Focal Sub 10 Performance Single Voice Coil 10 Inch 4 Ohm Car Subwoofer 250w RMS
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The Focal SUB 10 is a 10 inch (25 cm) single voice coil 4 ohm car subwoofer from Focal's Subwoofer Line, rated at 250W RMS (500W max). Its polypropylene cone and steel chassis deliver deep, powerful bass in either a sealed or bass-reflex enclosure.
This listing is the single voice coil 4 ohm version. The SUB 10 is also available as the SUB 10 Dual Voice Coil and the SUB 10 Slim. The matching Focal 10 inch subwoofer grill fits all three.
Key specifications
- Size: 10 inch / 25 cm
- Power handling: 250W RMS, 500W max
- Impedance: 4 ohm single voice coil
- Sensitivity: 85 dB
- Cone: polypropylene with butyl surround
- Chassis: steel
- Enclosure: sealed from 10 L, bass-reflex from 25 L
Focal SUB 10: single voice coil subwoofer, Subwoofer Line
Designed and developed in France, the SUB 10 features a 10 inch (25 cm) polypropylene cone and a single voice coil architecture for straightforward wiring and reliable bass output.
- Deep and powerful bass
- Works in sealed boxes from 10 L or bass-reflex boxes from 25 L
- Steel chassis for robust build quality
- 250W RMS power handling
Polypropylene cone
The polypropylene cone provides high rigidity, reducing distortion at loud volumes — well suited to subwoofer use.
Simple connection
Screwable terminals make connecting the SUB 10 to your audio system straightforward and secure.
Boosted bass
The polypropylene cone reproduces powerful low frequencies effectively. 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 10 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 | 85dB |
|---|---|
| Cone | Polypropylene |
| Surround | Butyl |
More specs
| |
What's Included
- Focal SUB 10
Focal
About the Focal SUB 10
From our tech experts at CEN
A Focal Performance 10 inch subwoofer, 4 ohm, handling 250w 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. 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
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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
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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: What impedance is the Focal SUB 10?
A: The SUB 10 is a single voice coil subwoofer with a nominal impedance of 4 ohms.
Q: What box does the Focal SUB 10 need?
A: Focal states it works in a sealed box from 10 litres or a bass-reflex (ported) box from 25 litres.
Q: How much power can the Focal SUB 10 handle?
A: It is rated at 250W RMS nominal power and 500W maximum power, with a sensitivity of 85 dB.
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