1. Introduction
Thank you for choosing the MYPIN Headphone Amplifier HA.0290-HA0030. This device is designed to enhance your audio experience by providing powerful amplification for a wide range of headphones, featuring both 3.5mm AUX and Type-C inputs, a bass boost function, and a two-stage gain switch. Please read this manual carefully to ensure proper usage and optimal performance.
Image 1.1: MYPIN Headphone Amplifier and included cables.
2. Product Features
- Wide Headphone Impedance Support: Supports headphones with impedance ranging from 16Ω to 600Ω, ensuring compatibility with various high-performance or low-sensitivity headphones.
- Dual Input Versatility: Equipped with both 3.5mm AUX and USB Type-C inputs for flexible connectivity with a wide array of digital devices.
- High Fidelity Audio: Achieves a Signal-to-Noise Ratio (SNR) greater than 100dB and Total Harmonic Distortion plus Noise (THD+N) of 0.0003% for clear, distortion-free stereo sound.
- Two-stage Gain Switch: Allows adjustment of signal input for optimal headphone performance, catering to different headphone sensitivities.
- Bass Boost Function: Provides a dedicated bass switch for enhanced and mellow bass performance, enriching your music experience.
- Integrated Volume Control: Features a volume knob that also functions as an on/off switch for convenient operation.
- Long-lasting Battery: Built-in 3000mAh rechargeable lithium battery offers 10-15 hours of continuous working time.
- Durable and Portable Design: Compact, lightweight, and constructed with an aluminum alloy casing to reduce signal interference and enhance heat resistance.
3. Package Contents
Please check the package for the following items:
- MYPIN Headphone Amplifier
- USB Type-C Cable
- 3.5mm Audio Cable
- User Manual (this document)
Image 3.1: Contents of the MYPIN Headphone Amplifier package.
4. Device Layout and Controls
Image 4.1: Front and rear views of the amplifier with labeled controls.
- Gain Switch (H/L): Located on the rear. 'H' (High) for high impedance headphones or when more power is needed. 'L' (Low) for low impedance headphones or normal listening.
- Type-C Input (USB DV 5V): Located on the rear. Used for digital audio input and charging the device.
- Power Indicator: A small LED light on both front and rear panels, indicating power status and charging.
- 3.5mm Jack Output: Located on the front. Connect your headphones here.
- Bass Switch (OFF/ON): Located on the front. Toggles the bass boost function.
- Power/Volume Knob: Located on the front. Rotate to adjust volume. Press and hold to turn the device ON/OFF.
- Audio Input (3.5mm AUX): Located on the front. Connect analog audio sources here using the 3.5mm audio cable.
5. Setup
5.1 Initial Charging
- Connect the provided USB Type-C cable to the Type-C input port on the amplifier.
- Connect the other end of the USB cable to a 5V USB power source (e.g., wall adapter, computer USB port).
- The power indicator light will illuminate during charging. Allow the device to fully charge before first use (approximately 3-4 hours).
5.2 Connecting Audio Sources
The amplifier supports two types of audio input:
A. 3.5mm AUX Input (Analog)
- Connect one end of the 3.5mm audio cable to the Audio Input port on the amplifier.
- Connect the other end of the 3.5mm audio cable to the audio output jack of your device (e.g., MP3 player, phone, PS4 controller).
Image 5.1: Connecting an audio source via 3.5mm AUX input.
B. Type-C Input (Digital)
- Connect the provided USB Type-C cable to the Type-C Input port on the amplifier.
- Connect the other end of the USB Type-C cable to the Type-C port of your digital device (e.g., MacBook, compatible mobile phone, computer). The amplifier will function as an external DAC (Digital-to-Analog Converter) in this mode.
Image 5.2: Connecting an audio source via Type-C input.
5.3 Connecting Headphones
- Plug your headphones into the 3.5mm Jack Output port on the front of the amplifier.
6. Operating Instructions
6.1 Power On/Off and Volume Control
- To turn ON the amplifier, rotate the Power/Volume knob clockwise until you hear a click and the power indicator light illuminates.
- To turn OFF the amplifier, rotate the Power/Volume knob counter-clockwise until you hear a click and the power indicator light turns off.
- Adjust the listening volume by rotating the Power/Volume knob.
