Focal 2 Way Component Car Door Speakers With Under Seat 20cm 8" Active Subwoofer

Product Code
ISU165 + iBus 2.1
In Stock
Estimated Delivery
Next Day Available
Next Working day delivery are sent by DPD Courier company for main land UK deliveries which is normally next working day (which does not include Saturday/Sunday or Bank Holidays).

Orders need to be placed before 3pm to qualify for next working day delivery. We also offer a 2 workding day service by Royal Mail (Priced at £4.95) as well.

Northern Island, the Isles and some Scottish postcodes are charged more and delivery could take longer.
(UK) Domestic Only
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Package Included:

  • Focal Integration ISU165 6.5" 16.5cm 2 Way Component Car Door 70W Speakers
  • Focal iBus 2.1 20cm 8" Under Seat Active Subwoofer, Active Bass Tube 2.1 System


This ISU165 2-way separate kit is the result of research into the constraints associated with using original-fit locations. Truly compact, powerful and "fits-anywhere", the ISU165 makes it possible to improve on audio systems without major technical modifications to your vehicle interior. Its very compact form, achieved by reducing its housing depth, and its built-in filters mean that this kit is easy to fit and connect to your original-fit head unit.

The new generation Universal comes with its innovations and new features, including a new inverted aluminium/magnesium tweeter for even more detailed trebles. A new chassis has also been designed for optimal integration and a more elegant design. And all this is with just one objective: to offer easy-fit products that conserve excellent sound.

Shallow fitting: 48.9 mm.

Natural, Uncoloured Sound
The Integration range is synonymous not only with ease of installation but also and most especially, with sound quality. At Focal we pride ourselves in supplying equipment of impeccable quality: for example, a polyglass membrane for natural, uncoloured sound and an inverted dome aluminium/magnesium tweeter for clear, detailed reproduction.

Reliability A Top Priority
The Focal spirit also encompasses the reliability of our ever evolving technological equipment. Butyl suspension ensures that your speakers will stand the test of time. You will be able to enjoy the Focal sound for a long time, thanks to our high quality design: manufacturing processes and the choice of materials are always high priorities for our engineers, guaranteeing a result that exceeds your expectations.

What Makes It Special

  • High sensitivity
  • No-fuss treble adjustment
  • Shallow fitting
  • Improves on original-fit speakers
  • Dynamism and neutrality


  • High sensitivity
  • Shallow mounting depth (129/32" - 48.4mm)
  • Dynamics and neutrality
  • 2 types of tweeter mounts
  • Compact tweeter

Technical Characteristics

  • Woofer: 61/2" (165mm)
  • Voice coil diameter: 1" (25mm)
  • Max. power: 140W
  • Nom. power: 70W RMS
  • Sensitivity (2.83V/1m): 93dB
  • Frequency response: 60Hz-21kHz
  • Al/Mg inverted dome tweeter
  • Accessories: delivered without grilles
  • Integrated crossover: 6dB/oct


  • Nominal power 70W RMS
  • Maximum power 140W
  • Sensitivity (2,83V/1m) 93dB
  • Frequency response 60Hz-21kHz
  • Cone type Polyglass
  • Surround type Butyl
  • Nom. impedance 4Ω
  • VC diameter 25mm 1"
  • Net weight 750g 1.6lbs

Focal iBus 2.1 20cm 8" Under Seat Active Subwoofer, Active Bass Tube 2.1 System

Focal iBus 2.1 Features:

  • Flat subwoofer enclosure with 2-channel amplifier
  • A real 2.1 system
  • ISO Plug & Play cable provided (direct connection to ISO head unit]
  • Easy installation under car seat (takes up little space]
  • Intensifies the bass of your audio system
  • Powerful amplification solution (allowing you to keep the ergonomics of your original source without loosing display or control functions]
  • Recreate a high-performance 2.1 system in your car

Focal iBus 2.1 Specifications:

  • Flat active subwoofer enclosure (20cm/8") + 2-channel amplifier     
  • Subwoofer power 150W max / 75W RMS     
  • Subwoofer frequency response 45Hz - 150Hz     
  • 2-channel amplifier power 2x110W Max / 2x55W RMS     
  • 2-channel amplifier frequency response  55Hz - 55KHz     
  • Impedance 4 Ohms (Warning: not stable under 2 Ohms so not to be installed in parallel with a second kit]     
  • Cable power Directly from battery thanks to the power cable 5m x 3.30mm2 (included)     
  • Signal cable  ISO Plug & Play cable: 3m (included)     
  • SNR  > 80dBA     
  • THD  < 0.08 %     
  • Dimensions ( H x W x D)    2.8" x 13.5" x 9.8" - (71.5 x 344 x 250mm)

We always recommends that you have your installation carried out by a qualified installer. Our experienced technical staff can take care of all kind of car audio upgrade jobs.

  • Car Stereo 
  • Multimedia Audio Visual (Sat/Navs, Headrest Screens, Roof Screens etc.)
  • Speakers/ Subwoofers / Amplifiers
  • OEM Adaptors Installation (DAB, iPod, iPhone, USB, Bluetooth, Aux)
  • Bluetooth Car Kit Installation
  • Car Security Alarms
  • Vehicle Tracking Systems
  • Reversing Camera / Parking Sensors

To book your installation Call now at: 020 8875 2525 or Email Us


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