1. Introdución
The Focal ISUBACTIVE amplified subwoofer is designed to enhance your vehicle's audio system by providing powerful and dynamic bass. This compact unit integrates seamlessly into various vehicle interiors, typically under a seat, without compromising cabin or trunk space. It connects directly to your car radio's speaker outputs using the included Plug & Play ISO cable, simplifying installation.
2. Información de seguridade
Please read all safety instructions before installing or operating this product. Failure to follow these guidelines may result in injury or damage to the product or vehicle.
- Instalación profesional recomendada: Installation of car audio equipment can be complex. If you are unsure about any step, seek assistance from a qualified professional.
- Desconexión de alimentación: Desconecte sempre o terminal negativo da batería do vehículo antes de comezar calquera traballo eléctrico para evitar curtocircuítos.
- Cableado: Ensure all wiring is correctly routed and secured to prevent damage from moving parts or heat. Use appropriate gauge wires for power and ground connections.
- Ventilación: Ensure the subwoofer has adequate ventilation. Do not block any vents or place the unit in an enclosed space where heat cannot dissipate.
- Niveis de volume: A exposición prolongada a niveis de volume elevados pode causar danos auditivos. Axuste o volume con responsabilidade.
3. Contido do paquete
Verifica que todos os elementos estean presentes no paquete:
- Focal ISUBACTIVE AmpUnidade de subwoofer actualizada
- Plug & Play ISO Cables
- Remote Control (if applicable, based on model variant)
- Ferraxes de montaxe (parafusos, soportes)
- Manual de usuario (este documento)
4. Produto rematadoview
Familiarize yourself with the various components and controls of your ISUBACTIVE subwoofer.

Figura 1: Arriba view of the Focal ISUBACTIVE subwoofer, highlighting the main speaker grille and the rear panel with various connections and controls.

Figura 2: Detallado view of the power input terminals (GND, REM, +12V), fuse, High-Level inputs, Low-Level (RCA) inputs, Remote Control port, and Speaker Outputs.

