1. Introduzione
This manual provides essential information for the proper installation, operation, and maintenance of your Focal SUB 12 12-inch subwoofer. Please read these instructions thoroughly before attempting to install or use the product. Retain this manual for future reference.

Figura 1: Fronte view of the Focal SUB 12 subwoofer.
2. Istruzzioni di sicurità
- Trattamentu di putenza: Assicurà u amplifier connected to the subwoofer does not exceed the subwoofer's maximum power handling (600 W MAX) to prevent damage.
- cablaggio: Always disconnect the vehicle's battery before making any electrical connections. Ensure correct polarity when wiring the subwoofer. Incorrect wiring can cause damage to the subwoofer or amppiù vivu.
- Enclosure: Install the subwoofer in a suitable enclosure (sealed or bass-reflex) as recommended for optimal performance and longevity.
- Muntamentu: Securely mount the subwoofer to prevent movement during vehicle operation. Loose components can cause injury or damage.
- Ambiente: This product is not waterproof. Avoid exposure to moisture or extreme temperatures.
- Installazione prufessiunale: Sè vo site incertu nantu à qualsiasi aspettu di l'installazione, cunsultate un prufessiunale qualificatu di l'audio di vittura.
3. Cuntenutu di u pacchettu
Verificate chì tutti l'articuli sò presenti in u pacchettu:
- 1x Focal SUB 12 12-inch Subwoofer
- Manuale d'istruzzioni (stu documentu)
4. Setup è Installazione
The Focal SUB 12 subwoofer is designed for installation in a custom enclosure. It can be used effectively in both sealed and bass-reflex (ported) box configurations.
4.1 Raccomandazioni per l'involucri
- Scatola sigillata: Minimum recommended volume from 15 liters. A sealed enclosure provides tight, accurate bass response.
- Bass-Reflex Box: Minimum recommended volume from 30 liters. A bass-reflex enclosure typically offers louder, deeper bass output.
Consult a car audio specialist or use specialized software for precise enclosure design tailored to your vehicle and listening preferences.
4.2 Wiring the Subwoofer
The SUB 12 features a single 4-Ohm voice coil. Connect the subwoofer to your amplifier using appropriate gauge speaker wire. Ensure secure connections at both the subwoofer terminals and the amppiù vivu.

Figura 2: Posteriore view of the SUB 12, showing the push terminals for wiring.
Passi di cunnessione:
- Identify the positive (+) and negative (-) terminals on both the subwoofer and your amppiù vivu.
- Connect the positive (+) terminal of the subwoofer to the positive (+) output of the amppiù vivu.
- Connect the negative (-) terminal of the subwoofer to the negative (-) output of the amppiù vivu.
- Ensure all connections are tight and free from short circuits.
4.3 Cumpunente Overview

Figure 3: Diagram illustrating key components of the Focal SUB 12 subwoofer.
The SUB 12 features a robust design for optimal performance and durability:
- Butyl Surround: Provides superior resistance and durability for long-lasting performance.
- Conu di polipropilene: Offers high rigidity, which reduces distortion even at extreme volumes, ensuring clear and powerful bass.
- Steel Chassis: A rigid and compact frame that provides structural integrity.
- Spider Decompression: Enhances voice coil ventilation, contributing to improved power handling and reliability.
- Push Terminals: Simple and reliable connection points for speaker wire.
5. Funziunamentu di u Subwoofer
Once installed and wired correctly, the subwoofer will operate in conjunction with your car audio system. The bass output level and crossover frequency are typically controlled by your amplifier o unità di testa.
- Accensione iniziale: After installation, turn on your audio system at a low volume. Gradually increase the volume and adjust bass settings to your preference.
- Periudu di robba: Allow a break-in period of several hours of normal listening before operating the subwoofer at high volumes. This allows the suspension components to loosen and perform optimally.
- Controlu di u voluminu: Avoid excessive volume levels that cause audible distortion or rattling, as this can damage the subwoofer.
6. Mantenimentu
The Focal SUB 12 subwoofer requires minimal maintenance.
- Pulizia: Use a soft, dry cloth to wipe the cone and surround. Avoid using harsh chemicals or abrasive cleaners.
- Ispezione: Periodically check wiring connections for tightness and ensure the subwoofer is securely mounted in its enclosure.
- Ambiente: Keep the subwoofer free from dust, debris, and direct sunlight, which can degrade materials over time.
7. Risoluzione di prublemi
If you experience issues with your Focal SUB 12 subwoofer, refer to the following common problems and solutions:
| Prublemu | Causa Possibile | Soluzione |
|---|---|---|
| Nisun sonu da u subwoofer |
|
|
| Bassi distorti o pocu chjari |
|
|
| U subwoofer si spegne à intermittenza |
|
|
If these steps do not resolve the issue, contact Focal customer support or a qualified technician.
8. Specificazioni
| Feature | Specificazione |
|---|---|
| Nome di mudellu | SUB12 |
| Tipu di parlante | Subwoofer di cumpunenti |
| Diametru di u subwoofer | 12 pollici (30 centimetri) |
| Impedenza nominale | Single 4-Ohm |
| Gestione di l'energia RMS | 300 W |
| Manipulazione Massima di Potenza | 600 W |
| Tecnulugia di cunnessione | Wired |
| Dimensioni di u produttu (P x L x A) | 18" x 8" x 14" (Approssimativu) |
| Pesu di l'articulu | 11 liri (5 chilògrammi) |
| Cumpunenti inclusi | SUB12 |
| U fabricatore | Focal |
| Tipu di muntatura | Scorri à u monte |
| Impermeabile | Innò |
9. Garanzia infurmazione
Focal products are designed and manufactured to the highest quality standards. This product is covered by a limited warranty against defects in materials and workmanship under normal use. 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, please refer to the warranty card included with your product or visit the official Focal websitu.
10. Supportu
For technical assistance, troubleshooting, or further inquiries regarding your Focal SUB 12 subwoofer, please contact Focal customer support or your authorized Focal dealer.
You can find contact information and additional resources on the official Focal websitu: www.focal.com





