1. Inleiding
The AIYIMA H4 is a high-fidelity portable DAC (Digital-to-Analog Converter) and headphone amplifier designed to elevate your audio experience. It integrates a premium ES9039Q2M DAC chip, supporting high-resolution audio playback up to 768kHz/32bit PCM and DSD512. With its dual 3.5mm single-ended and 4.4mm balanced headphone outputs, the H4 delivers powerful and clear sound, capable of driving a wide range of headphones.
This manual provides essential information for setting up, operating, and maintaining your AIYIMA H4 to ensure optimal performance and longevity.
Figure 1: AIYIMA H4 Portable DAC Headphone Ampverliezer
2. Inhoud van het pakket
Controleer het pakket op de volgende items:
- AIYIMA H4 Unit x 1
- Gebruiksaanwijzing x 1
- USB Type-C to C Cable x 1
- USB A to Type-C Adapter x 1
Figure 2: AIYIMA H4 Package Contents
3. Product voorbijview
The AIYIMA H4 features a compact design with essential controls and connectivity options.
3.1. Componentidentificatie
Figure 3: Labeled Diagram of AIYIMA H4 Components
- Weergave: 0.91-inch OLED screen showing current settings and audio information.
- USB Type-C-ingang: For connecting to source devices and power.
- Menu Button (Red): Used to access and navigate the device settings menu.
- Volumeknoppen (+/-): Adjusts the output volume. Also used for navigation in menu.
- 4.4 mm gebalanceerde hoofdtelefoonuitgang: For balanced headphone connections.
- 3.5mm Single-ended Headphone Output: For standard single-ended headphone connections. This port also supports S/PDIF output.
3.2. Belangrijkste kenmerken
- ES9039Q2M DAC Chip: High-performance DAC for superior audio decoding.
- Audio met hoge resolutie: Supports up to 768kHz/32bit PCM and DSD512.
- Dubbele hoofdtelefoonuitgangen: 3.5mm single-ended and 4.4mm balanced outputs.
- Krachtige uitvoer: Balanced output delivers up to 240mW into 32Ω.
- 8 Digital Filters: Customizable PCM digital filter modes for varied sound profiles.
- 2-Stagopnieuw: High/Low gain settings to match different headphone impedances.
- Compact en lichtgewicht: Weighs approximately 22.5g for portability.
Figure 4: ES9039Q2M DAC Chip
Figure 5: Dual Headphone Output Ports
4. Instellen
The AIYIMA H4 is designed for plug-and-play compatibility with various devices.
4.1. Verbinding maken met een bronapparaat
- Identify the USB port on your source device (smartphone, tablet, computer).
- Use the provided USB Type-C to C cable or USB A to Type-C adapter to connect the AIYIMA H4 to your source device.
- The H4 will power on automatically once connected to a compatible USB power source.
- Connect your headphones to either the 3.5mm single-ended or 4.4mm balanced output port on the H4.
The H4 is compatible with macOS, iPadOS, iOS, Android, and Windows operating systems. For Windows versions prior to Windows 10, driver installation may be required. Please refer to the AIYIMA official webWebsite voor het downloaden van stuurprogramma's, indien nodig.
Figure 6: Connecting H4 to a Smartphone
Figure 7: Connecting H4 to a Laptop
Afbeelding 8: Compatibiliteit met meerdere platforms
5. Gebruiksaanwijzing
The AIYIMA H4 offers intuitive controls for audio playback and settings adjustments.
5.1. Aan/uit
The device powers on automatically when connected to a USB power source. Disconnect the USB cable to power off the unit.
5.2. Volumeregeling
Gebruik de + En - buttons on the side of the device to adjust the volume. The H4 features a 100-step precision volume control.
5.3. Menunavigatie en instellingen
Druk op de red Menu button to enter the settings menu. Use the + En - buttons to navigate through the options and change values. Press the Menu button again to confirm a selection or exit a sub-menu.
