1. Introducció
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 Ampmés viu
2. Contingut del paquet
Si us plau, comproveu el paquet per veure si hi ha els elements següents:
- AIYIMA H4 Unit x 1
- Manual d'instruccions 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. Producte acabatview
The AIYIMA H4 features a compact design with essential controls and connectivity options.
3.1. Identificació de components
Figure 3: Labeled Diagram of AIYIMA H4 Components
- Visualització: 0.91-inch OLED screen showing current settings and audio information.
- Entrada USB tipus C: For connecting to source devices and power.
- Menu Button (Red): Used to access and navigate the device settings menu.
- Botons de volum (+/-): Adjusts the output volume. Also used for navigation in menu.
- Sortida d'auriculars balancejada de 4.4 mm: Per a connexions d'auriculars balancejades.
- Sortida d'auriculars d'un sol extrem de 3.5 mm: For standard single-ended headphone connections. This port also supports S/PDIF output.
3.2. Característiques clau
- ES9039Q2M DAC Chip: High-performance DAC for superior audio decoding.
- Àudio d'alta resolució: Supports up to 768kHz/32bit PCM and DSD512.
- Sortides dobles per a auriculars: 3.5mm single-ended and 4.4mm balanced outputs.
- Sortida potent: Balanced output delivers up to 240mW into 32Ω.
- 8 Digital Filters: Customizable PCM digital filter modes for varied sound profiles.
- 2-Stage Guany: High/Low gain settings to match different headphone impedances.
- Compacte i lleuger: Weighs approximately 22.5g for portability.
Figure 4: ES9039Q2M DAC Chip
Figure 5: Dual Headphone Output Ports
4. Configuració
The AIYIMA H4 is designed for plug-and-play compatibility with various devices.
4.1. Connecting to a Source Device
- 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 website for driver downloads if necessary.
Figure 6: Connecting H4 to a Smartphone
Figure 7: Connecting H4 to a Laptop
Figure 8: Multi-platform Compatibility
5. Instruccions de funcionament
The AIYIMA H4 offers intuitive controls for audio playback and settings adjustments.
5.1. Encendre/apagar
The device powers on automatically when connected to a USB power source. Disconnect the USB cable to power off the unit.
5.2. Control de volum
Utilitza el + i - buttons on the side of the device to adjust the volume. The H4 features a 100-step precision volume control.
5.3. Navegació i configuració del menú
Premeu el botó red Menu button to enter the settings menu. Use the + i - 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
Opcions de menú disponibles:
- Mode de guany: 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.
- Mode de filtre: 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.
- Mode de rendiment: Adjust performance settings (specific options may vary, refer to on-screen display).
- Tipus de sortida: Configure the output behavior.
- Mode S/PDIF: Enable or disable S/PDIF output via the 3.5mm port.
- Volume Control Mode: Adjust how volume is controlled.
- Mode HID: Human Interface Device mode settings.
- Brillantor de la pantalla: Ajusteu la brillantor de la pantalla OLED.
- Inversió de la pantalla: Invert the display colors.
6. Especificacions
Detailed technical specifications for the AIYIMA H4.
| Característica | Especificació |
|---|---|
| Marca | AIYIMA |
| Model | H4 |
| Xip DAC | ESS ES9039Q2M |
| Max PCM Support | 768 kHz/32 bits |
| Suport màxim de DSD | DSD512 |
| Sortides d'auriculars | 3.5 mm d'una sola punta, 4.4 mm balancejat |
| Potència de sortida equilibrada | 240 mW @ 32 Ω |
| Tipus d'interfície | USB |
| Mostra | OLED de 0.91 polzades |
| Control de volum | 100-step precision |
| Filtres digitals | 8 types (for PCM decoding only) |
| Configuració de guany | 2-stage (Alt/Baix) |
| Pes | Aprox. 22.5 g |
| País d'origen | Xina |
Figure 10: AIYIMA H4 Lightweight Design
7. Manteniment
Proper care and maintenance will ensure the longevity and performance of your AIYIMA H4.
- Neteja: Use a soft, dry, lint-free cloth to clean the device. Avoid using abrasive cleaners, solvents, or chemical sprays.
- Emmagatzematge: Store the H4 in a cool, dry place away from direct sunlight and extreme temperatures.
- Manipulació: Eviteu deixar caure el dispositiu ni sotmetre'l a impactes forts. No intenteu desmuntar ni modificar la unitat, ja que això anul·larà la garantia.
- Humitat: Mantingueu el dispositiu allunyat de l'aigua i la humitat elevada.
8. Solució De Problemes
If you encounter any issues with your AIYIMA H4, please refer to the following troubleshooting guide:
8.1. Sense sortida de so
- 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.
- Proveu d'utilitzar un cable o adaptador USB diferent.
8.2. Distorted or Poor Sound Quality
- Comproveu l'àudio 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.
- Prova amb diferents auriculars per descartar problemes amb els auriculars.
8.3. Dispositiu no reconegut per l'ordinador
- For Windows 10 and older operating systems, ensure that the necessary drivers are installed. Drivers can typically be found on the AIYIMA official weblloc.
- Try connecting the H4 to a different USB port on your computer.
- Restart your computer and reconnect the H4.
- Assegureu-vos que el cable USB no estigui danyat.
9. Garantia i Suport
The AIYIMA H4 comes with a 24 mesos de garantia des de la data de compra. Aquesta garantia cobreix defectes de fabricació i avaries en condicions d'ús normal.
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.