






Focal Sub 12 Performance Dual Voice Coil 12 Inch 2 Ohm Car Subwoofer 300w RMS
Couldn't Load Pickup availability
The Focal Sub 12 Dual is a 12 inch (30 cm) dual voice coil car subwoofer from Focal's Subwoofer Line, rated at 300W RMS (600W max). Its 4 + 4 ohm voice coils can be wired in parallel for 2 ohm operation, letting your amplifier deliver maximum power.
This is the dual voice coil version. The Focal Sub 12 is also available as the SUB 12 single voice coil 4 ohm and the shallow SUB 12 Slim. The matching Focal 12 inch subwoofer grill fits all three.
Key specifications
- Size: 12 inch / 30 cm
- Power handling: 300W RMS, 600W max
- Impedance: 4 + 4 ohm dual voice coil (2 ohm in parallel)
- Sensitivity: 88 dB
- Cone: polypropylene with butyl surround
- Chassis: steel
- Enclosure: sealed from 15 L, bass-reflex from 30 L
Focal SUB 12 Dual: dual voice coil subwoofer, Subwoofer Line
Designed and developed in France, the Sub 12 Dual features a 12 inch (30 cm) polypropylene cone for powerful bass in any in-car audio system. The dual voice coil design allows parallel wiring at 2 ohm, letting you make full use of your amplifier's output.
- Deep, powerful bass
- Works in sealed or bass-reflex enclosures
- Sealed box from 15 L
- Bass-reflex box from 30 L
- Parallel voice coil connection for more SPL
- Steel chassis for robust construction
- Excellent power handling
Polypropylene cone
The polypropylene cone is rigid and resists distortion at high volumes — well suited to subwoofer use.
Simple connection
Screwable terminals make connecting the Sub 12 Dual to your audio system straightforward and secure.
Boosted bass
The polypropylene cone reproduces powerful low frequencies cleanly. Adding a subwoofer to an in-car system significantly improves overall sound quality, particularly dynamics.
Total compatibility
Compatible with all Focal Car Audio products, the Sub 12 Dual is particularly recommended to complement Auditor, Access, Universal, Polyglass and Slatefiber systems. It performs well in both sealed and bass-reflex enclosures.
Explore the full range in Focal Performance Subwoofers.
Specification
| Sensitivity | 88dB |
|---|---|
| Cone | Polypropylene |
| Surround | Butyl |
More specs
| |
What's Included
- Focal SUB 12 Dual Voice Coil
Focal
About the Focal SUB 12 DUAL
From our tech experts at CEN
A Focal Performance 12 inch subwoofer, dual voice coil 2 ohm, handling 300w RMS.
Who it suits
Drivers building a system where the bass has to keep pace with a capable front stage. Performance is where Focal starts to reward proper amplification.
Our tech experts advise
A subwoofer is only as good as its enclosure and the amplifier behind it: volume and tuning decide what you hear, and dual voice coils give you options for how it is wired. We build enclosures to suit both driver and vehicle at our Beeston workshop. Installation is priced per vehicle, so get in touch with your make, model and year and we will confirm what it needs. See car audio installation.
Explore the full Focal range at CEN, with fast UK dispatch and expert advice from our Nottingham team. Shop all Focal
Recommended For You
Discover more top-rated gear, handpicked to go with what you're viewing

Have it Fitted By Our Team
Our team fits car audio, stereos, dash cams and vehicle security at our workshop in Beeston, Nottingham. Tell us your vehicle and we'll confirm the parts and a fitted price.
- 1
Tell us your vehicle
Make, model and year, and what you'd like fitted.
- 2
We confirm the parts
Fascia, wiring and interfaces checked for your car, with a fitted price.
- 3
Fitted at our workshop
Bring it to our Beeston workshop and we do the rest.
Unit 25 Technology Drive, Beeston, Nottingham NG9 1LA
Focal Car Audio
To combine the pleasure of driving with the love of sound, make sure your car is fitted with quality hi-fi equipment. Focal high-fidelity sound promises sensational musical emotions to enhance every journey.
Speaker Kits
With Focal's dedicated car speakers, take advantage of a wide choice of models to compose your own customized audio system, according to your vehicle and your desires. From the Focal discovery with the Universal range to the Utopia M excellence, listening in the car takes on a whole new dimension
Subwoofer
Choose one of Focal's subwoofers (passive, active, bass-reflex, ultra-flat...) and bring powerful, deep bass. Offering a variety of models in different formats, our range meets every installation need and is the ideal audio complement.
DSP & Amplifiers
To optimize the sound quality of your installation and enhance in-car listening, we offer a range of amplifiers and DSPs to match your loudspeakers. These Focal electronics let you experience the sensations of precise, controlled and stable sound.
Accessories & Cables
Discover Focal's range of amplifiers and cables for a complete solution. As a complement to your installation, amplifiers let you experience the sensations of precise, controlled sound, and cables answer questions linked to amplification and connections between components.
Focal Car Audio
Deliver exceptional sound clarity and precision for your vehicle
Frequently Asked Questions
Q: Do I need an amplifier for this subwoofer?
A: Yes, unless it is an active (powered) subwoofer with a built-in amplifier. Passive subwoofers need an external amplifier matched to the RMS power and impedance shown in the Specification tab.
Q: What size enclosure does this subwoofer need?
A: The recommended enclosure volume is listed in the Specification tab where the manufacturer provides it. As a rule, sealed enclosures give tighter, more accurate bass while ported enclosures deliver more output. Contact CEN if you would like a recommendation for your build.
Q: What does RMS power mean?
A: RMS is the continuous power a subwoofer can handle, and it is the number that matters when matching an amplifier. Peak or max figures describe short bursts only. Match your amplifier output to the RMS rating in the Specification tab.
Q: Sealed or ported enclosure - which should I choose?
A: Sealed boxes are compact and produce tight, controlled bass suited to sound quality builds. Ported boxes are larger and produce more output at low frequencies, suited to those who want maximum impact. Either works well when built to the recommended volume.
Q: Can CEN build or supply an enclosure and fit everything?
A: Yes. CEN supplies enclosures and offers professional installation from our Nottingham premises, including amplifier wiring. Contact us to discuss your build.
Q: Can the Focal SUB 12 Dual run at 2 ohms?
A: Yes. It has two 4 ohm voice coils (4 + 4 ohm). Wired in parallel, the subwoofer presents a 2 ohm load for more SPL from a suitable amplifier.
Q: What box does the Focal SUB 12 Dual need?
A: Focal states it works in a sealed box from 15 litres or a bass-reflex (ported) box from 30 litres.
Q: How much power can the SUB 12 Dual handle?
A: It is rated at 300W RMS nominal power and 600W maximum power, with a sensitivity of 88 dB.
Not Sure Where to Start?
Straightforward advice and the latest news from our Nottingham team.
All Guides and News →
Car Audio
Christmas Gift Guide 2026: Car Audio, Dash Cams and Outdoor Tech
Read the guide →
Car Audio
Upgrading Car Audio Without Replacing the Factory Stereo
Read the guide →
Car Audio
Amplifier Wiring Kits Explained: Gauge, Fuses and Earths
Read the guide →
Car Audio
New at CEN: Option Audio Drive-10Flat — Golf Mk8 Bass, Zero Boot Space Lost
Read more →
Car Audio
Car Speaker Sizes Explained: What Fits Your Car
Read the guide →
Car Audio
Alpine iLX-F905D Halo9 Review: The Big-Screen Upgrade for Almost Any Car
Read more →









































