Regulators) and a high-precision femtosecond crystal oscillator. This advanced design minimizes distortion and achieves a high Signal-to-Noise Ratio (SNR) within a large dynamic range, resulting in impeccable sound quality.
6.7 High Quality OTG Wire
The included OTG (On-The-Go) wire is constructed from single crystal copper mixed with single crystal copper silver plating. Its digital signal transmission line and power supply wire feature a copper silver plated shielding layer for independent shielding, ensuring powerful anti-interference ability and more accurate, efficient data transmission.
7. Maintenance
- Cleaning: Use a soft, dry cloth to clean the device. Avoid using harsh chemicals or abrasive materials.
- Storage: Store the M3 II in a cool, dry place away from direct sunlight and extreme temperatures.
- Handling: Handle the device with care. Avoid dropping it or exposing it to excessive force.
- Ports: Keep the input and output ports free from dust and debris.
8. Troubleshooting
- No Sound:
- Ensure the M3 II is properly connected to both your source device and headphones.
- Check the volume level on both the M3 II and your source device.
- Verify that your source device is playing audio.
- Try a different pair of headphones or a different cable to rule out accessory issues.
- Distorted Sound:
- Ensure the audio source is of good quality.
- If High Gain mode is active, try disabling it, especially with sensitive headphones.
- Check for loose connections.
- Device Not Recognized:
- Ensure the USB cable is securely connected to both the M3 II and your source device.
- Try connecting to a different USB port on your computer or a different source device.
- Restart your source device.
- Ensure you are using the correct cable for your device (Type-C to Type-C, or Type-C to Lightning).
- LED Indicator Not Lighting Up:
- Ensure the M3 II is properly connected to a powered source device.
- Check the cable for damage.
9. User Tips
- The MUSEHIFI M3 II can be categorized as both a portable music player accessory and an audiophile-grade DAC/AMP.
- Its compact size and durable metal body make it ideal for on-the-go use.
- While it does not have a screen or external memory, its primary function is to enhance the audio output from your existing devices.
- Experiment with the High Gain mode to find the optimal sound level and clarity for your specific headphones and music.
10. Warranty and Support
Each MUSEHIFI M3 II product is strictly controlled and produced by MUSE Acoustics. It includes MUSE Acoustics' dedicated research and development and professional after-sales service. The official promise is a 1-year warranty from the date of purchase.
For technical support, warranty claims, or further assistance, please contact your retailer or visit the official MUSEHIFI/NICEHCK support channels.
