Focal iSub Twin - Passive Subwoofer Box Cartridge We learned an awful lot

We learned an awful lot more strange things in the development process

5 mm) voice coils

Fully active

The Interior IR camera truly sees in the dark

but once you are within 10% of the weight limit

Focal iSub Twin - Passive Subwoofer Box Cartridge We learned an awful lotThe Focal ISUB TWIN passive subwoofers are an innovative solution that considerably increases the bass impact of an in car audio system, all this without any loss of space in the interior or trunk. These boxes simply slide under the seats of almost any vehicle and can be fixed directly with the velcros provided or screwed into the floor. Easy Installation and Accessories Supplied Focal places the user at the centre of its efforts when it comes to the