Introdução
Thank you for choosing the Memphis Audio MXA300.1 Monoblock Marine/Powersport Audio Ampmais vivo. Esse amplifier is engineered for durability and high performance in challenging environments, including marine and powersport applications. Its robust design features conformal circuit boards, sealed controls, and upgraded terminals, ensuring reliable operation in wet and harsh conditions. This manual provides essential information for proper installation, operation, and maintenance of your ampmais vivo.
Informações de segurança
- Desconecte sempre a bateria do veículo antes de instalar ou realizar qualquer manutenção em componentes elétricos.
- Certifique-se de que toda a fiação esteja devidamente isolada e fixada para evitar curtos-circuitos e danos.
- Instalar o ampInstale o amplificador em um local que permita ventilação adequada para evitar superaquecimento.
- Evite instalar o ampAmplificador em áreas expostas à luz solar direta ou calor excessivo.
- Use appropriate gauge wiring as recommended for your audio system to ensure optimal performance and safety.
- Esse amplifier is designed for 12V DC negative ground systems. Do not attempt to use it with other voltage sistemas.
- Refer to a professional installer if you are unsure about any installation steps.
Características
- Resistente à água IP66: Designed to withstand water jets and dust, making it suitable for marine and powersport environments.
- High/Low Level Inputs: Opções de entrada versáteis para compatibilidade com diversas unidades principais.
- Sealed Connectors and Controls: Enhanced protection against moisture and contaminants.
- Pegada compacta: Ideal for installations where space is limited.
- Filtro Subsônico: Helps protect subwoofers from damaging ultra-low frequencies.
- Construção durável: Conformal circuit boards and upgraded terminals for long-lasting performance.
Configuração e instalação
Proper installation is crucial for the performance and longevity of your MXA300.1 ampAmplificador. Siga estas instruções cuidadosamente.
Localização de montagem
Choose a mounting location that is dry, well-ventilated, and protected from direct sunlight. While the amplifier is water-resistant, avoiding direct exposure to extreme elements will prolong its life. The ampO amplificador foi projetado para montagem em superfície.

Figura 1: Visão de cima para baixo view of the Memphis Audio MXA300.1 amplifier, highlighting its compact black casing and integrated wiring harnesses for power and signal connections.
Conexões de fiação
Ensure all connections are secure and properly insulated. The amplifier features sealed connections for enhanced element resistance.
- Conexão de energia: Connect the positive (+) power wire to the vehicle's battery (or power distribution block) via an appropriate fuse (not included). The recommended amp kit is 8GKIT. Connect the negative (-) ground wire to a clean, unpainted metal surface on the vehicle chassis.
- Ativação Remota: Connect the remote turn-on wire from your head unit to the ampEntrada remota do amplificador.
- Entrada de áudio: Use either the high-level (speaker level) inputs or low-level (RCA) inputs from your head unit. Ensure correct polarity for all connections.
- Saída do alto-falante: Conecte seu(s) subwoofer(s) ao amplifier's speaker output terminals. Observe correct polarity.

Figura 2: Lateral view of the Memphis Audio MXA300.1 amplifier, illustrating the various input and output connections, including power, ground, remote, and audio signal ports.
Operação
Once properly installed, your MXA300.1 amplifier is ready for operation. The amplifier features a subsonic filter to optimize subwoofer performance.
- Ligar/desligar: O amplifier will power on automatically when it receives a signal from the remote turn-on wire from your head unit. It will power off when the head unit is turned off.
- Ajuste de ganho: Ajuste o controle de ganho para corresponder ao volume de saída.tage of your head unit. Start with the gain at minimum and slowly increase it until you achieve clear, undistorted sound at your desired volume level.
- Filtro Subsônico: The built-in subsonic filter helps protect your subwoofer by filtering out extremely low frequencies that are inaudible and can cause damage. This filter is pre-set for optimal performance.

Figure 3: A different perspective of the Memphis Audio MXA300.1 amplifier, emphasizing its compact dimensions and the rugged design suitable for harsh environments.
Manutenção
The MXA300.1 amplifier is designed for minimal maintenance due to its robust, sealed construction. However, periodic checks can ensure optimal performance.
- Limpeza: Limpe periodicamente a parte externa do amplifier com um macio, damp Use um pano para remover poeira e sujeira. Não utilize produtos químicos agressivos ou abrasivos.
- Verificações de conexão: Annually inspect all wiring connections to ensure they remain tight and free from corrosion.
- Ventilação: Certifique-se de que a área ao redor do amplifier remains clear of obstructions to allow for proper airflow and heat dissipation.
Solução de problemas
| Problema | Possível causa | Solução |
|---|---|---|
| Sem energia/sem som | Blown fuse; Loose power/ground connection; No remote turn-on signal; AmpAmplificador em modo de proteção. | Check and replace fuse; Verify all power and ground connections are secure; Check remote wire connection and head unit output; Disconnect power for 30 seconds to reset ampmais vivo. |
| Som distorcido | Ganho muito alto; Impedância do alto-falante muito baixa; Conexão de aterramento deficiente; Alto-falante danificado. | Reduce gain setting; Verify speaker impedance matches amplifier specifications; Ensure ground connection is clean and secure; Test speakers individually. |
| No Bass Output | Incorrect wiring polarity for subwoofer; Subwoofer not connected; Low-pass filter setting incorrect (if applicable). | Check subwoofer wiring polarity; Verify subwoofer connection; Ensure head unit or amplifier settings are correct for bass output. |
| AmpSuperaquecimento do amplificador | Ventilação insuficiente; Impedância dos alto-falantes muito baixa; Uso prolongado em volume alto. | Garanta uma circulação de ar adequada ao redor. ampAmplificador; Verifique a impedância do alto-falante; Reduza o volume ou permita amplificador para esfriar. |
Especificações
| Recurso | Especificação |
|---|---|
| Modelo | MXA300.1 |
| Potência RMS @ 4Ω | 190 x 1 watts |
| Potência RMS @ 2Ω | 300 x 1 watts |
| THD% a 4Ω | <1% |
| Resposta de frequência | 19Hz - 280Hz |
| Dimensões (C x L x A) | 8.625 x 3.25 x 1.75 polegadas |
| Faixa de entrada | 350mV - 11V |
| Recomendado Amp Kit | KIT 8G |
| Peso do item | 2.65 libras |
| Volumetage | 11 Volts (CC) |
| Volume Mínimo de Fornecimentotage | 350 milivolts |
| Tipo de montagem | Montagem em superfície |
Informações de garantia
The Memphis Audio MXA300.1 ampO lificador vem com um Garantia de 2 ano from the date of purchase. This warranty covers defects in materials and workmanship under normal use. It does not cover damage caused by improper installation, accident, misuse, abuse, negligence, or unauthorized modification. Please retain your proof of purchase for warranty claims.
Suporte ao cliente
For technical assistance, troubleshooting beyond this manual, or warranty inquiries, please contact Memphis Audio customer support. Visit the official Memphis Audio webAcesse o site para obter as informações de contato mais atualizadas e recursos adicionais.
Website: www.memphiscaraudio.com (Examp(O link, o link real pode variar)





