Everything you need to know about the product
Focal ISUB TWIN – Ultra-Compact Passive Subwoofer Kit (Pair)
The Focal ISUB TWIN delivers a serious bass upgrade in a smart, low-profile package. Designed for vehicles with limited space, these ultra-compact passive subwoofers provide powerful low-frequency response without compromising your cabin or boot layout.
Each enclosure features a heavy-duty double ferrite magnet and aluminium diaphragm, ensuring deep, punchy bass performance. Optimized front grilles help to project sound evenly throughout your vehicle, creating an immersive audio experience.
Installation is quick and tool-free — slide them under the seats* and secure using the provided hook-and-loop straps, or opt for a permanent mount with screws. This flexibility makes them ideal for cars, 4WDs, or commercial vehicles.
Pair the ISUB TWIN with the Focal Impulse 4.320 amplifier to unlock their full potential. With two channels powering the subwoofers, the remaining channels can be used for your front speakers, giving you a complete and clean-sounding system.
Pair of passive under-seat subwoofers
Heavy ferrite magnet and aluminium diaphragm
Ultra-compact enclosures – perfect for tight spaces
Easy install – hook-and-loop straps included
Compatible with Focal Impulse 4.320 amp
Front grille design for optimal sound dispersion
Can be screwed in for permanent installation
Designed for OEM integration – no vehicle modification required
Other premium options you might be interested in.