Figura 3: Detallado view of the audio adjustment controls including Gain, Subsonic filter, Bass-Boost, Low-Pass filter, Phase switch, and Power Status LED.
Características do panel de control:
- POWER (GND, REM, +12V): Terminals for ground, remote turn-on, and 12V power supply.
- FUSIBLE: Fusible integrado para a protección do circuíto.
- HI LEVEL: High-level speaker input for direct connection to car radio speaker outputs. Includes an AUTO TURN ON switch.
- LOW LEVEL (RCA): Low-level RCA input for connection to car radio pre-outs.
- CONTROL REMOTO: Port for connecting an optional wired remote control for bass level adjustment.
- OUTPUTS SPEAKERS: Speaker outputs for connecting additional speakers (if applicable to specific model variant).
- GAIN (Min. - Max.): Adjusts the input sensitivity to match the output of your car radio.
- SUBSONIC (20Hz - 50Hz): High-pass filter for the subwoofer, removing ultra-low frequencies that are inaudible and can waste amppotencia lifier.
- BASS-BOOST (0 - +18dB): Adjusts the bass level at a specific frequency.
- LOW-PASS (50Hz - 180Hz): Low-pass filter for the subwoofer, allowing only frequencies below the set point to pass through.
- FASE (0° - 180°): Axusta a fase da saída do subwoofer para que coincida cos altofalantes principais, mellorando a integración dos graves.
- POWER STATUS: LED indicator (Green for Power, Red for Protect).
5. Configuración e instalación
Unha instalación axeitada é fundamental para un rendemento e unha seguridade óptimos. Siga estes pasos atentamente.
5.1 Colocación
The ISUBACTIVE subwoofer is designed for compact integration, typically under a car seat. Ensure the chosen location allows for:
- Adequate air circulation around the unit to prevent overheating.
- Secure mounting to prevent movement during vehicle operation.
- Easy access to controls for initial setup and adjustments.
5.2 Conexións de cableado
Antes de facer calquera conexión, desconecte o terminal negativo da batería do vehículo.
- Conexión de alimentación (+12 V): Connect a suitable gauge power cable from the vehicle's positive battery terminal (with an inline fuse located within 18 inches of the battery) to the +12V terminal on the subwoofer.
- Conexión a terra (GND): Connect a suitable gauge ground cable from the GND terminal on the subwoofer to a clean, unpainted metal surface on the vehicle chassis. Ensure a good electrical contact.
- Acendido remoto (REM): Connect a remote turn-on wire from your car radio's remote output to the REM terminal on the subwoofer. If using High-Level inputs with the AUTO TURN ON feature, this connection may not be necessary.
- Entrada de sinal:
- Entrada de alto nivel (nivel do altofalante): Use the supplied Plug & Play ISO cable to connect to your car radio's speaker outputs. Ensure correct polarity. Set the AUTO TURN ON switch to 'ON' if you want the subwoofer to power on automatically with the radio.
- Entrada de baixo nivel (RCA): If your car radio has RCA pre-outs, connect RCA cables from the radio to the LOW LEVEL (RCA) inputs on the subwoofer.
- Control remoto (opcional): If using a wired remote control, connect it to the REMOTE CONTROL port.
- Speaker Outputs (Optional): If your model variant includes speaker outputs, connect your additional speakers here, observing polarity.
Once all connections are made, reconnect the vehicle's negative battery terminal.
6. Instrucións de funcionamento
After installation, follow these steps to configure your subwoofer for optimal sound.
6.1 Initial Power-Up and Gain Adjustment
- Turn on your car radio. The subwoofer's POWER STATUS LED should illuminate green. If it's red or off, refer to the Troubleshooting section.
- Set the GAIN control on the subwoofer to its minimum position.
- Play a piece of music with a good bass presence through your car radio.
- Slowly increase the volume on your car radio until it reaches about 75% of its maximum level, or just before distortion becomes audible from your main speakers.
- Gradually increase the GAIN control on the subwoofer until the bass blends smoothly with your main speakers without overpowering them or sounding distorted.
6.2 Adjusting Audio Controls
- LOW-PASS Filter (50Hz - 180Hz): This control determines the highest frequency the subwoofer will reproduce. Start by setting it around 80-100Hz. Adjust it to blend the subwoofer's output with your main speakers. If your main speakers are small, you might set it higher; if they are large, you might set it lower.
- SUBSONIC Filter (20Hz - 50Hz): This high-pass filter for the subwoofer removes very low, inaudible frequencies. Setting it around 25-30Hz can improve efficiency and prevent damage from extreme low-frequency content.
- BASS-BOOST (0 - +18dB): Use this control sparingly to add a slight emphasis to the bass if desired. Excessive boost can lead to distortion.
- FASE (0° - 180°): This switch helps integrate the subwoofer's output with your main speakers. Listen to music with strong bass and switch between 0° and 180°. Choose the setting that provides the most impactful and cohesive bass response.
7. Mantemento
The Focal ISUBACTIVE subwoofer requires minimal maintenance.
- Limpeza: Usa un pano suave e seco para limpar o exterior da unidade. Non empregues produtos químicos agresivos nin produtos de limpeza abrasivos.
- Inspección: Comprobe periodicamente todas as conexións do cableado para asegurarse de que estean seguras e libres de corrosión.
- Ventilación: Ensure that the area around the subwoofer remains clear of obstructions to maintain proper airflow.
8 Solución de problemas
If you encounter issues with your ISUBACTIVE subwoofer, refer to the following table before contacting support.
| Problema | Causa posible | Solución |
|---|---|---|
| No power (Power LED off) |
|
|
| Power LED is red (Protection Mode) |
|
|
| Non hai son do subwoofer |
|
|
| Son distorsionado |
|
|
| Baixos débiles ou turbios |
|
|
9. Especificacións
Technical specifications for the Focal ISUBACTIVE 8" Underseat Amplified Subwoofer.
| Característica | Especificación |
|---|---|
| Tipo de produto | bass-reflex ampsubwoofer iluminado |
| Tamaño do subwoofer | 8 polgadas (20 cm) |
| Potencia máxima | 260 vatios |
| Potencia nominal (RMS) | 130 vatios RMS |
| Resposta en frecuencia (+/- 3 dB) | 45 Hz - 150 kHz |
| Impedancia nominal | 4 Ω |
| Crossover de paso baixo | Axustable de 50 Hz a 180 Hz |
| Subsonic Filter (High-Pass) | Axustable de 20 Hz a 50 Hz |
| aumento de graves | Adjustable from 0 to +18dB |
| Control de fase | 0° / 180° switch |
| Input Sensitivity (High-Level) | Compatible with car radio speaker outputs |
| Sensibilidade de entrada (nivel baixo) | Compatible with RCA pre-outs |
| Dimensións (ancho x fondo x alto) | 328 mm x 230 mm x 63 mm (12.9 x 9 x 2.5) |
| Peso | 4.25 kg (9.6 lb) |
| Accesorios incluídos | Plug & Play ISO cables |
10. Información da garantía
This Focal ISUBACTIVE subwoofer comes with a limited warranty. The specific terms and duration of the warranty may vary by region and retailer. Please retain your proof of purchase for warranty claims. For detailed warranty information, refer to the documentation provided with your product or visit the official Focal websitio.
11. Atención ao cliente
For further assistance, technical support, or service inquiries, please contact your authorized Focal dealer or visit the official Focal websitio web para obter información de contacto na súa rexión.
Focal Official Websitio: www.focal.com