Figure 9: H4 Display and Menu Options
Beschikbare menuopties:
- Versterkingsmodus: Select between High and Low gain settings. High gain is suitable for high-impedance or low-sensitivity headphones, while Low gain is for more sensitive headphones.
- Filtermodus: Choose from 8 different PCM digital filter modes to fine-tune the sound characteristics. Note: Digital filter modes are only active during PCM decoding and do not apply to DSD decoding.
- Prestatiemodus: Adjust performance settings (specific options may vary, refer to on-screen display).
- Uitvoertype: Configure the output behavior.
- S/PDIF-modus: Enable or disable S/PDIF output via the 3.5mm port.
- Volumeregelingsmodus: Adjust how volume is controlled.
- HID-modus: Human Interface Device mode settings.
- Helderheid van het scherm: Pas de helderheid van het OLED-scherm aan.
- Inversie weergeven: Invert the display colors.
6. Specificaties
Detailed technical specifications for the AIYIMA H4.
| Functie | Specificatie |
|---|---|
| Merk | AIYIMA |
| Model | H4 |
| DAC-chip | ESS ES9039Q2M |
| Max PCM Support | 768 kHz/32 bits |
| Max DSD-ondersteuning | DSD512 |
| Hoofdtelefoonuitgangen | 3.5mm Single-ended, 4.4mm Balanced |
| Balanced Output Power | 240mW @ 32Ω |
| Interfacetype | USB |
| Weergave | 0.91-inch OLED-scherm |
| Volumeregeling | 100-step precision |
| Digitale filters | 8 types (for PCM decoding only) |
| Gain-instellingen | 2-jarentage (High/Low) |
| Gewicht | Ongeveer 22.5g |
| Land van herkomst | China |
Figure 10: AIYIMA H4 Lightweight Design
7. Onderhoud
Proper care and maintenance will ensure the longevity and performance of your AIYIMA H4.
- Schoonmaak: Use a soft, dry, lint-free cloth to clean the device. Avoid using abrasive cleaners, solvents, or chemical sprays.
- Opslag: Bewaar de H4 op een koele, droge plaats, uit de buurt van direct zonlicht en extreme temperaturen.
- Behandeling: Avoid dropping the device or subjecting it to strong impacts. Do not attempt to disassemble or modify the unit, as this will void the warranty.
- Vocht: Houd het apparaat uit de buurt van water en hoge luchtvochtigheid.
8. Probleemoplossing
If you encounter any issues with your AIYIMA H4, please refer to the following troubleshooting guide:
8.1. Geen geluidsuitvoer
- Ensure the H4 is properly connected to your source device and receiving power.
- Check that your headphones are securely plugged into the correct output port (3.5mm or 4.4mm).
- Verify the volume level on both the H4 and your source device. Increase the volume gradually.
- Confirm that the audio output settings on your source device are configured to use the AIYIMA H4 as the primary audio device.
- Probeer een andere USB-kabel of adapter.
8.2. Distorted or Poor Sound Quality
- Controleer het geluid file quality and ensure it is not corrupted.
- Experiment with different digital filter modes in the H4's menu to see if it improves sound.
- Adjust the gain setting (High/Low) to match your headphones. Using too high a gain for sensitive headphones can cause distortion.
- Ensure the volume is not set too high, which can lead to clipping and distortion.
- Test with different headphones to rule out headphone issues.
8.3. Apparaat wordt niet herkend door de computer
- For Windows 10 and older operating systems, ensure that the necessary drivers are installed. Drivers can typically be found on the AIYIMA official webplaats.
- Try connecting the H4 to a different USB port on your computer.
- Restart your computer and reconnect the H4.
- Zorg ervoor dat de USB-kabel niet beschadigd is.
9. Garantie en ondersteuning
The AIYIMA H4 comes with a 24 maanden garantie vanaf de aankoopdatum. Deze garantie dekt fabricagefouten en storingen bij normaal gebruik.
For warranty claims, technical support, or any inquiries, please contact your retailer or visit the official AIYIMA website for customer service. Please retain your proof of purchase for warranty validation.