Skip to Product Info
    • car 100mm | 4" speaker
    • car 100mm | 4" speaker
    • car 100mm | 4" speaker

    HELIX Ci3 M100FM-S3 - 4" Midrange Speaker Pair, FlexMount

    Regular Price $325.00

    Ships in 3-5 business days once ordered from our supplier.

    Payment & Security

    Your payment information is processed securely. We don't store or have access to your credit card details.

    • American Express
    • Apple Pay
    • Google Pay
    • Mastercard
    • PayPal
    • Shop Pay
    • Union Pay
    • Visa
    car 100mm | 4" speaker
    HELIX Ci3 M100FM-S3 - 4" Midrange Speaker Pair, FlexMount
    $325.00
    🚚

    Free Shipping

    Free delivery on orders over $100.

    🦘

    100% Australian Owned & Run

    Dispatching daily from our local warehouse.

    🛡️

    1-Year Warranty

    Full local support & coverage.

    🔄

    30-Day Free Returns

    Love your new sound or send it back.

    Product details:

    The HELIX Ci3 M100FM-S3 is a dedicated 100mm midrange driver built for 2-way and 3-way active or passive front stages, designed to run without a tweeter over its own dedicated band. FlexMount clearance lets it fit factory 4-inch locations, and it's the same driver used across HELIX's Ci3 K100.2FM-S3 component set and FX-MINI.2 crossover package, so it can be sourced separately for a custom build or as a replacement.

    Product specifications:

    • Series: Helix COMPOSE Ci3
    • Speaker type: Mid Range
    • Size: 100mm | 4"
    • Power handling RMS: 80W (120W max)
    • Sensitivity: 91 dB @ 2.83V/1m
    • Voice coil x impedance: 1 x 3Ω
    • Frequency response: 120 Hz – 6,000 Hz

    Dimensions: Outer diameter 98mm (3.86"), outer diameter with universal mounting ring 104.5mm (4.11"), installation diameter 89mm (3.50"), installation depth 30mm (1.18")

    Downloads: HELIX Ci3 M100FM-S3 — official datasheet (PDF)

    Manuals & Documents
    HELIX Ci3 M100FM-S3 — Official Datasheet (PDF) Download
    Service & Support

    Warranty

    This product is backed by a 12-month limited warranty, covering defects in materials and workmanship under normal use.

    Technical Assistance

    Our dedicated support team is available to assist with product setup, operation guidance, and troubleshooting. Contact us via email or phone for prompt service.

    Documentation & Downloads

    Access essential resources including the user manual, technical specifications, and safety instructions in our online support center.

    Replacement Parts & Accessories

    We offer a full range of genuine replacement parts, including batteries, chargers, and compatible accessories to ensure long-term performance.

    Training & Tutorials

    Browse our library of how-to videos and maintenance tips to get the most out of your cordless drill.

    Installing it yourself?

    Note: please read our DIY Install tips before purchasing. Most of our packages are plug and play and self-installable with no prior experience needed — but it's worth knowing what each stage involves first, including trim removal for Stage 3.

    Recently Viewed

    These will help make your car sound amazing - you won't want to leave the driver's seat!