1. Introducció
The ETON MA 4 is a high-performance 4-channel Class D compact amplifier designed for automotive and recreational vehicle audio systems. This amplifier combines advanced technology with a compact design, offering premium sound quality and high output performance. It is engineered for optimal compatibility and flexible installation in various vehicle types.
2. Característiques clau
- Advanced Class D Technology: Utilizes high-quality electronic components and multi-layer boards for high efficiency and superior sound reproduction with minimal distortion.
- Compact Aluminum Housing: Features a one-piece die-cast aluminum housing with a matte anodized finish, ensuring durability and efficient heat dissipation.
- Flexible Top Plate: The ETON logo top plate is removable and can be rotated 180° for flexible mounting options and optimal aesthetic integration.
- Comprehensive Adjustment Options: Hidden beneath the top plate are controls for 12 dB/octave high-pass and low-pass filters, high-level input voltage control, high-level input resistance (input load), and gain settings.
- Integrated Adjustment Tool: A specialized tool is integrated into the heatsink for convenient adjustment of filter functions and gain.
- Barra d'estat LED: An indirect LED light bar assists in setting controls accurately.
- Removable Connectors: Features detachable connectors for power and audio signals, simplifying installation and maintenance.
- Variable Mounting Feet: Adjustable mounting feet allow for versatile installation, including hidden setups.
- Disseny apilable: Sèrie MA amplifiers are stackable, enabling compact, multi-ampinstal·lacions de purificació.
- Enginyeria alemanya: Designed in Germany, ensuring high standards of quality and performance.
3. Configuració i instal·lació
Una instal·lació correcta és crucial per a un rendiment i una seguretat òptims. Es recomana que la instal·lació la realitzi un professional qualificat.
3.1 Desembalatge i inspecció
Traieu amb cura amplifier from its packaging. Inspect for any signs of damage during transit. Ensure all components listed in the package contents are present.
- ETON MA 4 Ampmés viu
- 1 Endoll d'alimentació
- 3 connectors d'altaveus
- 3 High-Level Cables
- Control remot de nivell
- 4 Peus de muntatge
- Cargols de muntatge
3.2 Muntatge del Ampmés viu
The MA 4's compact size and variable mounting feet allow for flexible installation. Consider a location that provides adequate ventilation and is protected from moisture and excessive heat.

Figure 3.2.1: ETON MA 4 Amplifier, showing its compact design and connection ports.

Figura 3.2.2: Explotat view illustrating the stackable design and mounting points for multiple MA series ampaixecadors.

Figure 3.2.3: Detail of the variable mounting feet, allowing for flexible installation options.
- Trieu un lloc de muntatge adequat.
- Use the provided mounting feet and screws to secure the ampmés viu.
- For stacked installations, utilize the additional mounting points and blind holes.
3.3 Connexions de cablejat
Ensure the vehicle's battery is disconnected before making any electrical connections.

Figure 3.3.1: Rear panel showing power, speaker, and RCA input/output connections.
- Connexió d'alimentació: Connect the power plug to the amplifier. Ensure proper polarity (+12V, GND, Remote). Use appropriate gauge wiring for power and ground.
- Connexions d'altaveus: Use the provided speaker connectors to connect your speakers to the amplifier's output terminals (CH1-CH4). Observe correct polarity.
- Entrada d'àudio:
- Entrada d'alt nivell: If your head unit does not have RCA outputs, use the high-level input cables provided. Connect them to the speaker outputs of your head unit.
- Low-Level (RCA) Input: Connect RCA cables from your head unit's pre-out to the amplifier's RCA input jacks (CH1/2, CH3/4).
- Comandament a distància: Connect the level remote control if desired for convenient volume adjustment.
4. Funcionament i ajustos
The ETON MA 4 offers various controls to fine-tune your audio system. These controls are located under the removable top plate.

Figura 4.1.1: Amplifier with top cover removed, revealing the adjustment controls for filters, gain, and input settings.

Figure 4.1.2: Detail of the orange adjustment tool integrated into the heatsink for precise control adjustments.
4.1 Engegada inicial
- Després de fer totes les connexions, torneu a connectar la bateria del vehicle.
- Engegueu la unitat principal. El amplifier should power on, indicated by the LED status bar.
4.2 Ajust dels controls
Use the integrated adjustment tool to set the following parameters:
- Control de guany: Adjust the gain for each channel (CH1/2, CH3/4) to match the output level of your head unit. Start with the gain at minimum and slowly increase until desired volume is achieved without distortion. The LED status bar can assist in this process.
- Filter Settings (HPF/LPF):
- HPF (filtre de pas alt): Allows frequencies above the set point to pass. Useful for protecting smaller speakers from low bass frequencies.
- LPF (filtre de pas baix): Allows frequencies below the set point to pass. Typically used for subwoofers.
- Entrada Voltage Control: Adjust this setting based on whether you are using high-level or low-level inputs to ensure proper signal matching.
- Input Resistance (Input Load): For high-level inputs, adjust the input resistance to optimize signal transfer from the head unit.
5. Manteniment
The ETON MA 4 amplifier is designed for durability and requires minimal maintenance.
- Neteja: Utilitzeu un drap suau i sec per netejar-lo ampl'exterior del purificador. Eviteu netejadors o dissolvents abrasius.
- Ventilació: Assegureu-vos que el amplifier's heatsink fins are free from dust and debris to maintain proper cooling. Do not obstruct airflow around the ampmés viu.
- Connexions: Reviseu periòdicament totes les connexions del cablejat per assegurar-vos que estiguin ben fixades i que no presentin corrosió.
6. Solució De Problemes
If you experience issues with your ETON MA 4 amplifier, consulteu els següents problemes i solucions habituals:
| Problema | Causa possible | Solució |
|---|---|---|
| Sense alimentació / Ampel lifier no s'encén |
|
|
| Sense sortida de so |
|
|
| So distorsionat |
|
|
| Ampsobreescalfament del lificador |
|
|
7. Especificacions tècniques
| Característica | Especificació |
|---|---|
| Número de model | MA 4 |
| Potència de sortida (RMS) |
|
| Ràtio senyal / soroll | 83 dB |
| Damping Factor @ 4 ohms | > 165 |
| Dimensions (L x A x A) | 184 x 160 x 51 mm |
| Nombre de canals | 4 |
| Material | Fundició d'alumini |
| Tipus de muntatge | Through-hole mounting |
| Compliment | TÜV |
8. Informació de la garantia
Specific warranty details are typically provided with the product packaging or available on the manufacturer's official website. Please refer to the documentation included with your purchase or visit the ETON weblloc web per consultar els termes i condicions de garantia més actualitzats.
9. Atenció al client
For technical assistance, troubleshooting beyond this manual, or service inquiries, please contact ETON customer support. Contact information can usually be found on the manufacturer's weblloc o a la documentació del producte.
Manufacturer: ETON
For more information, you may visit the official ETON weblloc: www.eton-gmbh.com





