ISUB TWIN passive subwoofers have been designed and developed by Focal to be compact and high-performance. Equipped with heavy-duty speaker drivers, each subwoofer can take up to 100 watts RMS. Ultra-compact, the subwoofers slide conveniently under a seat and attach easily using the self-adhesive strips provided, with no vehicle modifications required. Compatible with all Focal car audio products, as well as the Focal Inside Plug & Play range of kits, ISUB TWIN is the perfect addition to any on-board audio installation.