1. Introdución
The Audison SR 4.300 is a high-performance D-Class 4-channel amplifier designed for car audio systems. This amplifier delivers 85 W x 4 at 4 Ohms and features Audison D-Class Technology (ADT) for compact size without compromising audio quality. Its design incorporates extruded aluminum with rounded corners for easy installation in confined spaces, and generous heat sinks eliminate the need for internal cooling fans. This manual provides essential information for proper installation, operation, and maintenance of your SR 4.300 ampmáis vivo.
2. Características clave
- ADC (Audison D-Class) Technology: Ensures high audio performance in a compact size with a 2 Ohm stable output stage.
- Deseño compacto: Extruded aluminum construction with fanless convection cooling.
- Universal Speakers Simulator (USS): Built-in for compatibility with various head units.
- Entradas flexibles: Balanced high-noise rejection Speaker-In for OEM head units and RCA-In for aftermarket head units.
- Automatic Remote Turn-On/Off (ART): Automatically powers the amplifier on/off with the OEM head unit (can be enabled/disabled with Speaker-In inputs).
- Saídas previas: Available even when using Speaker-In level inputs.
3. Información de seguridade
Please read all instructions carefully before installing and operating the amplifier. Failure to follow these guidelines may result in damage to the product, vehicle, or personal injury.
- Desconecte sempre o terminal negativo da batería do vehículo antes de comezar calquera traballo eléctrico.
- Ensure proper wiring gauge and fusing are used for power connections to prevent fire hazards.
- Monte o ampo refrigerador de forma segura nun lugar que permita unha ventilación axeitada e estea protexido da humidade e da calor excesiva.
- Evite instalar o amplifier in areas where it could interfere with vehicle safety systems or driver visibility.
- Consulta cun instalador profesional se tes algunha dúbida sobre algún aspecto do proceso de instalación.
4. Contido do paquete
Verifica que todos os elementos estean presentes no paquete:
- Audison SR 4.300 D-Class 4-Channel Amplifier (Model: SR4.300-FBA)
- Manual de usuario (este documento)
- Ferraxes de montaxe (parafusos, etc.)
- Connection Terminals/Plugs (as supplied by manufacturer)
5. Instalación e configuración
Proper installation is crucial for optimal performance and safety. The Audison SR 4.300 ampO lificador está deseñado para montaxe superficial.
5.1. Lugar de montaxe
Choose a mounting location that is dry, well-ventilated, and secure. Ensure sufficient space around the amplifier for air circulation, especially around the heat sinks.
5.2. Conexións rematadasview
O amplifier features various input and output terminals for power, signal, and speaker connections. Refer to the images below for a visual guide.

Descrición: This image displays the Audison SR 4.300 amplifier from a front-side perspective. Visible are the Audison logo, model number, and various input/output terminals including RCA inputs, speaker inputs, and power connections. The ribbed heat sink design is also prominent.

Descrición: Esta imaxe ofrece unha vista de arriba abaixo view of the Audison SR 4.300 amplifier. The control panel is clearly visible, featuring switches and potentiometers for channel selection, input mode, filter settings (LP/HP/BP), and gain adjustments for channels A and B. Power and speaker terminals are also visible along the edges.

Descrición: This close-up image focuses on the input and output section of the Audison SR 4.300 amplifier. It shows the RCA input jacks (MONO IN, IN A, IN B), speaker-level inputs, and pre-out connections. The power and remote turn-on terminals are also visible, along with the speaker output terminals.
5.3. Conexións de alimentación
- Connect the main power cable (positive +12V) to the amplifier's +12V terminal. Ensure an appropriate fuse (1 x 30A) is installed close to the vehicle's battery.
- Conecte o cable de terra ao ampo terminal GND do adaptador e a un punto metálico limpo e sen pintar no chasis do vehículo.
- Conecta o cable de acendido remoto da unidade principal á amplifier's REM IN terminal. If using Speaker-In inputs with an OEM head unit, the ART (Automatic Remote Turn-On/Off) feature can be utilized, eliminating the need for a separate remote wire.
5.4. Entradas de sinal
- Entradas RCA: For aftermarket head units, connect RCA cables from the head unit's pre-outs to the amplifier's RCA-In terminals (IN A, IN B).
- Speaker-Level Inputs: For OEM head units without RCA outputs, connect the speaker wires directly to the amplifier's Speaker-In terminals. The built-in USS (Universal Speakers Simulator) ensures compatibility.
5.5. Saídas de altofalantes
Conecta os teus altofalantes ao amplifier's speaker output terminals (AL, AR, BL, BR). Ensure correct polarity (+/-) for each speaker. The amplifier supports 2 Ohm stable operation.
6. Instrucións de funcionamento
Once installed, configure the amplifier settings using the controls on the top panel (refer to Figure 2).
- Modo de entrada: Select the appropriate input mode (e.g., 2-channel, 4-channel) based on your system configuration.
- Configuración do filtro: Adjust the High-Pass (HP), Low-Pass (LP), or Band-Pass (BP) filters for each channel pair to optimize sound reproduction for your speakers.
- Axuste de ganancia: Carefully set the gain levels for channels A and B to match the output voltage of your head unit. Start with the gain at minimum and slowly increase until desired volume is achieved without distortion.
7. Mantemento
The Audison SR 4.300 ampO lificador require un mantemento mínimo para garantir un rendemento a longo prazo.
- Manteña o ampManteña o purificador limpo e libre de po e residuos. Use un pano suave e seco para a limpeza.
- Ensure that the heat sinks are not obstructed to allow for proper cooling.
- Periodically check all connections for tightness and corrosion.
8 Solución de problemas
Se tes problemas co teu amplificador, consulte os seguintes pasos comúns de resolución de problemas:
- Sen enerxía: Check the main fuse, power connections (+12V, GND, REM), and ensure the vehicle battery is charged.
- Sen son: Verify all input and output signal connections. Check head unit settings and amplifier gain levels. Ensure speakers are properly connected and functional.
- Son distorsionado: Reduce gain levels. Check for proper filter settings. Ensure speaker impedance matches amplifier capabilities.
- Ampsobrequecemento do lificador: Garantir unha ventilación adecuada ao redor amplifier. Check speaker impedance. Reduce volume levels.
If problems persist, consult an authorized Audison service center.
9. Especificacións
| Parámetro | Valor |
|---|---|
| Número de modelo | SR4.300-FBA |
| Alimentación Voltage / Fusible | 11 ÷ 15 VDC / 1 x 30A |
| Fuente de alimentación operativa Voltage | 6.5V ÷ 17 VDC |
| Corrente de ralentí | 1.6 A |
| Idling Current when off | 0.03 mA |
| Consumption @ 14.4 VDC, 2Ω, Max Musical Power | 25 A |
| Dimensións do paquete | 10.2 x 7.91 x 3.7 polgadas |
| Peso | 4 libras |
| Fabricante | Audison |
| Tipo de montaxe | Montaxe en superficie |
10. Garantía e soporte
Audison products are manufactured to the highest quality standards. For warranty information, please refer to the warranty card included with your product or visit the official Audison website. For technical support or service inquiries, please contact your authorized Audison dealer or distributor.