Focal IS BMW 100K Inside Series Direct Fit Premium BMW Mini Component Speakers
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The Focal IS BMW 100K is a 4" (100mm) 2-way component speaker kit from Focal's Inside Series, designed as a direct-fit upgrade for select BMW and Mini models. It uses Focal's K2 aramid fibre sandwich cone and TKM inverted dome tweeter, rated at 60W RMS, and installs via a dedicated plug-and-play connector.
Focal Inside kits are matched to specific vehicles. Check compatibility by contacting CEN or using the Focal Inside website before ordering. The Inside Series for BMW and Mini is also available as the Focal IC BMW 100L, a coaxial option for select fitments.
Key specifications
- Size: 4" (100mm) woofer
- Type: 2-way component kit, separate crossover
- Power handling: 60W RMS (120W max)
- Sensitivity (2.83V/1m): 83.5 dB
- Frequency response: 80Hz – 22kHz
- Impedance: 4 ohms
- Mounting depth: 1 5/8" (41mm)
- Cone: K2 aramid fibre sandwich, neodymium magnet
- Tweeter: TKM "M" profile aramid fibre inverted dome
Premium 2-way component kit for BMW
A direct-fit component speaker upgrade designed specifically for BMW and Mini, using Focal's K2 technology for the best balance between weight, rigidity and damping.
Our BMW Plug & Play offering is complemented by two premium kits
The K2 aramid fibre cone delivers power and depth, while the 'M' profile inverted dome TKM tweeter reproduces high frequencies up to 22kHz for precise, smooth treble.
Focal Inside for BMW & Mini
- Developed and manufactured in France
- Quick DIY installation
- Seamless cabin integration
- High-quality soundstage
- Dedicated plug-and-play connector
Explore the full range in Mini Speaker Upgrades.
Specification
| Magnet | Neodymium |
|---|---|
| Cone | Sandwich K2 cone |
| Sensitivity | (2.83 V/1 m) 83.5 dB |
| Frequency response | 80 Hz - 22 kHz |
More specs
| |
What's Included
- Focal IS BMW 100K
Focal
About the Focal IS BMW 100K
From our tech experts at CEN
The Focal IS BMW 100K is a 4" (100mm) 2-way component speaker kit from Focal's Inside Series. It uses a K2 aramid fibre sandwich cone woofer and TKM inverted dome tweeter, rated at 60W RMS with 4-ohm impedance. A dedicated plug-and-play connector makes it a direct-fit upgrade for select BMW and Mini models.
Who it suits
This kit suits BMW and Mini owners who want a clear step up from factory audio without complex wiring. The separate crossover and K2 cone deliver improved clarity and bass depth over standard speakers. Browse the full Focal collection for other Inside Series fitments.
Our tech experts advise
The IS BMW 100K fits select BMW and Mini models only — confirm compatibility before ordering, as Inside kits are vehicle-specific. Mounting depth is 41mm, so check door card clearance in your car. At 83.5 dB sensitivity and 4 ohms, it works well with a factory head unit. Installation is priced per vehicle; see our car audio installation page to arrange fitting.
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.
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Plug & Play Kits
Configure the solution best suited to your needs in just a few clicks.
Focal Inside Series
The Focal Inside offer is aimed at all drivers wishing to replace their car's original system with a hi-fi quality Plug & Play solution that integrates easily, without modifying the interior. Different configurations are available by brand (over 50 brands), by car model (1000 vehicle models).
Focal Car Audio
Deliver exceptional sound clarity and precision for your vehicle.
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Frequently Asked Questions
Q: Will these speakers fit my car?
A: Most car speakers are standard sizes, but mounting depth and fitting rings vary by vehicle. Check the size in the Specification tab against your vehicle, or contact CEN with your registration and we will confirm fitment and any adapters or fitting kits you need.
Q: Do I need an amplifier to run these speakers?
A: Not always. Most speakers will run from a standard head unit, but a dedicated amplifier lets them perform at their best, particularly for component sets and higher power handling models. The RMS figure in the Specification tab is the guide to how much clean power they can use.
Q: What is the difference between coaxial and component speakers?
A: Coaxial speakers combine the tweeter and woofer in one unit for a simple like-for-like upgrade. Component sets separate the tweeter and woofer with a crossover for better imaging and detail, and suit installs where sound quality is the priority.
Q: Do these come as a pair?
A: Unless stated otherwise, car speakers are sold in pairs. Check the product title and What's Included tab, which lists exactly what is in the box.
Q: Can CEN fit these speakers for me?
A: Yes. CEN offers professional installation from our Nottingham premises. Contact us to book an installation slot or ask for a fitting quote.
Q: What is the difference between the Focal IS BMW 100K and IS BMW 100KL?
A: Both are premium K2 4 inch component kits rated at 60W RMS. Focal lists the IS BMW 100K with a 41mm mounting depth and 83.5 dB sensitivity, and the IS BMW 100KL with a 36mm mounting depth and 84 dB. Contact CEN with your registration to confirm which suits your BMW or Mini.
Q: What cone does the Focal IS BMW 100K use?
A: It uses Focal's aramid fibre K2 sandwich cone, which balances weight, rigidity and damping, with an M profile TKM inverted dome tweeter that reaches 22 kHz.
Q: Does the Focal IS BMW 100K need any wiring modifications?
A: No. It uses a dedicated manufacturer plug and play connector and is designed for quick, do it yourself installation.
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