ISU 165 | 2-Way Component Speaker Kit (165mm Woofer) for OEM Audio Systems
High-Fidelity Performance, Compact Fitment
The Focal ISU 165 is a 2-way component speaker kit designed for drivers who want to transform their factory sound system without modifying their vehicle. Compact, efficient, and powerful, it combines Plug & Play installation with Focal’s signature acoustic precision — perfect for modern vehicles where space and integration are critical.
With a 165mm (6.5”) Polyglass woofer, inverted aluminium/magnesium tweeter, and shallow 48.9mm mounting depth, the ISU 165 fits effortlessly into most OEM locations while dramatically enhancing detail, soundstage, and clarity.
Polyglass Cone – Balanced and Accurate Sound
Focal’s exclusive Polyglass cone combines cellulose pulp and fine glass microbeads, achieving the ideal balance between rigidity, damping, and lightness. This construction ensures smooth frequency response, strong mid-bass impact, and a neutral tonal balance that stays faithful to the original recording.
The result is natural, detailed sound with warm midrange and tight, controlled bass – a true upgrade from standard factory speakers.
Aluminium/Magnesium Tweeter – Precision Treble Control
The inverted dome aluminium/magnesium tweeter delivers refined high-frequency performance with superior off-axis dispersion. It includes a two-position level adjuster (+3dB Flat/High), allowing you to tailor the treble to your vehicle’s acoustics and personal preference.
Mounted on the dashboard, A-pillar, or door, it provides crystal-clear highs and accurate imaging across the cabin, enhancing every note with precision and energy.
Compact, Easy OEM Integration
With a slim 48.9mm profile, the ISU 165 fits seamlessly into factory speaker mounts — no cutting or modification required. The integrated crossover simplifies installation and ensures perfect frequency balance between woofer and tweeter.
Its lightweight, rigid chassis guarantees optimal resonance control and a clean, professional fit in any compatible vehicle.
Engineered for Longevity
The ISU 165 is built for years of reliable performance. Its butyl rubber surround maintains flexibility and acoustic stability across temperature extremes, while Focal’s meticulous material selection ensures durability, efficiency, and superior sound consistency over time.
Every detail — from the magnet design to the crossover tuning — is engineered for enduring precision.
Focal Integration – Plug & Play Precision
The Focal ISU 165 exemplifies the Integration range philosophy: combining OEM fitment with Focal’s world-renowned sound signature. It delivers a neutral, dynamic, and high-sensitivity response in a design that fits perfectly into existing factory speaker locations.
Experience Focal Integration — French-engineered acoustics, effortless installation, and pure driving enjoyment.
