Reviews.io Car Audio Centre star rating on Reviews.io 

4.4/5 Rating

3K+ Reviews
Christmas sale
1 8

BLAM RELAX SFK-FOR4-RC165 Rear Door Coaxial Speaker Upgrade Kit for Ford C-Max (2003-2010)

BLAM  |  SKU: 132948
Model# SFK-FOR4-RC165
Barcode:
£131.50
Available to order. This item is held by our supplier. Order today and we'll dispatch it within 2 working days, usually delivered in 3 working days.
  • Free & Next-Day Delivery Available

    Delivered in 3 working days

  • Hassle-Free Returns Within 30 Days

    Hassle-Free Returns Within 30 Days

  • Free & Next-Day Delivery Available

    1 Year Warranty for Peaceful Ownership

Description


Transform the rear-door audio performance of your Ford C-Max (2003–2010) with this complete speaker upgrade kit designed for plug-and-play installation. The included BLAM Super Relax SR165C 6.5" (165 mm) Hi-efficiency 3 Ω coaxial speakers feature integrated 20 mm soft-dome tweeters for crisp treble and natural midrange tones, delivering a balanced and detailed sound experience.

The kit includes InCarTec adapter rings for secure mounting and speaker wiring adapter leads for simple connection to your factory wiring — no cutting or modifications required. Engineered for clarity and efficiency, the SR165C is ideal for use with factory head units or aftermarket car stereos. Designed in France by BLAM Audio, this system is trusted by car audio professionals and supplied in the UK by InCarTec, the official distributor for BLAM.

PLEASE NOTE: Only suitable for Ford C-Max (2003-2010) rear doors, for front doors please use SFK-FOR3-RC165


This complete speaker fitting kit includes:


BLAM SR165C 165mm Coaxial Speakers (Pair)

Upgrade your car audio with the BLAM SR165C 6.5″ coaxial speaker kit, part of the French brand’s esteemed Super Relax series. Designed for enthusiasts seeking high-performance sound, it delivers powerful dynamics thanks to its 150 W peak power and 75 W nominal power rating and a remarkably high sensitivity of 93 dB. Its frequency range of 60 Hz to 25 kHz ensures both deep mid-bass and crisp highs.
The woofer features a glass-fiber reinforced basket for rigidity, a treated cellulose pulp cone for natural sound reproduction, and a butyl suspension for durability under load. The tweeter is a 20 mm soft-dome unit powered by a neodymium (N38) motor, with an integrated 6 dB/octave high-pass filter to maintain clarity at high volumes.
This kit includes everything you need for an upgrade: the two 165 mm coaxial drivers (woofers with integrated tweeters), mounting screws, and instructions. With an impedance of 3 Ω, it works efficiently even with factory head units, making it ideal for both driver upgrades and more refined audio setups alike.

Designed in France by BLAM Audio, this system is trusted by global car audio professionals and supplied by InCarTec, the UK distributor for BLAM. InCarTec is trusted by car audio installers and website retailers alike.

SR165C Key Features

  • 165 mm (6.5″) 2-way coaxial speaker pair
  • Compact 48 mm mounting depth
  • 60 W RMS / 120 W max power handling
  • High efficiency (93.4 dB sensitivity)
  • Neodymium magnet motor
  • PEI dome tweeter for bright, detailed highs
  • Optimised for OEM upgrade with 3 Ω impedance

SR165C Technical Specifications


    2 165mm Woofers
    • Glass fiber reinforced composite salad bowl
    • High quality treated cellulose pulp membrane
    • All-round butyl suspension
    • Spider long life “Conex
    • 25 mm voice coil on Kapton former
    • Magnetic motor 85 x 17 mm
    • 5 mm magnetic circuit

    2 Coaxial tweeters
    • High-quality 20 mm coaxial soft-dome tweeter
    • N38 noedymium motor
    • Integrated high-pass filters 6 dB/octave

    Supplied in the box
    • 2 coaxial woofers with integrated capacitor
    • Mounting screws
    • Instructions for use

    Additional Information

    Delivery Information

    FREE UK delivery on orders over £50. Orders under £50 are just £4.99.

    Next Day delivery with DPD – order before 3pm
    Orders over £150: FREE next day delivery
    Orders under £150: just £4.99

    Saturday delivery with DPD: £9.99

    Next day and Saturday delivery exclude Northern Ireland, the Scottish Highlands and the Channel Islands.

    Refunds & Returns

    30-day hassle-free returns. Not happy with your purchase? Return it within 30 days of delivery for a full refund.

    Christmas gifts: returns are extended – orders placed now can be returned up to 8th January 2027.

    How to return: the product must be unused and in its original packaging. Contact our customer service team and we'll guide you through it and refund you promptly.

    Read our full returns & refund policy.