Focal K2 Power M SUB 5 KM M Profile Sandwich Cone 5.75 Inch Subwoofer 200w RMS
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The Focal K2 Power M SUB 5 KM is a 5¾-inch (145mm) subwoofer from Focal's K2 Power M range, rated at 200W RMS. It features an M-profile aramid fibre K2 sandwich cone and a shallow 69mm depth, making it suited to compact sealed-box installs.
Key specifications
- Type: subwoofer driver
- Size: 5¾" (145mm)
- Depth: 2⅜" (69mm)
- Power handling: 200W RMS, 400W maximum
- Sensitivity: 86dB (2.83V/1m)
- Frequency response: 35Hz – 250Hz
- Impedance: 4 ohms
- Sealed enclosure: 4L (F-3dB 41Hz) or 6L (F-3dB 39Hz)
K2 Power SUB 5 KM
Like all drivers in the K2 Power M range, the 5 KM is fitted with Focal's aramid fibre K2 sandwich cone paired with an M-profile shape. The M-profile improves frequency response and sound dispersion while reducing driver depth — complementing the dynamics and power of the K2 cone.
The K2 Power M range is designed to let you build a bespoke "à la carte" audio system. The products are compact enough for straightforward installation in most vehicle cabins.
Key points
- Exclusive, patented Focal technologies
- Compact dimensions with exceptional power handling
- Active product
- Aluminium grille (optional)
Sound precision and dynamics
The aramid fibre K2 sandwich cone is manufactured in Focal's own workshops. It consists of an ultralight foam core sandwiched between a layer of aramid fibres and a layer of glass fibres — combining rigidity, lightness and damping for precise, dynamic sound.
Sound dispersion
The M-profile combined with the K2 sandwich cone delivers improved frequency response and sound dispersion, and reduces driver depth without compromising the K2 sound signature.
Bespoke system
Like the Utopia M line, the K2 Power M range supports an "à la carte" approach. Installers can select from the available drivers to build a fully bespoke system to their own specification.
Explore the full range in Focal K2 Power M.
Specification
| Cone | K2 Sandwich, M-profile |
|---|---|
| Sensitivity | (2.83V/1m) 86dB |
| Frequency response | 35Hz - 250Hz |
| Impedance | 4Ω |
| Magnet | Ferrite |
More specs
| |
What's Included
- K2 Power M 5 KM
- Screws and Fixings
- Manual
Focal
About the Focal SUB-5KM-K2M
From our tech experts at CEN
A Focal K2 Power 5.75 inch subwoofer, handling 200w 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.
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Fitted at our workshop
Bring it to our Beeston workshop and we do the rest.
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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 enclosure does the SUB 5 KM need?
A: Focal lists sealed enclosure options of 4 litres (F-3dB 41Hz) and 6 litres (F-3dB 39Hz).
Q: How deep is the Focal SUB 5 KM?
A: The SUB 5 KM has a depth of 2 3/8 inches (69mm).
Q: What impedance is the SUB 5 KM?
A: The SUB 5 KM has a 4 ohm impedance.
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