1. Introdução
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. Principais características
- 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.
- LED Status Bar: 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.
- Design empilhável: Série MA amplifiers are stackable, enabling compact, multi-ampinstalações lificadoras.
- Engenharia Alemã: Designed in Germany, ensuring high standards of quality and performance.
3. Configuração e instalação
A instalação correta é crucial para o desempenho e a segurança ideais. Recomenda-se que a instalação seja realizada por um profissional qualificado.
3.1 Desembalagem e Inspeção
Remova cuidadosamente o 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 Ampmais vivo
- 1 Plugue de alimentação
- 3 conectores de alto-falante
- 3 High-Level Cables
- Controle remoto de nível
- 4 Pés de Montagem
- Parafusos de montagem
3.2 Montagem do Ampmais vivo
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: Explodido view illustrating the stackable design and mounting points for multiple MA series amplificadores.

Figure 3.2.3: Detail of the variable mounting feet, allowing for flexible installation options.
- Escolha um local de montagem adequado.
- Use the provided mounting feet and screws to secure the ampmais vivo.
- For stacked installations, utilize the additional mounting points and blind holes.
3.3 Conexões de Fiação
Certifique-se de que a bateria do veículo esteja desconectada antes de fazer qualquer conexão elétrica.

Figure 3.3.1: Rear panel showing power, speaker, and RCA input/output connections.
- Conexão de energia: Connect the power plug to the amplifier. Ensure proper polarity (+12V, GND, Remote). Use appropriate gauge wiring for power and ground.
- Conexões do alto-falante: Use the provided speaker connectors to connect your speakers to the amplifier's output terminals (CH1-CH4). Observe correct polarity.
- Entrada de áudio:
- Entrada de alto nível: 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).
- Controle remoto: Connect the level remote control if desired for convenient volume adjustment.
4. Operação e Ajustes
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 Inicialização
- Após todas as conexões estarem feitas, reconecte a bateria do veículo.
- Ligue o aparelho de som. amplifier should power on, indicated by the LED status bar.
4.2 Ajustando os controles
Use the integrated adjustment tool to set the following parameters:
- Controle de Ganho: 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 (Filtro Passa-Alta): Allows frequencies above the set point to pass. Useful for protecting smaller speakers from low bass frequencies.
- LPF (Filtro Passa-Baixa): Allows frequencies below the set point to pass. Typically used for subwoofers.
- Vol de entradatage Controle: 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. Manutenção
The ETON MA 4 ampO amplificador foi projetado para ser durável e requer manutenção mínima.
- Limpeza: Use um pano macio e seco para limpar o ampExterior do amplificador. Evite produtos de limpeza abrasivos ou solventes.
- Ventilação: Assegurar que o amplifier's heatsink fins are free from dust and debris to maintain proper cooling. Do not obstruct airflow around the ampmais vivo.
- Conexões: Verifique periodicamente todas as conexões de fiação para garantir que estejam seguras e livres de corrosão.
6. Solução De Problemas
If you experience issues with your ETON MA 4 ampPara obter informações sobre amplificadores, consulte os seguintes problemas comuns e suas soluções:
| Problema | Possível causa | Solução |
|---|---|---|
| Sem energia / Amplifier não liga |
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| Sem saída de som |
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| Som distorcido |
|
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| AmpSuperaquecimento do amplificador |
|
|
7. Especificações técnicas
| Recurso | Especificação |
|---|---|
| Número do modelo | MA 4 |
| Potência de saída (RMS) |
|
| Sinal-Ruído | 83 dB |
| Damping Factor @ 4 ohms | > 165 |
| Dimensões (C x L x A) | 184 x 160 x 51 mm |
| Número de canais | 4 |
| Material | Alumínio fundido |
| Tipo de montagem | Through-hole mounting |
| Conformidade | TV |
8. Informações de 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 webConsulte o site para obter os termos e condições de garantia mais recentes.
9. Suporte ao cliente
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 website ou na documentação do produto.
Manufacturer: ETON
For more information, you may visit the official ETON website: www.eton-gmbh.com





