Focal
ICU 690
ICU 690
2-way coaxial kit – 6x9” woofer
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This kit of 2-way coaxial 6x9" mm speakers advantageously replaces the original installation of your vehicle by offering dynamic sound and an ideally spatialized sound scene in the passenger compartment. Its great compactness (only 8.35 cm deep mounting) facilitates its assembly and use, for the pleasure of listening.
NATURAL SOUND
High-quality materials for impeccable sound. Universal kits feature the Polyglass diaphragm and an aluminum/magnesium inverted dome tweeter, Focal innovations that deliver clear, natural sound.
EASY INSTALLATION
The shallow depth of the ICU690 makes it easy to integrate into passenger compartments. The supplied protective grilles, including one dedicated to the rear panel, make installation even easier and more discreet. The integrated crossover makes it easy to connect your audio system.
OPTIMIZED TREBLE
The tweeter features a two-position Flat/High level control (+3 dB) to boost treble. This is particularly useful if the loudspeaker is placed at the bottom of the door.
SPECIFICATIONS
Sound - Acoustics
- Product type : 2 -way coaxial kit
- Membrane : Polyglass
- Tweeter : 164x235 mm
- Filter : Integrated
- Frequency response (+/- 3dB) : 55Hz -21kHz
- Maximum power : 160 watts
- Motor : Ferrite
- Nominal Impedance : 4 Ω
- Nominal power : 80 W RMS
- Sensivity : 93.6 dB
- Suspension material : Butyl
Sound - Electronics
- RMS power : 80 W RMS
Design
- Depth behind surface (Mounting depth) : 49 mm / 1.9 in
- Cut-Out diameter : 142 mm / 5.9 in
- Weight : 1250 g / 2.7 livre
TECHNOLOGIES
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.
POLYGLASS MEMBRANE
Well-defined mids
The diaphragm, the key component of a loudspeaker, is at the heart of our acoustic engineers' research. Polyglass technology, exclusive to Focal, consists of applying fine glass microbeads to a cellulose pulp cone. This process reconciles the excellent damping of paper with the rigidity of glass. The stiffness index is almost 10 times that of polypropylene. Adjusting the mass-rigidity-damping ratio results in a remarkably linear frequency response curve, right from the membrane design stage. This innovation also significantly increases definition in the midrange register.