6.2 Using the Gain Switch
The Gain switch (H/L) on the rear panel allows you to adjust the amplification level:
- Set to 'L' (Low Gain) for most standard headphones and general listening.
- Set to 'H' (High Gain) for high impedance headphones (e.g., 250Ω, 300Ω, 600Ω) or when your headphones require more power to achieve desired volume and dynamics.
6.3 Activating Bass Boost
The Bass switch (OFF/ON) on the front panel allows you to enhance the low-frequency response:
- Set to 'ON' to activate the bass boost for a more pronounced and mellow bass sound.
- Set to 'OFF' for a neutral audio profile.
Image 6.1: Gain and Bass switches for audio customization.
7. Battery and Charging
The MYPIN Headphone Amplifier is equipped with a built-in 3000mAh rechargeable lithium battery, providing approximately 10-15 hours of continuous playback on a full charge.
- Charging: Use the provided USB Type-C cable to connect the amplifier to a 5V USB power source. The power indicator light will show charging status.
- Battery Life: Actual battery life may vary based on volume level, headphone impedance, and features used (e.g., bass boost).
- Low Battery: When the battery is low, the power indicator may flash or turn off. Recharge the device promptly.
Image 7.1: Battery capacity and estimated working time.
8. Device Compatibility
The amplifier is compatible with a wide range of devices and headphones:
- Audio Sources: MP3 players, MP4 players, smartphones, iPads, Mac computers, personal computers, notebooks, Xbox One, PS4, and PS5 controllers.
- Headphones: Supports headphones with impedance from 16Ω to 600Ω.
Image 8.1: The amplifier enhances audio for various devices and headphones.
9. Specifications
| Feature | Specification |
|---|---|
| Model Name | HA.0290-HA0030 |
| Brand | MYPIN |
| Headphones Jack | 3.5 mm Jack |
| Connectivity Technology | Wired (3.5mm AUX, Type-C) |
| Impedance Support | 16 - 600 Ohms |
| Signal-to-Noise Ratio (SNR) | >100dB |
| Total Harmonic Distortion + Noise (THD+N) | 0.0003% |
| Battery Capacity | 3000mAh Lithium Ion |
| Battery Life | 10-15 Hours |
| Material | Aluminum |
| Item Weight | 8.1 ounces (0.23 Kilograms) |
| Package Dimensions | 6.97 x 5.47 x 0.94 inches |
| Color | Black |
Image 9.1: Physical dimensions of the amplifier.
10. Maintenance
- Cleaning: Use a soft, dry cloth to clean the amplifier's surface. Avoid using harsh chemicals or abrasive materials.
- Storage: Store the device in a cool, dry place away from direct sunlight and extreme temperatures.
- Handling: Handle the amplifier with care. Avoid dropping it or subjecting it to strong impacts.
- Connections: Ensure all cables are connected firmly but do not force them. Periodically check cables for wear and tear.
11. Troubleshooting
- No Sound:
- Ensure the amplifier is turned ON and the volume knob is adjusted.
- Check that headphones are securely plugged into the 3.5mm output jack.
- Verify that the audio source is playing and its volume is not muted or too low.
- If using 3.5mm AUX input, ensure the cable is fully inserted into both the amplifier and the source device.
- If using Type-C input, ensure your device recognizes the amplifier as an audio output device.
- Distorted Sound / Noise:
- Reduce the volume on both the amplifier and the audio source.
- Ensure the gain switch (H/L) is set appropriately for your headphones.
- Avoid using the 3.5mm AUX input simultaneously with charging, as this may introduce noise.
- Test with different audio cables and headphones to rule out faulty accessories.
- Device Not Turning On / Not Charging:
- Ensure the battery is not completely drained. If fully discharged, it may take a few minutes of charging before the power indicator lights up.
- Try a different USB Type-C cable and a different 5V USB power source.
- Ensure the Power/Volume knob is rotated past the 'OFF' click position.
12. Warranty and Support
MYPIN products are designed for reliability and performance. For specific warranty details and support, please refer to the warranty information provided at the time of purchase or contact MYPIN customer service. Keep your purchase receipt as proof of purchase for warranty claims.
13. Official Product Video
For a visual guide on the MYPIN Headphone Amplifier, please watch the official product video below:
Video 13.1: MYPIN Headphone Amplifier with Bass Boost overview. This video demonstrates the key features and functionality of the amplifier.
