Introducció
This manual provides detailed instructions for the installation, operation, and maintenance of your MEKEDE 4470A Car DSP Box Power Amplifier. Please read this manual thoroughly before using the product to ensure proper function and to maximize your audio experience. The MEKEDE 4470A is designed to be compatible with most Android radios, enhancing your in-car audio system.

Figure 1: MEKEDE 4470A Car DSP Box Power Ampmés viu
Especificacions
The MEKEDE 4470A is a compact and powerful DSP amplifier designed to enhance your car's audio system. Key specifications are listed below:

Figura 2: Dimensions del producte i especificacions principals
| Característica | Especificació |
|---|---|
| Potència de sortida | 4 * 80W |
| Relació senyal a soroll | > 70 dB |
| Standard Distortion | 0.1% |
| Corrent d'espera | 5 mA |
| Voltage Rang | 9-16V |
| Corrent màxima de treball | 25A |
| Mida de l'article (L*W*H) | 138*115*38 mm |
| Pes de l'article | 0.7 kg |
| Característiques especials | DSP/MP3/PCA/USB/APP |
| Codificació d'àudio | estèreo |
| Certificació | CE, FCC |
| Origen | Xina continental |
Note: There is a slight discrepancy in item weight between some visual representations (0.98kg) and the product properties (0.7kg). The JSON property value of 0.7kg is used here.
Configuració i instal·lació
Before installation, ensure your vehicle's power is off. Professional installation is recommended to ensure correct wiring and optimal performance.
1. Triar una ubicació d'instal·lació
The compact design of the MEKEDE 4470A allows for flexible installation within your vehicle. Common recommended locations include:
- Under the passenger seat
- Inside the passenger compartment (e.g., glove box or console)

Figure 3: Recommended Installation Locations
2. Interface Diagram and Connections
Familiaritza't amb el amplifier's interfaces before making any connections. Refer to the diagram below for port identification:

Figura 4: Amplifier Interface Diagram
- OPTICAL (A): Supports optical fiber input for high-quality digital audio.
- RCA OUT (B, D): Red (B) for right channel audio output, White (D) for left channel audio output.
- COAXIAL (C): Supports coaxial input for digital audio sources.
- CAR MEDIA (E): Power interface for integration with the car's media system.
- DSP APP (F): Connection port for the vehicle's central control host or a mobile phone to perform DSP debugging and adjustments.
- AUX IN (G): Auxiliary input for connecting external analog audio devices.
- USB (H): USB Music input for playing audio files directly from a U disk.
- POWER IN (I): Main power input interface for the ampmés viu.
Ensure all connections are secure and correctly matched according to your vehicle's wiring diagram to prevent damage to the amplifier or the vehicle's audio system.
Instruccions de funcionament
1. Ajustos de l'equalitzador DSP
The MEKEDE 4470A features advanced DSP (Digital Signal Processor) capabilities, allowing for precise audio tuning and customization. You can adjust settings using a dedicated mobile phone app or a computer.
- Mètodes d'afinació: Supports a variety of device tuning methods, including mobile phone app tuning and computer tuning.
- Funcions avançades: Utilize features such as delay adjustment, mono adjustment, mixing, and other advanced tuning functions to optimize your sound quality.

Figure 5: DSP Equalizer Adjustments and Sound Quality Improvement
The DSP significantly improves sound quality, transforming previously noisy and unclear audio into a considerably enhanced and clearer listening experience.
2. Opcions d'entrada d'àudio
El amplifier supports multiple audio input sources to cater to various preferences:
- Música USB: Insert a U disk (USB flash drive) into the USB port (H) to play decoded music directly through the DSP power ampmés viu.
- Entrada AUX: Connect external analog audio devices such as mobile phones or portable audio players to the AUX IN port (G) for improved sound quality after DSP processing.
- Optical Fiber Input: Utilize the OPTICAL IN port (A) for high-fidelity digital audio input from compatible sources.
- Entrada coaxial: Use the COAXIAL IN port (C) for digital audio input from compatible sources.

Figure 6: USB Music and AUX Input Features
3. Sound Field Positioning
El DSP amplifier allows for precise sound field positioning by controlling the timing of sound played by each car speaker. This advanced feature creates a surround sound effect, significantly enhancing the stereo feeling and providing an immersive, concert-hall like auditory experience within your vehicle.

Figure 7: Sound Field Positioning Comparison (Without DSP vs. With DSP)
Without DSP, speakers may produce sound simultaneously, leading to a less defined or disordered sound field. With DSP, the sound can be precisely timed to reach the designated listening position, significantly enhancing the stereo imaging and overall audio clarity.
Manteniment
To ensure the longevity and optimal performance of your MEKEDE 4470A DSP amplifier, follow these general maintenance guidelines:
- Neteja: Feu servir un drap suau i sec per netejar suaument l'exterior de la amplifier. Avoid using harsh chemicals, solvents, or abrasive cleaners, as these can damage the finish.
- Medi ambient: Mantenir el amplifier in a dry environment, away from excessive moisture, direct sunlight, dust, and extreme temperatures.
- Ventilació: Assegureu-vos el amplifier's heat sinks and ventilation openings are not obstructed. Proper airflow is crucial to prevent overheating and maintain stable operation.
- Connexions: Periodically check all power and audio connections to ensure they remain secure and free from corrosion. Loose connections can lead to poor sound quality or intermittent operation.
Resolució de problemes
If you encounter issues with your MEKEDE 4470A DSP amplifier, refer to the following common problems and their potential solutions:
| Problema | Causa possible | Solució |
|---|---|---|
| Sense sortida de so |
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| Distorted Sound / Noise |
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| Ampsobreescalfament del lificador |
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| APP/Software Connection Issues |
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Consells per a l'usuari
- Start with Default DSP Settings: When first setting up your amplifier, it's often best to begin with the default DSP settings. Make small, incremental adjustments to the equalizer, delay, and other parameters to gradually find your preferred sound profile.
- Experiment with Sound Field Positioning: Aprofiteu al màximtage of the sound field positioning feature. Adjusting the timing and delay for individual speakers can create a truly immersive listening experience tailored to your vehicle's unique interior acoustics.
- Utilize High-Quality Audio Sources: For the best possible sound quality, use high-resolution audio files via the USB input or digital inputs (optical/coaxial) whenever available. The DSP amplifier will process these signals to their full potential.
- Actualitzacions periòdiques de programari: Keep your DSP control app or computer software updated to the latest version. Updates often include new features, performance improvements, and bug fixes that can enhance your experience.
- Professional Installation for Best Results: While DIY installation is possible, professional installation ensures optimal wiring, grounding, and initial setup, which can significantly impact sound quality and system stability.
Garantia i Suport
Your MEKEDE 4470A Car DSP Box Power Amplifier comes with a 365-day free replacement warranty. This warranty covers manufacturing defects and quality problems that arise under normal use conditions.

Figure 8: 365 Days Free Replacement Warranty Process
The typical process for a free replacement under warranty involves the following steps:
- Contact the Seller: Initiate contact with the MEKEDEAUTO Europe Store through your purchase platform to report the issue.
- Confirm Quality Problems: Work with the seller to confirm the nature of the quality problem or manufacturing defect.
- Return Item to Seller: Once confirmed, you will be instructed to return the defective item to the seller.
- Seller Receives Return: The seller will process the returned item upon receipt.
- Seller Sends New Item: A new replacement item will be dispatched to you.
For any support inquiries, technical assistance, or to initiate a warranty claim, please contact the MEKEDEAUTO Europe Store directly through the platform where you made your purchase. Please have your order details ready when contacting support.





