C 165 SF

165 mm coaxial kit

$515.00

(Price per Pair)

Key Features & Specifications

Key Features

  • 165 mm / 6.5″ 2-way coaxial speaker kit
  • French-made Focal Slatefiber woofer cone
  • Al/Mg inverted dome tweeter
  • Clear, powerful and balanced sound reproduction
  • Strong mid-bass and detailed midrange performance
  • Refined treble with wide dispersion
  • 80W RMS / 160W maximum power handling
  • 4Ω impedance
  • 91 dB sensitivity
  • 60 Hz – 21 kHz frequency response
  • Butyl surround for durability and control
  • Ferrite motor
  • 70 mm mounting depth
  • Grilles included
  • Supplied with screws and mounting brackets
  • Ideal for premium factory speaker upgrades

Sound Acoustics

  • Product type : 2-way coaxial kit
  • Membrane :Slatefiber
  • Woofer : 165 mm
  • Coil diameter : 25 mm
  • Tweeter :Al/Mg inverted dome tweeter
  • Frequency response (+/- 3dB) :60 Hz – 21 kHz
  • Impedance : 4 Ω
  • Maximum power : 160 W
  • Motor : Ferrite
  • Nominal power : 80 W RMS
  • Sensitivity : 91 dB
  • Surround material : Butyl
  • Nominal power : 80 W RMS
  • Sensitivity : 91 dB
  • Surround material : Butyl

Sound Electronics

  • Maximum power : 160 W
  • Nominal power : 80 W RMS

Design

  • Depth : 70 mm / 2.76 in
  • Cut-Out diameter : 165 mm / 6.5 in

Accessories

  • Grilles : Provided
  • Supplied with screws and mounting brackets : Yes

Grilles

Included

Why Choose Focal Australia

Click & Collect Available

Click & Collect available from participating Authorised Focal Australia Dealers.

Official Australian Stock

Official Australian stock supplied through the Authorised Focal Australia Dealer Network.

Vehicle-Specific Solutions

Vehicle-specific installation solutions available for thousands of vehicles.

Nationwide Authorised Dealers

Nationwide Authorised Dealer Network for sales, advice, installation and after-sales support.

Australia-Wide Shipping

Australia-wide shipping available through our network of Authorised Focal Australia Dealers.

12-Month Australian Warranty

Backed by a 12-month Australian warranty, extended to 3 years when installed by an Authorised Focal Australia Dealer.

Expert Installation Available

Expert installation available through our Australia-wide Authorised Dealer Network.

Technologies

SLATEFIBER MEMBRANE

Dynamic, balanced sound

Exclusive to Focal and made in France, the Slatefiber membrane is made from recycled carbon fiber and thermoplastic polymer. In their quest for perfection and as specialists in loudspeaker membranes, our engineers have chosen to use non-woven carbon fibers in this case.es in the same direction to achieve even greater rigidity, damping and lightness, the “essentials” of a good loudspeaker. Renowned for its dynamic, rich and balanced sound reproduction, this membrane has proved its worth on numerous products for the home, for professionals in recording studios, and also for listening in the car.

TWEETER IN AL/MG

Treble finesse

Membrane shape and materials are essential. For the finest treble, our engineers have patented the inverted dome tweeter, a Focal signature. The inverted dome shape offers the advantage of low directionality and a small-diameter, lightweight coil for better acceleration. As for the materials used, they combine the key points of a good loudspeaker: aluminum increases dome rigidity and reduces distortion, while the addition of magnesium provides excellent damping. The surround that connects the dome to its support uses Poron, a shape-memory material. This surround is derived from the famous Utopia Beryllium tweeter, and reduces distortion by a factor of three between 2000 Hz and 3000 Hz, where the ear is most sensitive.

Discover

Focal C 165 SF 6.5″ Slatefiber Coaxial Speakers

The Focal C 165 SF is a premium 165 mm 2-way coaxial speaker kit designed for drivers who want a serious sound upgrade without moving to a full component speaker installation. Built as part of Focal’s Slatefiber range, this coaxial kit combines a Slatefiber woofer cone with an aluminium/magnesium inverted dome tweeter to deliver clear, powerful and balanced sound reproduction.

The Slatefiber cone is made in France using recycled carbon fibres and thermoplastic polymer, giving the speaker the rigidity, lightness and damping needed for accurate audio performance. This helps the Focal C 165 SF reproduce clean midrange detail, controlled mid-bass and natural vocal clarity, making everyday listening more precise and enjoyable.

Its integrated Al/Mg inverted dome tweeter delivers refined high-frequency detail with wide dispersion, helping create a more open and detailed sound inside the vehicle. Because the tweeter is built into the coaxial design, the C 165 SF is a practical option for many factory speaker locations where simple integration and improved performance are both important.

With 80W RMS power handling, 160W maximum power, 4Ω impedance and 91 dB sensitivity, the Focal C 165 SF is engineered to perform well with a quality amplifier or upgraded car audio system. The butyl surround, ferrite motor and durable aluminium chassis support long-term reliability, while the supplied grilles, screws and mounting brackets make installation easier across a wide range of vehicles.

For anyone looking to upgrade factory car speakers with a clean, dynamic and premium coaxial solution, the Focal C 165 SF is an excellent choice from the Slatefiber speaker range.

Video

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10 Reasons Focal Stands Apart

For more than four decades, Focal has combined French acoustic engineering, innovative speaker technologies and premium materials to create exceptional car audio systems.

Discover the engineering, heritage and technology behind one of the world’s leading car audio brands.

Explore the Top 10 Reasons to Choose Focal Car Audio