Focal ICU 100 Universal 2 Way 4 Inch Coaxial Speakers 40w RMS Pair
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The Focal ICU 100 is a universal 2-way 4-inch (10cm) coaxial car speaker pair rated at 40W RMS, 90.3dB sensitivity, and a shallow 4.9cm mounting depth. It belongs to Focal's Universal ICU range and is designed as a straightforward, affordable upgrade over standard factory speakers.
Key specifications
- Size: 4" (10cm)
- Type: 2-way coaxial, integrated filter, sold as a pair
- Power handling: 40W RMS (80W max)
- Sensitivity: 90.3 dB
- Frequency response: 100Hz – 21kHz
- Impedance: 4 ohms
- Mounting depth: 4.9cm
- Membrane: Polyglass, butyl surround, ferrite motor
- Tweeter: aluminium/magnesium, Flat/High (+3 dB) level control
ICU 100: 2-way coaxial kit, 10cm woofer
The ICU 100 is a direct replacement for standard factory speakers. Its 4.9cm shallow depth, breakable fixings and integrated filter make it straightforward to fit in most vehicles. For vehicles requiring a vehicle-specific fit, Focal also offer solutions such as the Focal IC BMW 100L Inside Series for select BMW and MINI models.
Great reliability
The butyl surround is built to last, keeping the speakers performing well over time.
Optimised soundstage
The aluminium/magnesium tweeter includes a two-position Flat/High level control (+3 dB) to boost treble output — particularly useful when the speaker is mounted low in the door panel.
Explore the full range in Focal Universal.
Specification
| Product type | 2-way coaxial kit |
|---|---|
| Membrane | Polyglass |
| Tweeter | 100mm |
| Filter | Integrated |
| Frequency response | (+/- 3dB) |
| Maximum power | 80 watts |
| Motor | Ferrite |
| Nominal Impedance | 4 Ω |
| Nominal power | 40 W RMS |
| Sensitivity | 90.3 dB |
| Surround | material Butyl |
More specs
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What's Included
- 2 speaker drivers
- accessories
Focal
About the Focal ICU 100
From our tech experts at CEN
Focal 4 inch coaxial speakers, with the tweeter mounted in the centre of the woofer, rated at 40w RMS.
Who it suits
Drivers replacing tired factory speakers who want a clear improvement without relocating tweeters.
Our tech experts advise
Sizes, adapter rings and harnesses vary by vehicle, year and trim, so we confirm what your car takes before ordering. Door treatment matters as much as the speaker, and Focal drivers repay an amplifier. 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: 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: How deep are the Focal ICU 100 speakers?
A: The ICU 100 has a shallow mounting depth of 4.9cm, and breakable fixings help it fit a wide range of 4 inch (10cm) speaker locations.
Q: What does the Flat/High switch on the Focal ICU 100 do?
A: The tweeter has a two-position level control. The High setting adds +3 dB of treble, which is useful when the speaker is mounted low in the door.
Q: How much power do the Focal ICU 100 speakers handle?
A: Focal rates them at 40W RMS (80W max) at 4 ohms, with 90.3 dB sensitivity, so they work well from a head unit or a modest amplifier.
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