BMW dedicated coaxial speaker system

  • Focal IFBMW-C


  • Focal IFBMW-C


  • Focal IFBMW-C

  • Focal IFBMW-C


Our take on the Focal IFBMW-C

by Alexander Hrabe

Installation kit

BMW upgrade in about an hour

You love your BMW and you're not interested in replacing the factory receiver. Fair enough, but a sound upgrade is still possible, and it's oh-so-easy, thanks to Focal.

Read more

This IFBMW-C "Plug & Play" kit includes two 4'' 2-way speakers for select BMW X1 and Series 1, 3, and 5 models with speakers appearing only in the doors. Simply unfasten the door panels with the tools provided and remove the old speakers. The Focal speakers fit right into the factory locations and plug into the existing wiring, making installation a breeze.

What you're packin'

Each Focal coaxial speaker features a polyglass woofer for warm, natural sound, an inverted dome tweeter that delivers smoothness in the high frequencies, and a built-in passive crossover that provides seamless sound. Once these speakers are installed, you'll experience better clarity in vocals, punchier midrange, and more detailed bass lines — all without having to cut new holes or run new wiring.

Even better with aftermarket power

Focal designed this set of speakers to deliver superb sound, even when powered by the factory radio. But this system handles up to 40 watts RMS, so an aftermarket car stereo or an external amplifier will make these speakers sound even better.


    • two 4" coaxial speakers plus installation tools and clips
    • designed specifically for BMWs with speakers only in the doors
    • 100% plug and play in select BMW models makes for quick installation
    • significant results even without changing the OEM system
    • works with factory radio, aftermarket receiver, or outboard amp
    • 2-40 watts RMS power range (80 watts peak)
    • frequency response: 85-22,000 Hz
    • impedance: 4 ohms
    • sensitivity: 90.5 dB
    Other info:

    Hands-on research from the Crutchfield Labs (what are the Labs?)

    Features and Specs
    Speaker Size FOCALBMW1
    Design 2-way
    Tweeter Design Inverted Dome
    Tweeter Composition Aluminum/Magnesium
    Woofer Composition Polyglass
    Woofer Surround Butyl Rubber
    Parts Warranty 1 Year
    Labor Warranty 1 Year
    Sensitivity 90.5 dB
    Frequency Response 85 - 22k Hz
    RMS Power Range (Watts) 2-40
    Peak Power Handling (Watts) 80
    Impedance (Ohms) 4
    Top-mount Depth (Inches) N/A
    Bottom-mount Depth (Inches) 1 15/16
    Cutout Diameter or Length (inches) 4 1/16
    Product Research
    What's in the box?

    Download owner's manual

    • Two 2-way speakers
    • Two 36" Lengths of speaker wire (each connects a speaker to the factory wiring)
    • 4 Replacement door panel clips (use if needed)
    • Torx key
    • Panel removal tool
    • Four 3/8" Screws
    • Two 11" Zip ties
    • Vehicle specific installation instructions (English/ French)
    • Focal window sticker
    • Serial number card

    Our Product Research Team

    At Crutchfield, you'll get detailed, accurate information that's hard to find elsewhere. That's because we have our own in-house Product Research team — they open the box, verify contents, check the owner's manual, and record dimensions, features and specs. We stay on top of new products and technologies to help people make informed choices.


    Polyglass Cone: The woofer cone has a cellulose pulp base and is coated with a uniform deposit of hollow glass microballs. The addition of the Polyglass layer significantly increases the cone's rigidity without adding much weight. This combination takes advantage of the accuracy and neutrality of the hard outer surface, but maintains the superior damping characteristics of the cellulose pulp.

    Surround: The woofers' rubber surrounds are resistant to ultraviolet rays, temperature extremes, and humidity, adding to the system's reliability and longevity.

    Inverted Dome Tweeter: The tweeters are inverted aluminum and magnesium domes, producing a broad sound stage.

    Crossovers: The included speaker wire has in-line crossovers for the woofers and tweeters. The crossover slopes are 18 dB/octave and the crossover point is 4 kHz.


    Product reviews from the Crutchfield Labs (what are the Labs?)

    Custom-fit speaker upgrades from Focal

    Custom-fit speaker upgrades from Focal

    by Buck Pomerantz
    Custom-fit speaker upgrades from Focal

    Russ, a Crutchfield employee, didn't like the lack of bass and poor high-frequency clarity in the "premium" system of his 2008 BMW 335i. He decided to try the Focal IFBMW-S and IFBMW-C custom-fit...

    Review this product
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    Focal IFBMW-C Reviews

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    5 out of 5

    Focal IFBMW-C BMW 335M

    Written By Jerry, Puerto Rico on Tuesday, March 25, 2014
    Crutchfield Customer Review (What's this?)
    The Focal IFBMW-C is factory replacement Fit. But the sound is Superior. Top High Fidelity sound. Super Clear Clean Tweeters. Excellent Mid Base.
    The sound is the best, Factory fit. No mods required . Superior sound. Pure Fidelity.
    The Price.... $$$$
    1 out of 1 people found this helpful
    Was this review helpful?    Yes | No

    1 question already asked

    I am purchasing the S version of these for my Harman Kardon BMW, and I'm hoping one of these ifbmw-c speakers will fit in the center channel location, will this work for me? Thanks Shane [ Shane  Apr 14, 2014 ]
    1 answer
    • For details on fit or installation please contact an Advisor by phone (1-800-324-9695) or online chat. They will be able to pull up your vehicle and give you the details on if this will fit and what you will need for an installation in your vehicle. [ Krissy Staff  Apr 14, 2014 ]

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    For a more in-depth review and enhanced detailed information on the Focal IFBMW-C, please visit the Crutchfield website product page (/ISEO-rccbcspd/p_091IFBMWC/Focal-IFBMW-C.html ).