

Focal IS BMW 100KL Inside Series Direct Fit Premium BMW Mini Component Speakers
Couldn't Load Pickup availability
The Focal IS BMW 100KL is a 4" (100mm) 2-way component speaker kit from the Inside Series, designed as a direct-fit upgrade for select BMW and Mini models. It features a K2 aramid fibre sandwich cone, TKM inverted dome tweeter, 60W RMS power handling, and a shallow 36mm mounting depth with a dedicated plug-and-play connector.
This listing is the IS BMW 100KL (36mm mounting depth). The Inside Series BMW kit is also available as the Focal IC BMW 100L coaxial version for compatible vehicles.
Focal Inside kits are matched to specific vehicles. Check compatibility by contacting CEN or using the Focal Inside website before ordering. CEN can also confirm whether the IS BMW 100KL or its companion kit with a 41mm mounting depth better suits your car.
Key specifications
- Size: 4" (100mm) woofer
- Type: 2-way component kit, separate crossover
- Power handling: 60W RMS (120W max)
- Sensitivity (2.83V/1m): 84 dB
- Frequency response: 80Hz – 22kHz
- Impedance: 4 ohms
- Mounting depth: 36mm (1 7/16")
- Cone: K2 sandwich, neodymium magnet
- Tweeter: TKM "M" profile aramid fibre inverted dome
Premium 2-way component kit for BMW
A direct-fit component speaker upgrade for BMW and Mini, designed to slot in without cutting or adapting.
Our BMW Plug & Play offering is complemented by two premium kits
Both kits use Focal's aramid fibre K2 cone, balancing weight, rigidity and damping for power and depth across the frequency range.
The 'M' profile inverted dome TKM tweeter reproduces high frequencies up to 22kHz, delivering precise and smooth treble.
Focal Inside for BMW & Mini
- Developed and manufactured in France
- DIY quick installation
- Seamless integration into the cabin
- High-quality soundstage
- Dedicated manufacturer 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) 84 dB |
| Frequency response | 80 Hz - 22 kHz |
More specs
| |
What's Included
- Focal IS BMW 100KL
Focal
About the Focal IS BMW 100KL
From our tech experts at CEN
The Focal IS BMW 100KL is a 4" 2-way component speaker kit from the Inside Series, designed as a direct-fit upgrade for select BMW and Mini models. It uses a K2 aramid fibre sandwich cone and TKM inverted dome tweeter, handling 60W RMS, with a 36mm mounting depth and a dedicated plug-and-play connector. A companion version with 41mm mounting depth is also available for certain vehicles.
Who it suits
This kit suits BMW and Mini owners who want a sound quality upgrade without cutting or adapting their car's interior. The plug-and-play, direct-fit design makes it a practical choice for a confident DIY installer. For more from Focal's car audio range, browse the Focal collection.
Our tech experts advise
Compatibility varies by vehicle and trim level, so verify your model is supported before ordering — contact CEN or use the Focal Inside website to check. Confirm whether the 36mm or 41mm depth version suits your specific car before purchasing. Professional fitting is priced per vehicle; see our Nottingham car audio installation page for details.
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

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.
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 100KL and IS BMW 100K?
A: Both are premium K2 4 inch component kits rated at 60W RMS. Focal lists the IS BMW 100KL with a 36mm mounting depth and 84 dB sensitivity, and the IS BMW 100K with a 41mm mounting depth and 83.5 dB. Contact CEN with your registration to confirm which suits your BMW or Mini.
Q: What cone does the Focal IS BMW 100KL 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 100KL need any wiring modifications?
A: No. It uses a dedicated manufacturer plug and play connector and is designed for quick, do it yourself installation.
Not Sure Where to Start?
Straightforward advice and the latest news from our Nottingham team.
All Guides and News →
Car Audio
Pioneer Perfect Fit 9-Inch Stereos: Fitting Kits and Every Car They Fit (2026)
Read the guide →
Car Audio
BMW Speaker Upgrades Explained: Where to Start and What Fits
Read the guide →
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 →















































