Focal SUB 25 KXE K2 Power Series 10 Inch 25cm Subwoofer Bass Driver 600w RMS
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The Focal SUB 25 KXE is a 10 inch (250mm) subwoofer from the K2 Power series, rated at 600W RMS. It features Focal's yellow K2 sandwich cone, dual 4 ohm voice coils, and is manufactured in France.
Short on mounting depth? The Focal SUB 25 KXS shallow 10 inch subwoofer has a slim 94mm profile.
Key specifications
- Size: 10" (250mm)
- Impedance: dual 4 ohm voice coils (4+4 ohm)
- Voice coil: 2 1/2" (65mm)
- Power handling: 600W RMS, 1,200W maximum
- Sensitivity: 84.5dB (2.83V/1m)
- Frequency response: 25Hz - 500Hz
- Depth: 6 3/4" (172mm)
- Cone: K2 sandwich
- Magnet: ferrite
K2 Power SUB 25 KXE
The SUB 25 KXE is a compact 25cm (10") bass driver built for high power handling and reliability. Like all K2 Power products, it is made in France and fitted with Focal's iconic yellow K2 membrane for precise, deep bass reproduction.
K2 signature
The K2 diaphragm is supported by a rubber surround with an exclusive profile optimised for very high travel. This combination delivers high-quality sound reproduction and is a core Focal innovation.
Robustness
The rigid, non-magnetic aluminium frame is specially designed for the K2 Power range. It improves coil excursion and allows the subwoofer to deliver taut, punchy bass.
Power
A Radial VC ventilation system keeps coil temperature in check, improving reliability and making the driver more dynamic for powerful, controlled output.
Explore the full range in Focal K2 Power.
Specification
| Impedance | Dual 4Ω (4+4Ω) |
|---|---|
| Sensitivity | (2.83V/1m) 84.5dB |
| Frequency response | 25Hz – 500Hz |
| Cone | K2 Sandwich |
| Voice coil | diameter 2 1/2" (65mm) |
| Magnet | Ferrite |
More specs
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What's Included
- Focal SUB 25 KXE
Focal
About the Focal SUB25KXE
From our tech experts at CEN
A Focal K2 Power 10 inch subwoofer, handling 600w RMS.
Who it suits
Drivers building a system where the bass has to keep pace with a capable front stage. K2 Power is Focal’s long-running aramid-fibre range, the one enthusiasts recognise by the yellow cone.
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: How much power does the SUB 25 KXE handle?
A: It is rated at 600W RMS and 1,200W maximum.
Q: How deep is the SUB 25 KXE?
A: The SUB 25 KXE has a depth of 6 3/4 inches (172mm).
Q: What is the frequency response of the SUB 25 KXE?
A: It is rated from 25Hz to 500Hz.
Q: What impedance is the Focal SUB 25 KXE?
A: It is a dual voice coil subwoofer rated by Focal at 4+4 ohms nominal impedance (3.2+3.2 ohms DC resistance), so the coils can be wired for a 2 ohm or 8 ohm load.
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