1. Introducere
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 Ampmai în viață
2. Conținutul pachetului
Vă rugăm să verificați pachetul pentru următoarele articole:
- AIYIMA H4 Unit x 1
- Manual de instrucțiuni 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. Produs terminatview
The AIYIMA H4 features a compact design with essential controls and connectivity options.
3.1. Identificarea componentelor
Figure 3: Labeled Diagram of AIYIMA H4 Components
- Afişa: 0.91-inch OLED screen showing current settings and audio information.
- Intrare USB tip C: For connecting to source devices and power.
- Menu Button (Red): Used to access and navigate the device settings menu.
- Butoane de volum (+/-): Adjusts the output volume. Also used for navigation in menu.
- Ieșire căști echilibrată de 4.4 mm: Pentru conexiuni echilibrate pentru căști.
- 3.5mm Single-ended Headphone Output: For standard single-ended headphone connections. This port also supports S/PDIF output.
3.2. Caracteristici cheie
- ES9039Q2M DAC Chip: High-performance DAC for superior audio decoding.
- Audio de înaltă rezoluție: Supports up to 768kHz/32bit PCM and DSD512.
- Ieșiri duble pentru căști: 3.5mm single-ended and 4.4mm balanced outputs.
- Ieșire puternică: Balanced output delivers up to 240mW into 32Ω.
- 8 Digital Filters: Customizable PCM digital filter modes for varied sound profiles.
- 2-Stage Câștig: High/Low gain settings to match different headphone impedances.
- Compact și ușor: Weighs approximately 22.5g for portability.
Figure 4: ES9039Q2M DAC Chip
Figure 5: Dual Headphone Output Ports
4. Configurare
The AIYIMA H4 is designed for plug-and-play compatibility with various devices.
4.1. Conectarea la un dispozitiv sursă
- 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 pentru descărcări de drivere, dacă este necesar.
Figure 6: Connecting H4 to a Smartphone
Figure 7: Connecting H4 to a Laptop
Figura 8: Compatibilitate multi-platformă
5. Instrucțiuni de utilizare
The AIYIMA H4 offers intuitive controls for audio playback and settings adjustments.
5.1. Pornire/Oprire
The device powers on automatically when connected to a USB power source. Disconnect the USB cable to power off the unit.
5.2. Controlul volumului
Utilizați + şi - buttons on the side of the device to adjust the volume. The H4 features a 100-step precision volume control.
5.3. Navigare în meniu și setări
Apăsați tasta red Menu button to enter the settings menu. Use the + şi - 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
Opțiuni de meniu disponibile:
- Modul câștig: 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.
- Mod filtrare: 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.
- Modul de performanță: Adjust performance settings (specific options may vary, refer to on-screen display).
- Tip ieșire: Configure the output behavior.
- Mod S/PDIF: Enable or disable S/PDIF output via the 3.5mm port.
- Volume Control Mode: Adjust how volume is controlled.
- Modul HID: Human Interface Device mode settings.
- Luminozitatea afișajului: Reglați luminozitatea afișajului OLED.
- Inversarea afișajului: Invert the display colors.
6. Specificații
Detailed technical specifications for the AIYIMA H4.
| Caracteristică | Caietul de sarcini |
|---|---|
| Marca | AIYIMA |
| Model | H4 |
| Chip DAC | ESS ES9039Q2M |
| Max PCM Support | 768 kHz/32 biți |
| Max DSD Support | DSD512 |
| Ieșiri pentru căști | 3.5 mm cu un singur capăt, 4.4 mm echilibrat |
| Balanced Output Power | 240mW @ 32Ω |
| Tip de interfață | USB |
| Afişa | OLED de 0.91 inchi |
| Controlul volumului | 100-step precision |
| Filtre digitale | 8 types (for PCM decoding only) |
| Obține setări | 2-stage (High/Low) |
| Greutate | Aproximativ. 22.5 g |
| Țara de origine | China |
Figure 10: AIYIMA H4 Lightweight Design
7. Întreținere
Proper care and maintenance will ensure the longevity and performance of your AIYIMA H4.
- curatenie: Use a soft, dry, lint-free cloth to clean the device. Avoid using abrasive cleaners, solvents, or chemical sprays.
- Depozitare: Store the H4 in a cool, dry place away from direct sunlight and extreme temperatures.
- Manipulare: Evitați să scăpați dispozitivul sau să îl supuneți la impacturi puternice. Nu încercați să dezasamblați sau să modificați unitatea, deoarece acest lucru va anula garanția.
- Umiditate: Țineți aparatul departe de apă și umiditate ridicată.
8. Depanare
If you encounter any issues with your AIYIMA H4, please refer to the following troubleshooting guide:
8.1. Fără ieșire audio
- 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.
- Încercați să utilizați un alt cablu sau adaptor USB.
8.2. Distorted or Poor Sound Quality
- Verificați sunetul 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. Device Not Recognized by Computer
- For Windows 10 and older operating systems, ensure that the necessary drivers are installed. Drivers can typically be found on the AIYIMA official website-ul.
- Try connecting the H4 to a different USB port on your computer.
- Restart your computer and reconnect the H4.
- Asigurați-vă că nu este deteriorat cablul USB.
9. Garanție și asistență
The AIYIMA H4 comes with a 24 luni garantie de la data achiziției. Această garanție acoperă defectele de fabricație și defecțiunile în condiții normale de utilizare.
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.